4.7 Review

Recent progress in hydrogen: From solar to solar cell

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Review Nanoscience & Nanotechnology

Stability challenges for the commercialization of perovskite-silicon tandem solar cells

Leiping Duan et al.

Summary: Driven by the need for increased power conversion efficiency and simplified fabrication, tandem solar cells (TSCs) comprising silicon (Si) bottom cells and wide-bandgap perovskite top cells have emerged as a promising technology. However, the stability of perovskite remains a challenge for widespread commercialization. In this review, we discuss the current state of perovskite-Si TSC stability and identify key degradation mechanisms at the cell and module levels. We also consider economic factors and propose research directions to achieve the long-term stability necessary for successful commercialization.

NATURE REVIEWS MATERIALS (2023)

Article Chemistry, Multidisciplinary

Improved overall water splitting for hydrogen production on aluminium-doped SrTiO3 photocatalyst via tuned surface band bending

Li Tian et al.

Summary: Aluminum-doped SrTiO3 nanoparticles were synthesized with controllable aluminum doping by a mild hydrothermal method, and the photocatalytic overall water splitting was studied. The results showed an excellent photocatalytic performance with a H-2 production rate of about 4.1 mmol h(-1) g(-1) and an O-2 production rate of about 1.9 mmol h(-1) g(-1). This improvement in performance was attributed to the tuned surface band bending of SrTiO3 achieved by regulation of the Fermi level, which enhanced charge separation and accelerated the redox reaction.

ENVIRONMENTAL CHEMISTRY LETTERS (2023)

Article Chemistry, Physical

Hydrochloric acid etching induced flower-like NiFe- layered double hydroxide as efficient electrocatalyst for oxygen evolution reaction

Shuyun Wang et al.

Summary: In order to meet the increasing demand for clean energy storage in modern society, efficient and low-cost electrocatalysts are required. In this study, a simple two-step method was used to directly prepare NiFe-LDH on a NiFe foam substrate, resulting in a sample (NiFe-20-H) with excellent oxygen evolution reaction performance and long-term stability in alkaline electrolyte.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2023)

Article Multidisciplinary Sciences

Controlled growth of perovskite layers with volatile alkylammonium chlorides

Jaewang Park et al.

Summary: Controlling the crystallinity and surface morphology of perovskite layers is crucial for achieving high-efficiency perovskite solar cells. By adding alkylammonium chlorides (RACl) to a-formamidinium lead iodide (FAPbI(3)), the crystallization process and surface morphology of the perovskite thin films can be controlled. The resulting perovskite thin layers facilitate the fabrication of perovskite solar cells with a high power-conversion efficiency of 26.08%.

NATURE (2023)

Article Chemistry, Physical

Simultaneous Improvement in Hole Storage and Interfacial Catalysis over Ni-Fe Oxyhydroxide-Modified Tantalum Nitride Photoanodes

Pengpeng Wang et al.

Summary: Loading an individual Ni-Fe oxyhydroxide layer on a Ta3N5 photoanode can significantly enhance the photocurrent density and improve the efficiency of the PEC water oxidation system. The Ni-Fe oxyhydroxide layer functions as both a hole-storage layer and a cocatalyst, providing new insights into the charge transfer process.

ACS CATALYSIS (2023)

Review Chemistry, Physical

Graphene-Like Monoelemental 2D Materials for Perovskite Solar Cells

Selengesuren Suragtkhuu et al.

Summary: This article summarizes the importance and challenges of perovskite solar cells (PSCs), as well as the recent research advances in using monoelemental 2D materials to improve PSCs performance.

ADVANCED ENERGY MATERIALS (2023)

Article Physics, Applied

Minimization of the electrical contact resistance in thin-film thermoelectric device

Ming Tan et al.

Summary: In this study, an additional Ti contact layer is developed to minimize the electrical contact resistance in thin-film thermoelectric devices. The low electrical contact resistance is mainly attributed to the partial epitaxial growth of Bi2Te3-based thin-film materials. This Ti contact layer strengthens the contact between Cu electrodes and Bi2Te3-based thermoelectric thin films through partial epitaxial growth, resulting in high-performance thin-film thermoelectric devices with ultrahigh surface output power density.

APPLIED PHYSICS REVIEWS (2023)

Article Chemistry, Applied

Highly active and stable MoS2-TiO2 nanocomposite catalyst for slurry-phase phenanthrene hydrogenation

Chenggong Yang et al.

Summary: MoS2-TiO2 nanocomposite catalysts with Janus structure were synthesized via a simple solvothermal method. The nanocomposite catalysts exhibited strong interaction between MoS2 layers and TiO2 nanoparticles, resulting in enhanced catalytic activity and stability for phenanthrene hydrogenation.

CHINESE JOURNAL OF CATALYSIS (2023)

Article Chemistry, Multidisciplinary

Super-Hydrophilic Leaflike Sn4P3 on the Porous Seamless Graphene-Carbon Nanotube Heterostructure as an Efficient Electrocatalyst for Solar-Driven Overall Water Splitting

Sk Riyajuddin et al.

Summary: Water splitting using renewable energy resources is an economic and green approach for producing high-purity hydrogen fuel. This study reports a superhydrophilic layered leaflike Sn4P3 on a graphene-carbon nanotube matrix as an efficient and stable electrocatalyst for water splitting. The catalyst exhibits outstanding electrochemical performance, stability, and solar-to-hydrogen conversion efficiency.

ACS NANO (2022)

Article Chemistry, Multidisciplinary

Alkali Additives Enable Efficient Large Area (>55 cm2) Slot-Die Coated Perovskite Solar Modules

Prem Jyoti Singh Rana et al.

Summary: A seed-assisted crystallization approach using alkali salts has been demonstrated to enable the fabrication of large-area and highly crystalline perovskite films. The slot-die coated perovskite films show improved optoelectronic properties and stability.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Multidisciplinary

Solar Water Splitting Using Earth-Abundant Electrocatalysts Driven by High-Efficiency Perovskite Solar Cells

Abdullah M. Asiri et al.

