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Article
Engineering, Electrical & Electronic
Abdelnaby M. M. Elshahawy et al.
Summary: This study developed an efficient surface engineering process to enhance the pseudocapacitive performance of rutile TiO2 nanorods. By establishing surface-engineered TiO2 nanorod arrays on carbon cloth, the researchers achieved high specific capacitance, excellent rate capability, and long cycle life.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Cheng Gong et al.
Summary: The interfacial defects and energy barrier are the main reasons for interfacial nonradiative recombination. Additionally, poor perovskite crystallization and incomplete conversion of PbI2 to perovskite limit the enhancement of photovoltaic performance in devices using sequential deposition. A strategy of buried interface stabilization, involving the synergy of fluorine (F) and sulfonyl (S=O) functional groups, is proposed. Chemical bonds including hydrogen, coordination, and ionic bonds are formed to enhance interfacial contact and defect passivation. The chemical interaction between modifier molecules and perovskite, as well as SnO2, increases with the augmentation of S=O and F groups, leading to improved defect passivation and crystallization kinetics.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jiahao Guo et al.
Summary: By regulating the electronic structure and utilizing 2-thiopheneformamidinium bromide (ThFABr) and 2D/3D polycrystalline perovskite film with a unique structure, an ultralong carrier lifetime and longer diffusion lengths are achieved, leading to a champion efficiency of 24.69%. This work has important implications for structured 2D/(2D/3D) perovskite films and FA-based spacers in achieving high-performance PSCs and other optoelectronic applications.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Shuai Yuan et al.
Summary: This study uses a home-built circuit-switched transient photoelectric technique to reveal the dominant role of organic cation migration in the hysteresis effect of perovskite solar cells. It proposes a method to suppress the hysteresis effect by inhibiting the migration of methylamine cations.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Environmental
Jin Huang et al.
Summary: In this work, a new organic additive 4-thioureidobenzoic acid (4-TBA) was introduced to improve the performance and stability of all-inorganic CsPbI3 perovskite solar cells (PSCs). The addition of 4-TBA reduced defect density, enhanced charge transfer, and improved film crystallinity. The optimized device showed an ultra-high power conversion efficiency of 20.26% and maintained 95.6% of its original efficiency after 1000 hours of stability testing.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jinpeng Wu et al.
Summary: Passivation of defects in perovskite solar cells using organic halide salts, particularly chlorides, is an effective method for improving power conversion efficiencies. However, the incorporation of chloride ions into the perovskite lattice can degrade the photovoltaic performance. In this study, we replace ionic chloride salts with atomic-Cl-containing organic molecules, which both retain efficient passivation and prevent chloride incorporation. By optimizing the molecular configuration, the resulting perovskite solar cells achieve a certified power conversion efficiency of 25.02% and maintain 90% of their initial efficiency after 500 hours of continuous operation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Multidisciplinary Sciences
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%.
Article
Materials Science, Multidisciplinary
Jinxia Duan et al.
Summary: In this study, one-dimensional TiO2 nanorod arrays were used as scaffolds in PeSCs, guiding the deposition of PbI2 and stabilizing the alpha-FAPbI(3) crystalline structure. Additionally, phenyl-ethylammonium iodide was used to passivate the surface defects of the perovskites to enhance device performance. The optimized alpha-FAPbI(3) PeSCs achieved a power conversion efficiency of up to 21.89% with weak hysteresis, and retained 94% of the initial efficiency after 800 hours of storage in a dark room at room temperature. The alpha-FAPbI(3) SCs based on TiO2 nanorod scaffolds can serve as a reference for the development of low-temperature perovskite optoelectronic devices.
ORGANIC ELECTRONICS
(2023)
Article
Chemistry, Physical
Xiaonan Huo et al.
Summary: In order to improve the thermal stability and reduce production costs of perovskite solar cells (PSCs), researchers are interested in hole transport layer (HTL)-free carbon-based CsPbI3 PSCs (C-PSCs). However, the PCE of HTL-free CsPbI3 C-PSCs is still lower than that of PSCs with HTL/ metal electrodes due to the requirements on crystal quality and energy level matching at the perovskite/carbon interface.
Article
Engineering, Environmental
Yuxuan Yang et al.
Summary: A nitrogen-donor crown ether is developed as a positive defect passivator in metal-halide perovskite solar cells, reducing the electron trap density and improving the build-in potential. The addition of a small amount of nitrogen-donor crown ether significantly enhances the efficiency and stability of the solar cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Bingjie Xu et al.
Summary: Efficient hole extraction in carbon-based perovskite solar cells is achieved by using inorganic p-type nickel oxide nanoparticles. This strategy improves the efficiency and reduces energy loss in these solar cells.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ranjana Verma et al.