Summary: Splitting water using renewable energy is a promising strategy for hydrogen production. This study investigated the use of earth-abundant catalysts and low-cost perovskite solar cells for efficient water splitting. The developed catalysts showed high activities for hydrogen evolution and oxygen evolution reactions, enabling a remarkable solar-to-hydrogen conversion efficiency of 12.67% in an alkaline electrolyzer.

CHEMSUSCHEM (2022)

Article Chemistry, Multidisciplinary

A two-photon tandem black phosphorus quantum dot-sensitized BiVO4 photoanode for solar water splitting

Bingjun Jin et al.

Summary: The study demonstrates a strategically designed E-BiVO4/BPQDs/OL-OEC photoanode, which effectively improves the efficiency of photoelectrochemical water splitting by achieving a high photocurrent density under AM 1.5 illumination, combining multiple functional components for efficient solar-to-fuel conversion devices.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

Article Chemistry, Physical

Modeling photovoltaic-electrochemical water splitting devices for the production of hydrogen under real working conditions

Alexa Grimm et al.

Summary: In this study, an equivalent circuit model is proposed to compute the steady state performance of photoelectrochemical cells and compare the performance of different devices under real operating conditions. The results show that real illumination data has a considerable impact on the efficiency of PV-EC devices, and the yearly average solar-to-hydrogen efficiency is significantly lower than the ideal one.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

Article Chemistry, Physical

Solar-to-Chemical Fuel Conversion via Metal Halide Perovskite Solar-Driven Electrocatalysis

Haowei Huang et al.

Summary: Sunlight is a rich and clean energy source that can contribute significantly to society's energy demands. Metal halide perovskites (MHP) have gained attention for solar fuel generation, with solar-driven electrocatalysis showing higher efficiency and stability compared to photocatalysis. Current research focuses on three types of MHP solar-driven electrocatalysis device technologies and their advantages and limitations in solar-to-fuel reactions.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2022)

Article Chemistry, Physical

Stress-induced BiVO4 photoanode for enhanced photoelectrochemical performance

Weiyi Jiang et al.

Summary: A simple method to introduce stress into the BiVO4 photoanode has been developed, which improves its photoelectrochemical properties by causing distortion in the crystal structure. The new photoanode exhibits nearly double the surface photopotential and significantly higher photocurrent density compared to the original photoanode, especially at elevated temperatures.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Switching from two-electron to four-electron photocatalytic pure water splitting via band bending engineering with boosted activity

Wenlong Fu et al.

Summary: This study demonstrated a novel Z-scheme heterojunction with improved photocatalytic performance in pure water splitting. The phosphorization treatment reduced hole concentration in p-type GIZON, resulting in a transition of band structure and a change in reaction mechanism. Additionally, the type-II band arrangement and the presence of a thin InP layer on the surface of GIZON-P accelerated the rate-limited O-2 evolution process.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Ru/NC heterointerfaces boost energy-efficient production of green H2 over a wide pH range

Qifeng Yang et al.

Summary: This study reports a pH-universal electrocatalyst Ru-x@mONC for green H-2 production. The optimal catalyst Ru-20@mONC exhibits excellent catalytic activity and stability, achieving low cell-potentials for electrochemical water splitting under different electrolyte conditions. A proof-of-concept test demonstrates efficient green H-2 production powered by a single-junction silicon solar cell, and spectroscopic and theoretical studies verify the formation of abundant heterointerfaces in the catalyst, which greatly contribute to its performance.

NANO RESEARCH (2022)

Review Chemistry, Applied

Recent progress and perspectives on Sb2Se3-based photocathodes for solar hydrogen production via photoelectrochemical water splitting

Shuo Chen et al.

Summary: This study focuses on the development of Sb2Se3-based photocathodes in photoelectrochemical water splitting, highlighting various architectures and engineering efforts to improve the efficiency of solar-to-hydrogen conversion. The study also discusses future research directions in the field of Sb2Se3-based photocathodes.

JOURNAL OF ENERGY CHEMISTRY (2022)

Article Chemistry, Applied

Excess PbI2 evolution for triple-cation based perovskite solar cells with 21.9% efficiency

Zhu Ma et al.

Summary: CsFAMA mixed perovskites show increased power conversion efficiency over time, with PbI2 playing a role in defect passivation in the perovskite film. The study explores the relationship between enhanced device performance, excess PbI2, and PbI2 evolution in triple cation perovskite films.

JOURNAL OF ENERGY CHEMISTRY (2022)

Review Chemistry, Applied

Black phosphorus-based heterostructures for photocatalysis and photoelectrochemical water splitting

Shutao Li et al.

Summary: This review introduces the development and applications of black phosphorus (BP)-based heterostructures. BP exhibits excellent physical and chemical properties, making it suitable for photocatalytic and photoelectrochemical reactions. Different dimensions of BP can be used to prepare various types of heterostructures, which are widely used in water splitting, CO2 reduction, pollutant degradation, and other fields. However, further development of BP-based heterostructures faces challenges and opportunities.

JOURNAL OF ENERGY CHEMISTRY (2022)

Article Nanoscience & Nanotechnology

Laser-Reduced BiVO4 for Enhanced Photoelectrochemical Water Splitting

Mariam Barawi et al.

Summary: This study proposes a laser irradiation method to superficially degrade BiVO4 photoelectrodes and enhance their water oxidation reaction performance. Through a combination of advanced characterization techniques, it was found that the reduction process is localized at the surface of the sample, resulting in effective n-type doping and a shift to more favorable energy band positions for water oxidation. Additionally, changes in sample morphology and improved charge extraction contribute to an increase in photocurrent density.

ACS APPLIED MATERIALS & INTERFACES (2022)

Article Chemistry, Physical

Hetero-tandem organic solar cells drive water electrolysis with a solar-to-hydrogen conversion efficiency up to 10%

Young Kyeong Kim et al.

Summary: By developing a hetero-tandem organic photovoltaic device, high-efficiency and stable solar hydrogen production system can be achieved.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Round-the-clock bifunctional honeycomb-like nitrogen-doped carbon-decorated Co2P/Mo2C-heterojunction electrocatalyst for direct water splitting with 18.1% STH efficiency

Pengliang Sun et al.

Summary: In this study, a high-efficiency catalyst for photoelectric coupling hydrogen production was successfully prepared by using heteroatoms and heterojunction interface engineering strategy. The catalyst can lower the energy barriers of hydrogen evolution and oxygen evolution reactions, and improve the electrical conductivity, thereby enhancing the electrochemical performance. By applying this catalyst to a solar water-splitting tank, a stable solar hydrogen conversion efficiency was achieved.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Heterostructured Co/Mo-sulfide catalyst enables unbiased solar water splitting by integration with perovskite solar cells

Meng Wang et al.

Summary: This study demonstrates a new approach for cost-effective solar water splitting system towards green hydrogen production. By elaborately implanting polyoxometalate, an efficient oxygen evolution reaction catalyst is created, which is successfully integrated into a solar cell-electrode system, achieving high solar energy utilization efficiency.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Multidisciplinary Sciences

Decoupling light absorption and carrier transport via heterogeneous doping in Ta3N5 thin film photoanode

Yequan Xiao et al.

Summary: This study presents a heterogeneous doping strategy that decouples light absorption and carrier transport in semiconductor thin film photoelectrodes, improving their efficiency for solar-to-hydrogen conversion.

NATURE COMMUNICATIONS (2022)

Article Multidisciplinary Sciences

Floating perovskite-BiVO4 devices for scalable solar fuel production

Virgil Andrei et al.

Summary: Photocathodes deposited on thin and flexible substrates achieved high activity for hydrogen production and high selectivity for CO2 reduction. The corresponding lightweight perovskite-BiVO4 PEC devices demonstrated promising solar-to-fuel efficiencies and potential for scalability. The use of lightweight reactors and the ability to float in water make them suitable for open-water applications.

NATURE (2022)

Article Chemistry, Physical

Efficient and stable core-shell ?-Fe2O3/WS2/WOx photoanode for oxygen evolution reaction to enhance photoelectrochemical water splitting

Zohreh Masoumi et al.

Summary: In this study, WS2 nanosheets were prepared through a liquid-phase exfoliation method and loaded on alpha-Fe(2)O(3)photoanodes to form core-shell structured photoanodes. These structures have advantages of effective separation, decreased recombination of electron-hole pairs, and increased electron transport properties, resulting in improved PEC performance.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Enhanced charge transfer with tuning surface state in hematite photoanode integrated by niobium and zirconium co-doping for efficient photoelectrochemical water splitting

Love Kumar Dhandole et al.

Summary: Niobium and zirconium co-doping improves the performance and stability of a hematite photoanode in water splitting by enhancing crystallite size, charge transfer, and suppressing charge recombination.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Review Materials Science, Multidisciplinary

Review on g-C3N4-based S-scheme heterojunction photocatalysts

Yunfeng Li et al.

Summary: With the rapid development of economy and modern industry, serious environmental pollution and energy shortage have become major urgent challenges to the human society. Photocatalysis is a promising technology to provide green energy. However, the limitations of g-C 3 N 4 , such as fast recombination of charges, limited light response range, and weak oxidation ability, restrict its photocatalytic performance. The construction of heterojunctions with g-C 3 N 4 and other semiconductor materials can effectively address these issues and improve the photocatalytic performance.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

Review Physics, Multidisciplinary

Z-scheme systems: From fundamental principles to characterization, synthesis, and photocatalytic fuel-conversion applications

Guangfu Liao et al.

Summary: This review presents the recent discoveries and developments of Z-scheme photocatalysts for solar-driven fuel production. It provides an overview of the fundamental principles, characterization technologies, and synthesis methods of Z-scheme photocatalysts. Representative examples of Z-scheme photocatalysts for photocatalytic fuel-conversion applications are showcased. The review also discusses the major challenges, opportunities, and future prospects in the field. Z-scheme heterojunctions demonstrate great potential as highly efficient photocatalysts for various photocatalytic fuel-conversion applications.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2022)

Review Chemistry, Multidisciplinary

Challenges of Z-scheme photocatalytic mechanisms

Linxi Wang et al.

Summary: This study analyzes the challenges of photocatalytic mechanisms in liquid-phase and all-solid-state Z-scheme systems from various perspectives, including thermodynamics, charge-transfer dynamics, applicability, and practical synthesis. It highlights the challenges for electron transfer in liquid-phase Z-scheme systems, where the dynamic motion of photocatalyst nanoparticles and redox couples, as well as the prohibition of transferring free electrons via water media, ultimately led to the flourishing of step-scheme heterojunctions.

TRENDS IN CHEMISTRY (2022)

Article Chemistry, Physical

Enhanced solar water splitting of BiVO4 photoanodes by in situ surface band edge modulation

Kai Song et al.

Summary: By using DFT calculations, it was confirmed that V-rich BiVO4 could enhance carrier separation efficiency. The surface band edge of BiVO4 photoanode was modulated through gas-phase cation exchange (CA) method, resulting in the formation of a V-rich surface. The optimized V-rich BiVO4 photoanode showed significantly improved photocurrent density and photoelectrochemical performance.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Article Chemistry, Applied

Water oxidation sites located at the interface of Pt/SrTiO3 for photocatalytic overall water splitting

Xianwen Zhang et al.