Summary: The TiO2 polymorph at the phase interface achieves charge equilibration with Au nanoparticles, affecting band alignment through Fermi level shifting under selective UV and visible irradiation. Migration and separation of charges on the catalyst surface play a crucial role in optimizing photocatalyst efficiency. However, the formation of multiple junctions and presence of photogenerated charge carriers can negatively impact photocatalysis. The plasmonic Au nanoparticles embedded in rutile phase of TiO2 show opposing tendencies in photocatalysis under UV and visible irradiation, potentially due to photonic alignment of band edges between anatase and rutile interphase of TiO2 and Au nanoparticles. Understanding these behaviors highlights the mechanistic route for charge transfer properties of Au on TiO2 polymorphs.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Review
Chemistry, Applied
Yinhua Lv et al.
Summary: The unique advantages of one-dimensional (1D) oriented nanostructures in light-trapping and charge-transport make them competitive candidates in photovoltaic (PV) devices. Recent studies have achieved high-efficiency perovskite solar cells (PSCs) with 1D electron transport materials (ETMs) showing efficiency over 22%. However, the power conversion efficiencies (PCEs) of these devices have always significantly lagged behind their mesoscopic and planar counterparts. This review summarizes the advances in 1D ETMs-based solar cells and discusses the challenges and potential strategies to further boost device performance.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Mengfei Zhu et al.
Summary: This study demonstrates the doping of indium bromide (InBr3) into CsPbI2.5Br0.5-based all-inorganic perovskite materials, resulting in large crystalline grain sizes and tunable energy band levels. The use of screen-printable nanocarbon counter electrodes as a replacement for unstable organic hole-transport materials and expensive noble metal electrodes further enhances stability and reduces costs. The In-doped CsPbI2.5Br0.5-based all-inorganic perovskite solar cells achieve a champion PCE of 12.05% and favorable heat endurance, with 80% PCE retention after continuous heating at 100°C for over 1632 hours.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Sudhir Ranjan et al.
Summary: Low-temperature solution processed planar perovskite solar cells (PSCs) using MW-TiO2 as an ETL demonstrate improved efficiency, flexibility, and stability due to the reduced defects, enhanced conductivity, and alleviated strain.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qiyao Guo et al.
Summary: This study presents a dynamic healing interface (DHI) for highly efficient and stable perovskite solar cells (PSCs) by incorporating a low-melting-point small molecule onto the perovskite film surface. The solid-to-liquid phase conversion of DHI enhances charge extraction, passivates defects, and suppresses ion migration. Furthermore, the stability of PSCs is remarkably improved under various environmental conditions.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Abhishek Raj et al.
Summary: Titanium dioxide is widely used in perovskite solar cells, but its future applicability is hindered by high annealing temperature and the hysteresis effect. Recent strategies such as doping engineering have significantly improved the device performance and stability.
Article
Energy & Fuels
Zhixing Wu et al.
Summary: In this study, a simultaneous defect passivation method using ethylene diamine tetra acetic acid disodium magnesium (EDTADM) was proposed to enhance the efficiency and stability of perovskite solar cells (PSCs). EDTADM can effectively modify the electron transport layer and perovskite film, and passivate the interfaces through coordination interactions. It also suppresses hysteresis effectively.
Review
Chemistry, Multidisciplinary
Ibrahim M. Maafa
Summary: Organic-inorganic hybrid perovskite solar cells suffer from stability issues, but all-inorganic perovskite solar cells are promising candidates to overcome these problems. The performance of all-inorganic perovskite solar cells has been continuously improved, but challenges such as stability and energy loss remain.
Article
Nanoscience & Nanotechnology
Haiyue Dong et al.
Summary: Modification of charge transport layers is an effective method to enhance the performance of perovskite solar cells. The use of low-cost, water-soluble nonionic polymer polyacrylamide (PAM) to modify SnO2 improves the uniformity, wettability, and electron mobility of the film. This modification reduces defects in the perovskite film, increases the grain size, and improves energy-level alignment, leading to improved electron transfer. The power conversion efficiency of the modified SnO2-based PSCs is enhanced to 22.59%, and the devices retain 90% of their initial value after more than 1000 hours of storage under 50% relative humidity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Chang Liu et al.
Summary: In this study, fluoride is used as a passivation agent to reduce defects on both the TiO2 surface and the bottom surface of the perovskite layer, thereby improving the efficiency and stability of PSCs.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Zhimin Xu et al.
Summary: This study successfully prepared vertical-oriented Cs-doped rutile TiO2 nanorod arrays and achieved high-efficiency carbon-based all-inorganic perovskite solar cells without hole-transport materials through energy level calibration engineering.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yuanjia Ding et al.