Summary: In the context of photocatalytic overall water splitting (POWS) using semiconductor photocatalysts, the location of the water oxidation sites is typically assumed to be on the surface of the semiconductor. However, for the model semiconductor photocatalyst Pt/SrTiO3, the water oxidation sites are actually found to be at the interface between Pt and SrTiO3, where the photogenerated holes are accumulated more readily. Experimental and theoretical studies demonstrate the critical role of interfacial properties in achieving or improving POWS on cocatalyst loaded semiconductor photocatalysts.

CHINESE JOURNAL OF CATALYSIS (2022)

Review Chemistry, Multidisciplinary

The high open-circuit voltage of perovskite solar cells: a review

Zhanglin Guo et al.

Summary: Perovskite solar cells have achieved significant progress in recent years, particularly in terms of their high open-circuit voltage. Improving the open-circuit voltage is critical for enhancing device efficiency. This review paper provides an overview of the recent developments in the open-circuit voltage of perovskite solar cells, discussing strategies to reduce undesirable recombination in the perovskite film and at the interfaces.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

Article Chemistry, Physical

Constructing large-size and ultrathin NiCoP nanosheets on an Fe2O3 photoanode toward efficient solar water splitting

Chenchen Feng et al.

Summary: A method for constructing large-size and ultrathin NiCoP nanosheets on Fe2O3 nanorod photoanodes was investigated, which significantly improved the photoelectrochemical water oxidation activity. Rapid transfer of photogenerated holes was facilitated by the tight interfacial interaction and abundant surface active sites, leading to enhanced photocurrent density.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Article Chemistry, Multidisciplinary

High-performance and stable BiVO4 photoanodes for solar water splitting via phosphorus-oxygen bonded FeNi catalysts

Zhenzhen Zhang et al.

Summary: In this study, it is reported that a combination of phosphorus-oxygen bonded catalysts and BiVO4 photoanodes can significantly enhance the photoelectrochemical water oxidation activity and stability. The experimental and analysis results provide insights into the electron density redistribution and electronic coupling between the catalysts and photoanodes. This work offers a new approach for designing efficient photoanodes for solar water splitting applications.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

Review Chemistry, Physical

Single-atom catalysts for high-efficiency photocatalytic and photoelectrochemical water splitting: distinctive roles, unique fabrication methods and specific design strategies

Jingsheng He et al.

Summary: This article presents a comprehensive review of recent advances in single-atom catalysts (SACs) for photocatalytic and photoelectrochemical water splitting. The distinctive roles of SACs and unique fabrication methods are highlighted. Additionally, several specific design strategies to enhance the photo(electro)catalytic activity of SACs are discussed, along with prospects for future applications in efficient solar energy utilization.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Review Materials Science, Multidisciplinary

Nanoscale SiOx Tunnel Oxide Deposition Techniques and Their Influence on Cell Parameters of TOPCon Solar Cells

Siva Parvathi Padi et al.

Summary: This article discusses the goals of solar cell technology, the unique characteristics and technical parameters of TOPCon solar cells, as well as different deposition methods for the SiOx tunnel oxide layer. It also briefly touches on the impact of deposition conditions on cell parameters and the development of alternative tunnel oxide materials for TOPCon solar cells.

TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS (2021)

Article Chemistry, Physical

Strawberry-like Co3O4-Ag bifunctional catalyst for overall water splitting

Yi Feng et al.

Summary: The research utilized a laser ablation technique to prepare a strawberry-like catalyst embedded with Co3O4 and Ag cluster, effectively promoting water electrolysis process, reducing overpotential, and enhancing the performance of hydrogen evolution and oxygen evolution.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Various metal (Fe, Mo, V, Co)-doped Ni2P nanowire arrays as overall water splitting electrocatalysts and their applications in unassisted solar hydrogen production with STH 14 %

Hyogyun Roh et al.

Summary: Metal phosphide nanowires grown directly on porous electrodes show enhanced catalytic activity for water splitting. Fe-doped Ni2P nanowires exhibit the best oxygen evolution reaction performance, while Mo-doped Ni2P nanowires show excellent hydrogen evolution reaction activity. DFT calculations support the experimental results, and combining NiMoP/NiFeP for overall water splitting requires a low potential of 1.57 V to generate 10 mA cm-2 current density. The assembled PV-EC system achieves a high solar-to-hydrogen conversion efficiency of 14%.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Multidisciplinary Sciences

NiMoV and NiO-based catalysts for efficient solar-driven water splitting using thermally integrated photovoltaics in a scalable approach

Ilknur Bayrak Pehlivan et al.

Summary: In this study, a trimetallic NiMoV catalyst was developed for the hydrogen evolution reaction, showing improved performance in reducing overpotential. The study also examined the performance and efficiency of a solar-driven water splitting system, demonstrating stable operation and high efficiency hydrogen production with the NiMoV-NiO electrolyzer at different temperatures.

ISCIENCE (2021)

Article Chemistry, Multidisciplinary

Super-Hydrophilic Hierarchical Ni-Foam-Graphene-Carbon Nanotubes-Ni2P-CuP2 Nano-Architecture as Efficient Electrocatalyst for Overall Water Splitting

Sk Riyajuddin et al.

Summary: This study introduces a superhydrophilic homogeneous bimetallic phosphide catalyst Ni2P-CuP2, which exhibits ultralow overpotentials for water electrolysis in acidic and alkaline mediums and excellent stability at high current densities, showing promising potential for green fuel production.

ACS NANO (2021)

Article Engineering, Environmental

Fe2O3 hierarchical tubular structure decorated with cobalt phosphide (CoP) nanoparticles for efficient photoelectrochemical water splitting

Nguyen Duc Quang et al.

Summary: This study successfully improved the performance of hematite-based photoanodes by fabricating a hierarchical tubular structure CoP/SnO2:Fe2O3, achieving a high photocurrent density and lowering the onset potential.

CHEMICAL ENGINEERING JOURNAL (2021)

Review Green & Sustainable Science & Technology

A review on particulate photocatalytic hydrogen production system: Progress made in achieving high energy conversion efficiency and key challenges ahead

Sandeep Kumar Lakhera et al.

Summary: Photocatalytic water splitting is a sustainable and clean method for producing renewable hydrogen. Various existing particulate photocatalytic systems have been used for hydrogen production through overall water splitting and photo-reforming of biomass-derived organic substances. Progress has been made in improving the efficiency of existing photocatalysts. Factors affecting the particulate photocatalytic water splitting system need to be addressed to overcome limitations and enhance large-scale hydrogen production efficiency.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

Article Energy & Fuels

Influence of TCO and a-Si:H Doping on SHJ Contact Resistivity

Christoph Luderer et al.

Summary: Doping variation of amorphous silicon and transparent conductive oxide can modify the position of Fermi-level to improve efficiency in SHJ solar cells. Control of doping gas concentration during deposition is crucial for low contact resistance in a-Si:H, while little to no oxygen gas concentration is needed for ITO and AZO.

IEEE JOURNAL OF PHOTOVOLTAICS (2021)

Article Chemistry, Physical

Electrochromic solar water splitting using a cathodic WO3 electrocatalyst

Ilknur Bayrak Pehlivan et al.

Summary: Solar-driven water splitting using WO3 as a cathodic electrocatalyst in combination with (Ag,Cu)InGaSe2 solar cell modules can produce hydrogen efficiently. The electrochromic effect of WO3 can be utilized for monitoring catalyst performance and controlling temperature. The solar-to-hydrogen efficiency can reach up to 13% using WO3 coated Ni foam electrolyzers.

NANO ENERGY (2021)

Article Nanoscience & Nanotechnology

Strategic Design of a Bifunctional NiFeCoW@NC Hybrid to Replace the Noble Platinum for Dye-Sensitized Solar Cells and Hydrogen Evolution Reactions

Ting Wang et al.

Summary: The study introduces a novel bifunctional catalyst based on NiFeCoW@NC for DSSCs and hydrogen evolution, showing excellent performance and stability. The catalyst exhibits low overpotential and high current density for hydrogen evolution, while achieving high power conversion efficiency for DSSCs.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Multidisciplinary

Intrinsic Electrocatalytic Activity for Oxygen Evolution of Crystalline 3d-Transition Metal Layered Double Hydroxides

Fabio Dionigi et al.

Summary: The research employed new synthesis strategies to obtain a broad series of crystalline LDH and electrocatalysts, with NiFe LDH showing the highest activity through electrochemical active surface area normalization. Theoretical reactivity analysis revealed that these trends originate from the dual-metal-site nature of the reaction centers, which may be utilized for designing catalysts with improved performance.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Review Engineering, Environmental

A review on alkaline earth metal titanates for applications in photocatalytic water purification

Rafael R. Solis et al.

Summary: This review comprehensively covers the applications of alkaline earth metal titanate-based photocatalysts in water pollutant removal, focusing on strategies for improving photocatalytic performance. The study highlights discussions on key issues that may impact future real applications, along with an overview of techniques used to assess the contribution of different reactive oxidation species.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Energy & Fuels

A Perspective on the Commercial Viability of Perovskite Solar Cells

JinKiong Ling et al.

Solar RRL (2021)

Article Multidisciplinary Sciences

A molecular photosensitizer achieves a Voc of 1.24V enabling highly efficient and stable dye-sensitized solar cells with copper(II/I)-based electrolyte

Dan Zhang et al.

Summary: Developing photosensitizers with high open-circuit voltage (V-oc) is important to improve the power conversion efficiency (PCE) of co-sensitized solar cells. By employing a carefully tailored organic sensitizer MS5 with copper electrolyte, the authors achieved a V-oc of 1.24V and recorded a PCE of 34.5% under ambient light.

NATURE COMMUNICATIONS (2021)

Article Energy & Fuels

Boron-doped nitrogen-deficient carbon nitride-based Z-scheme heterostructures for photocatalytic overall water splitting

Daming Zhao et al.

Summary: Researchers have successfully used doped carbon nitride-based Z-scheme heterostructures to split water and produce hydrogen, but coupling suitable H-2 and O-2 evolution components remains challenging.

NATURE ENERGY (2021)

Article Multidisciplinary Sciences

Photoelectrochemical water splitting by hybrid organic-inorganic systems: Setting the path from 2% to 20% solar-to-hydrogen conversion efficiency

Antonio Alfano et al.

Summary: Promoting solar fuels as a viable alternative to hydrocarbons requires technologies that combine efficiency, durability, and low cost. The combination of HPC and PSC systems shows potential for sustainable hydrogen production, with initial experiments achieving over 2% STH efficiency and the possibility of reaching 10% to 20% STH efficiency with further development of semiconductor and perovskite materials.

ISCIENCE (2021)

Article Multidisciplinary Sciences

Photocatalytic solar hydrogen production from water on a 100-m2 scale

Hiroshi Nishiyama et al.

Summary: Hydrogen, as an energy carrier, can be obtained through photocatalysis and electrolysis, making it a carbon-neutral energy source. While photocatalytic water splitting efficiency is low, large-scale safe production and collection of hydrogen is feasible. The essential next steps for economic viability and practical use are reactor and process optimization to reduce costs and improve efficiency and stability.

NATURE (2021)

Review Energy & Fuels

Light trapping in thin silicon solar cells: A review on fundamentals and technologies

Rebecca Saive

Summary: This paper discusses the significance of thin, flexible, and efficient silicon solar cells, as well as the challenges in photon management. It also explores known technological and theoretical limitations, as well as methods to improve light trapping.

PROGRESS IN PHOTOVOLTAICS (2021)

Article Multidisciplinary Sciences

NiFeOx decorated Ge-hematite/perovskite for an efficient water splitting system

Ki-Yong Yoon et al.

Summary: The study investigates how tin diffusion affects overall photoelectrochemical performance, revealing that germanium is a better dopant for enhancing hematite photoanode performance. A new doping method using germanium suppresses tin diffusion, significantly improving the performance of hematite photoanodes.