Summary: Among inorganic perovskites, CsPbI2Br shows great potential for single-junction perovskite solar cells (PSCs) and perovskite/organic tandem solar cells (TSCs) due to its intrinsic thermal stability, suitable bandgap, and superior phase-stability. This study demonstrates that using PTQ10 as a hole transport layer (HTL) for PSCs and an inter-connecting layer (ICL) for TSCs can significantly improve the power conversion efficiencies (PCEs) of CsPbI2Br-based devices. The PTQ10 HTL exhibits better energy level matching with CsPbI2Br and can passivate the perovskite surface, leading to enhanced performance in both PSCs and TSCs.
Review
Chemistry, Physical
Jing Song et al.
Summary: This progress report summarizes the preparation process and key technologies of CsPbI2Br PSCs, highlighting their important applications in solar cells and future development. The challenges and outlook of CsPbI2Br PSCs are also discussed.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Physical
Ali Hassan et al.
Summary: Hybrid lead halide perovskite photovoltaics have surpassed thin-film solar cells in terms of efficiency within a decade. However, defects related to undercoordinated ions, band offsets, grain boundaries, photocurrent hysteresis, and environmental instability have hindered the industrialization of perovskite photovoltaics. This comprehensive review provides insights into the nature, source, correlation, and effects of these defects, as well as strategies for defect passivation. Suggestions for next-generation perovskite solar cells are also recommended.
Article
Materials Science, Multidisciplinary
Hawraa Sabah Hreo et al.
Summary: In this study, the synthesis of bismuth (III) sulphide (Bi2S3)-sensitized titanium dioxide nanotubes arrays (TiO2 NTAs) using the SILAR method was investigated. The results showed that increasing the number of cycles significantly improved the photoelectrochemical performance of Bi2S3/TiO2 NTAs, resulting in higher photocurrent density. After three cycles of deposition, the Bi2S3-3Cy/TiO2 NTAs exhibited the best photoelectrochemical characteristics.
BULLETIN OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Koucheng Chen et al.
Summary: Ce-doped TiO2 nanorod arrays were fabricated using a one-pot hydrothermal method for enhancing the performance of perovskite solar cells. Ce doping successfully reduced the diameter of TiO2 nanorods, increased absorption of ultraviolet light, and improved the efficiency and stability of the devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Martin Green et al.
Summary: This article presents consolidated tables showing the highest independently confirmed efficiencies for solar cells and modules, including guidelines for inclusion of results and reviewing new entries since June 2020. It also includes charts showing efficiency improvements since 1993 and an updated list of recognized test centers.
PROGRESS IN PHOTOVOLTAICS
(2021)
Article
Multidisciplinary Sciences
Jason J. Yoo et al.
Summary: Metal halide perovskite solar cells have shown great potential to disrupt the silicon solar cell market with their improved performance, yet still face limitations in light-harvesting due to charge carrier recombination. Efforts to enhance charge carrier management offer a path to increase device performance and approach the theoretical efficiency limit of PSCs.
Article
Chemistry, Multidisciplinary
Pengyun Liu et al.
Summary: The use of antimony acetate as an additive in the engineering strategy can enhance the photovoltaic performance of methylammonium lead iodide-based perovskite solar cells, with a power conversion efficiency of above 21% achieved. Antimony acetate plays a role in improving film morphology and optimizing the electronic structure of perovskites, leading to improved stability of the solar cells.
Article
Chemistry, Physical
Ke Wang et al.
Summary: This study successfully enhanced the photovoltaic performance of CsPbI2.25Br0.75 perovskite solar cells by using TiO2 nanorod arrays and cesium acetate modification at the interface of the electron transport layer. The optimization efficiency of the device reached a record-breaking level, emphasizing the critical importance of interface engineering.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Laura Canil et al.
Summary: Controlling the energy levels in semiconductors is crucial for optoelectronic applications. This study successfully tuned the work function of halide perovskite semiconductors using self-assembled monolayers of small molecules, demonstrating a versatile approach to adjust energy level alignment at the interface for perovskite-based optoelectronics.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Multidisciplinary Sciences
Zhenyi Ni et al.
Article
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Xueke Li et al.
Article
Thermodynamics
Q. Guo et al.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2020)
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Weidong Zhu et al.
Editorial Material
Multidisciplinary Sciences
Zhimin Fang et al.
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Yuxiao Guo et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
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Siraj Sidhik et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
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Ming-Chung Wu et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
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Shulin Chen et al.
NATURE COMMUNICATIONS
(2018)
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Bingxin Zhao et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
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Ayan A. Zhumekenov et al.
ACS ENERGY LETTERS
(2017)
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Akihiro Kojima et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2009)