NATURE COMMUNICATIONS (2021)

Review Chemistry, Applied

Heterostructured MOFs photocatalysts for water splitting to produce hydrogen

Yu Xiao et al.

Summary: Metal-organic frameworks (MOFs) are widely used as promising photocatalytic materials, but most of them have poor charge transportation and separation efficiency. To address this issue, heterostructures based on MOFs have been constructed. Key factors affecting interfacial charge transfer include interface connection mode, morphology control, and modification.

JOURNAL OF ENERGY CHEMISTRY (2021)

Review Chemistry, Applied

An account of the strategies to enhance the water splitting efficiency of noble-metal-free electrocatalysts

Subhasis Shit et al.

Summary: The electrolysis of water for hydrogen generation shows promise as an energy conversion technology, but noble-metal-based electrocatalysts have high cost and low stability, leading to research efforts in developing alternatives with abundant elements. Materials like transition metal compounds, carbonaceous, and hybrids show potential but still have a gap compared to noble-metal-based electrocatalysts. Various strategies are being deployed to enhance the activity of noble-metal-free electrocatalysts.

JOURNAL OF ENERGY CHEMISTRY (2021)

Review Computer Science, Interdisciplinary Applications

Recent advances on interfacial engineering of hematite photoanodes for viable photo-electrochemical water splitting

Fan Li et al.

Summary: Hematite (α-Fe2O3) shows great promise as a photoanode material, but its sluggish oxygen evolution kinetics and poor bulk charge transport at interfaces limit the PEC performance. Recent research focuses on interfacial engineering of hematite photoanodes to enhance PEC performance by optimizing optical, electronic properties, and morphology.

ENGINEERING REPORTS (2021)

Article Chemistry, Physical

An over 20% solar-to-hydrogen efficiency system comprising a self-reconstructed NiCoFe-based hydroxide nanosheet electrocatalyst and monolithic perovskite/silicon tandem solar cell

Sanjiang Pan et al.

Summary: Utilizing the electrochemical instability of metal organic framework ligands is a promising strategy for solving the challenge of achieving high efficiency solar water splitting systems. By pairing catalysts with a tandem solar cell, an unprecedented STH efficiency of 21.32% was achieved.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Chemistry, Multidisciplinary

Characterizing photocatalysts for water splitting: from atoms to bulk and from slow to ultrafast processes

Christine Kranz et al.

Summary: Research on light-driven catalysis is essential due to increasing energy consumption and global warming threats. Efforts are focused on developing artificial photosynthesis methods and using analytical and physicochemical techniques to understand solar energy-driven catalytic processes.

CHEMICAL SOCIETY REVIEWS (2021)

Article Chemistry, Physical

Demonstration of green hydrogen production using solar energy at 28% efficiency and evaluation of its economic viability

M. A. Khan et al.

Summary: The study presents a concentrator photovoltaic-electrolysis (CPV-E) setup with a solar to hydrogen efficiency of 28%, demonstrating a potential cost competitiveness with c-Si solar farms for green hydrogen production. Sensitivity analysis indicates that, under specific conditions, the levelized cost of hydrogen from CPV-electrolysis systems can be below $2 per kg.

SUSTAINABLE ENERGY & FUELS (2021)

Review Nanoscience & Nanotechnology

Nanocarbon-Enhanced 2D Photoelectrodes: A New Paradigm in Photoelectrochemical Water Splitting

Jun Ke et al.

Summary: This study critically examines various 2D layered photoelectrode materials, discusses the correlations between the intrinsic structural properties and functions of the photoelectrodes, and analyzes strategies for assembling integrated photoelectrodes using advanced nanocarbons as co-catalysts to enhance PEC water splitting performances.

NANO-MICRO LETTERS (2021)

Review Chemistry, Multidisciplinary

Fiber-based thermoelectrics for solid, portable, and wearable electronics

Xiao-Lei Shi et al.

Summary: This work provides a comprehensive review of fiber-based thermoelectrics, discussing significant advances in various types of fibers and devices for applications in electronics. The challenges and future directions towards the development of fiber-based thermoelectrics are also pointed out.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Review Energy & Fuels

Hydrogen from solar energy, a clean energy carrier from a sustainable source of energy

Seyed Ehsan Hosseini et al.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2020)

Review Engineering, Environmental

Emerging surface strategies on graphitic carbon nitride for solar driven water splitting

Jianjian Yi et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Review Chemistry, Physical

Metal Oxide-Based Tandem Cells for Self-Biased Photoelectrochemical Water Splitting

Yubin Chen et al.

ACS ENERGY LETTERS (2020)

Article Chemistry, Multidisciplinary

A Low-Cost and High-Efficiency Integrated Device toward Solar-Driven Water Splitting

Jia Liang et al.

ACS NANO (2020)

Review Engineering, Environmental

Black phosphorus photocatalysts for photocatalytic H2 generation: A review

Zhi-Kai Shen et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Review Chemistry, Multidisciplinary

Strategies for Semiconductor/Electrocatalyst Coupling toward Solar-Driven Water Splitting

Sitaramanjaneya Mouli Thalluri et al.

ADVANCED SCIENCE (2020)

Review Chemistry, Multidisciplinary

Z-Scheme Photocatalytic Systems for Solar Water Splitting

Boon-Junn Ng et al.

ADVANCED SCIENCE (2020)

Article Multidisciplinary Sciences

Photocatalytic water splitting with a quantum efficiency of almost unity

Tsuyoshi Takata et al.

NATURE (2020)

Review Chemistry, Physical

Recent development in band engineering of binary semiconductor materials for solar driven photocatalytic hydrogen production

Muhammad Tahir et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2020)

Article Engineering, Electrical & Electronic

Fabrication of WO3 photoanode on crystalline Si solar cell for water splitting

Yuanfei Feng et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2020)

Review Nanoscience & Nanotechnology

Water Splitting: From Electrode to Green Energy System

Xiao Li et al.

NANO-MICRO LETTERS (2020)

Article Engineering, Chemical

Recent progress in water splitting and hybrid supercapacitors based on nickel-vanadium layered double hydroxides

Josué M. Gonçalves et al.

Journal of Energy Chemistry (2020)

Review Physics, Applied

Passivated emitter and rear cell-Devices, technology, and modeling

Ralf Preu et al.

APPLIED PHYSICS REVIEWS (2020)

Article Nanoscience & Nanotechnology

Oxidization-Free Spiro-OMeTAD Hole-Transporting Layer for Efficient CsPbI2Br Perovskite Solar Cells

Zhu Ma et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Article Nanoscience & Nanotechnology

Nicotinamide as Additive for Microcrystalline and Defect Passivated Perovskite Solar Cells with 21.7% Efficiency

Zhu Ma et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Review Chemistry, Inorganic & Nuclear

Artificial Z-scheme photocatalytic system: What have been done and where to go?

Danlian Huang et al.

COORDINATION CHEMISTRY REVIEWS (2019)

Review Chemistry, Physical

A review on photoelectrochemical hydrogen production systems: Challenges and future directions

Mahmoud Ahmed et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2019)

Review Chemistry, Physical

A critical review in strategies to improve photocatalytic water splitting towards hydrogen production

Nur Fajrina et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2019)

Article Chemistry, Physical

An efficient tandem photoelectrochemical cell composed of FeOOH/TiO2/BiVO4 and Cu2O for self-driven solar water splitting

Xiang Yin et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2019)

Article Chemistry, Physical

In-situ synthesis of AgNbO3/g-C3N4 photocatalyst via microwave heating method for efficiently photocatalytic H2 generation

Pengfei Chen et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

Review Chemistry, Physical

Recent Advances and Emerging Trends in Photo-Electrochemical Solar Energy Conversion

S. David Tilley

ADVANCED ENERGY MATERIALS (2019)

Editorial Material Chemistry, Physical

Photochemical Conversion and Storage of Solar Energy

Xin Xia et al.

ACS ENERGY LETTERS (2019)

Review Chemistry, Multidisciplinary

Progress on ternary oxide-based photoanodes for use in photoelectrochemical cells for solar water splitting

Dong Ki Lee et al.

CHEMICAL SOCIETY REVIEWS (2019)

Review Chemistry, Multidisciplinary

Toward practical solar hydrogen production - an artificial photosynthetic leaf-to-farm challenge

Jin Hyun Kim et al.

CHEMICAL SOCIETY REVIEWS (2019)

Review Chemistry, Multidisciplinary

Recent developments in heterogeneous photocatalysts for solar-driven overall water splitting

Zheng Wang et al.

CHEMICAL SOCIETY REVIEWS (2019)

Review Chemistry, Physical

Solar-to-Hydrogen Energy Conversion Based on Water Splitting

Jing Qi et al.

ADVANCED ENERGY MATERIALS (2018)

Review Chemistry, Multidisciplinary

Innovative Strategies for Electrocatalytic Water Splitting

Bo You et al.

ACCOUNTS OF CHEMICAL RESEARCH (2018)

Article Nanoscience & Nanotechnology

Perovskite Photovoltaic Integrated CdS/TiO2 Photoanode for Unbiased Photoelectrochemical Hydrogen Generation

Siva Krishna Karuturi et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

Article Chemistry, Multidisciplinary

Water splitting by electrolysis at high current densities under 1.6 volts

Haiqing Zhou et al.

ENERGY & ENVIRONMENTAL SCIENCE (2018)

Review Chemistry, Multidisciplinary

Pathways to electrochemical solar-hydrogen technologies

Shane Ardo et al.

ENERGY & ENVIRONMENTAL SCIENCE (2018)

Editorial Material Multidisciplinary Sciences

Addressing the stability issue of perovskite solar cells for commercial applications

Lei Meng et al.

NATURE COMMUNICATIONS (2018)

Article Chemistry, Physical

Optimized photoelectrochemical tandem cell for solar water splitting

Antonio Vilanova et al.

ENERGY STORAGE MATERIALS (2018)

Article Chemistry, Multidisciplinary

A layered Na1-xNiyFe1-yO2 double oxide oxygen evolution reaction electrocatalyst for highly efficient water-splitting

Baicheng Weng et al.

ENERGY & ENVIRONMENTAL SCIENCE (2017)

Article Energy & Fuels

Visible and direct sunlight induced H2 production from water by plasmonic Ag-TiO2 nanorods hybrid interface

Rayees Ahmad Rather et al.

SOLAR ENERGY MATERIALS AND SOLAR CELLS (2017)

Article Chemistry, Multidisciplinary

Recent Progress in Energy-Driven Water Splitting

Si Yin Tee et al.

ADVANCED SCIENCE (2017)

Review Chemistry, Multidisciplinary

Earth-abundant catalysts for electrochemical and photoelectrochemical water splitting

Isolda Roger et al.

NATURE REVIEWS CHEMISTRY (2017)

Review Chemistry, Multidisciplinary

Photoelectrochemical devices for solar water splitting - materials and challenges

Chaoran Jiang et al.

CHEMICAL SOCIETY REVIEWS (2017)

Article Chemistry, Multidisciplinary

Atomically Altered Hematite for Highly Efficient Perovskite Tandem Water-Splitting Devices

Gurudayal et al.

CHEMSUSCHEM (2017)

Article Chemistry, Multidisciplinary

Design Principle and Loss Engineering for Photovoltaic-Electrolysis Cell System

Woo Je Chang et al.

ACS OMEGA (2017)

Article Nanoscience & Nanotechnology

Crystalline Copper Phosphide Nanosheets as an Efficient Janus Catalyst for Overall Water Splitting

Ali Han et al.

ACS APPLIED MATERIALS & INTERFACES (2017)

Article Nanoscience & Nanotechnology

Water Splitting with Series-Connected Polymer Solar Cells

Serkan Esiner et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

Article Chemistry, Multidisciplinary

Two-terminal DSSC/silicon tandem solar cells exceeding 18% efficiency

Jeong Kwon et al.

Energy & Environmental Science (2016)

Article Electrochemistry

Solar-to-Hydrogen Production at 14.2% Efficiency with Silicon Photovoltaics and Earth-Abundant Electrocatalysts

Jan-Willem Schuttauf et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2016)

Review Biochemistry & Molecular Biology

Photocatalytic Water SplittingThe Untamed Dream: A Review of Recent Advances

Tahereh Jafari et al.

MOLECULES (2016)

Review Green & Sustainable Science & Technology

Floating photovoltaic power plant: A review

Alok Sahu et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2016)

Article Energy & Fuels

Spontaneous solar water splitting by DSSC/CIGS tandem solar cells

Sang Youn Chae et al.

SOLAR ENERGY (2016)

Article Multidisciplinary Sciences

Upscaling of integrated photoelectrochemical water-splitting devices to large areas

Bugra Turan et al.

NATURE COMMUNICATIONS (2016)

Article Multidisciplinary Sciences

Hetero-type dual photoanodes for unbiased solar water splitting with extended light harvesting

Jin Hyun Kim et al.

NATURE COMMUNICATIONS (2016)

Article Multidisciplinary Sciences

Solar water splitting by photovoltaic-electrolysis with a solar-to-hydrogen efficiency over 30%

Jieyang Jia et al.

NATURE COMMUNICATIONS (2016)

Article Chemistry, Physical

Neutral Water Splitting Catalysis with a High FF Triple Junction Polymer Cell

Xavier Elias et al.

ACS CATALYSIS (2016)

Article Chemistry, Physical

Optimized light-driven electrochemical water splitting with tandem polymer solar cells

Serkan Esiner et al.

JOURNAL OF MATERIALS CHEMISTRY A (2016)

Article Multidisciplinary Sciences

Efficient solar-driven water splitting by nanocone BiVO4-perovskite tandem cells

Yongcai Qiu et al.

SCIENCE ADVANCES (2016)

Article Nanoscience & Nanotechnology

Highly Transparent Dual-Sensitized Titanium Dioxide Nanotube Arrays for Spontaneous Solar Water Splitting Tandem Configuration

Kahee Shin et al.

ACS APPLIED MATERIALS & INTERFACES (2015)

Review Chemistry, Multidisciplinary

Electrochemical Synthesis of Photoelectrodes and Catalysts for Use in Solar Water Splitting

Donghyeon Kang et al.

CHEMICAL REVIEWS (2015)

Review Chemistry, Multidisciplinary

Experimental demonstrations of spontaneous, solar-driven photoelectrochemical water splitting

Joel W. Ager et al.

ENERGY & ENVIRONMENTAL SCIENCE (2015)

Article Chemistry, Multidisciplinary

Nanoparticle Superlattices as Efficient Bifunctional Electrocatalysts for Water Splitting

Jun Li et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

Article Chemistry, Multidisciplinary

All Solution-Processed Lead Halide Perovskite-BiVO4 Tandem Assembly for Photolytic Solar Fuels Production

Yong-Siou Chen et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

Article Chemistry, Multidisciplinary

Perovskite-Hematite Tandem Cells for Efficient Overall Solar Driven Water Splitting

Gurudayal et al.

NANO LETTERS (2015)

Article Energy & Fuels

Application and modeling of an integrated amorphous silicon tandem based device for solar water splitting

Felix Urbain et al.

SOLAR ENERGY MATERIALS AND SOLAR CELLS (2015)

Article Chemistry, Physical

Transparent Cuprous Oxide Photocathode Enabling a Stacked Tandem Cell for Unbiased Water Splitting

Paula Dias et al.

ADVANCED ENERGY MATERIALS (2015)

Article Chemistry, Physical

Photoelectrochemical water splitting in an organic artificial leaf

Serkan Esiner et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

Article Chemistry, Physical

A perovskite solar cell-TiO2(aBiVO(4) photoelectrochemical system for direct solar water splitting

Xiaofan Zhang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

Article Chemistry, Multidisciplinary

Sustainable solar hydrogen production: from photoelectrochemical cells to PV-electrolyzers and back again

T. Jesper Jacobsson et al.

ENERGY & ENVIRONMENTAL SCIENCE (2014)

Article Chemistry, Physical

Pt-free tandem molecular photoelectrochemical cells for water splitting driven by visible light

Ke Fan et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2014)

Article Multidisciplinary Sciences

Exfoliation of layered double hydroxides for enhanced oxygen evolution catalysis

Fang Song et al.

NATURE COMMUNICATIONS (2014)

Article Chemistry, Multidisciplinary

Triple Junction Polymer Solar Cells for Photoelectrochemical Water Splitting

Serkan Esiner et al.

ADVANCED MATERIALS (2013)

Article Chemistry, Multidisciplinary

Charge carrier trapping, recombination and transfer in hematite (α-Fe2O3) water splitting photoanodes

Monica Barroso et al.

CHEMICAL SCIENCE (2013)

Review Chemistry, Physical

Z-Scheme Water Splitting Using Two Different Semiconductor Photocatalysts

Kazuhiko Maeda

ACS CATALYSIS (2013)

Article Optics

Highly efficient water splitting by a dual-absorber tandem cell

Jeremie Brillet et al.

NATURE PHOTONICS (2012)

Article Chemistry, Multidisciplinary

Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells

Akihiro Kojima et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2009)

Article Chemistry, Physical

All-solid-state Z-scheme in CdS-Au-TiO2 three-component nanojunction system

Hiroaki Tada et al.

NATURE MATERIALS (2006)