Synergistic modification of benzimidazole and bromohexyl for highly efficient and stable perovskite solar cells

Article Chemistry, Multidisciplinary

Multi-Level Passivation of MAPbI3 Perovskite for Efficient and Stable Photovoltaics

Ning Wei et al.

Summary: The introduction of a new functional ionic liquid has improved the photovoltaic performance and long-term stability of perovskite solar cells.

ADVANCED FUNCTIONAL MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Synergistic Effects of Multifunctional Lanthanides Doped CsPbBrCl2 Quantum Dots for Efficient and Stable MAPbI3 Perovskite Solar Cells

Xinmeng Zhuang et al.

Summary: This study introduces lanthanide-doped CsPbBrCl2 PQDs into PSCs for the first time, demonstrating the synergistic effect of composition engineering and defect engineering. The introduction of CsPbBrCl2:Ln(3+) improves the crystallinity and passivates the defects in the MAPbI(3) layer, resulting in enhanced performance of PSCs.

ADVANCED FUNCTIONAL MATERIALS (2022)

Add to Collection

Article Engineering, Environmental

Hydrophobic π-conjugated organic small molecule as a multi-functional interface material enables efficient and stable perovskite solar cells

Runtao Wang et al.

Summary: The novel pyrene-based organic material TAAPyr is introduced as a defect passivation layer and a protect layer against moisture for perovskite solar cells (PSCs) application, effectively decreasing surface defects and nonradiative recombination while enhancing carrier transport and power conversion efficiencies. The multi-functional pi-conjugated passivator TAAPyr shows potential in improving efficiency and stability of PSCs by promoting intermolecular face-to-face stacking and making the perovskite surface more hydrophobic.

CHEMICAL ENGINEERING JOURNAL (2022)

Add to Collection

Article Multidisciplinary Sciences

Conformal quantum dot-SnO2 layers as electron transporters for efficient perovskite solar cells

Minjin Kim et al.

Summary: The study replaced the commonly used mesoporous titanium dioxide electron transport layer with a thin layer of polyacrylic acid-stabilized tin(IV) oxide quantum dots, which improved the efficiency and stability of perovskite solar cells and enabled successful scaling up of PSCs production.

SCIENCE (2022)

Add to Collection

Article Chemistry, Physical

Engineering the Hole Extraction Interface Enables Single-Crystal MAPbI3 Perovskite Solar Cells with Efficiency Exceeding 22% and Superior Indoor Response

Ning Li et al.

Summary: In this study, hydrophobic P3HT molecules were successfully incorporated into the hole transport layer of perovskite single crystals, resulting in reduced interface and bulk defect density, suppressed nonradiative recombination, accelerated charge transport, and extraction. This led to a significantly enhanced open-circuit voltage and efficiency, making it the highest values achieved for MAPbI(3) single-crystal solar cells. Additionally, the incorporation of P3HT resulted in superior weak light response and an indoor photovoltaic efficiency of 39.2% at 1000 lux irradiation.

ADVANCED ENERGY MATERIALS (2022)

Add to Collection

Article Engineering, Environmental

Interface modification to achieve high-efficiency and stable perovskite solar cells

Yinghui Wu et al.

Summary: Organic-inorganic hybrid perovskite solar cells have achieved relatively high power conversion efficiencies in recent years. However, defects in the perovskite layers are critical to the performance of the devices. By passivating the interface defects, the efficiency and stability of the perovskite solar cells can be significantly improved.

CHEMICAL ENGINEERING JOURNAL (2022)

Add to Collection

Article Engineering, Environmental

A holistic sunscreen interface strategy to effectively improve the performance of perovskite solar cells and prevent lead leakage

Yanqiang Hu et al.

Summary: By utilizing a holistic interface modification strategy, the performance and stability of perovskite solar cells (PSCs) can be effectively improved while preventing lead leakage.

CHEMICAL ENGINEERING JOURNAL (2022)

Add to Collection

Article Multidisciplinary Sciences

Stability-limiting heterointerfaces of perovskite photovoltaics

Shaun Tan et al.

Summary: Optoelectronic devices rely on heterointerfaces between different semiconducting materials, and the energy-level alignment between them plays a crucial role in device performance. Surface treatments for perovskite solar cells can impact the energetics of the heterointerface, potentially affecting device stability. Balancing the pros and cons of surface treatments is essential for improving PSC stability.

NATURE (2022)

Add to Collection

Article Chemistry, Physical

Cross-linkable molecule in spatial dimension boosting water-stable and high-efficiency perovskite solar cells

Jiachen Xi et al.

Summary: The researchers designed and synthesized a cross-linkable molecule PETA-G to solve the issue of perovskite film degradation caused by high trap densities and moisture invasion. By combining guanidine and tri-acrylate groups, a compact network structure was formed, significantly improving the moisture resistance of the perovskite film while maintaining charge transport.

NANO ENERGY (2022)

Add to Collection

Article Chemistry, Physical

Over 24% efficient MA-free CsxFA1-xPbX3 perovskite solar cells

Siyang Wang et al.

Summary: In this study, CsFA films with high quality were fabricated using innovative morphology engineering method, which combines solution deposition and vacuum evaporation. The CsFA-based perovskite solar cells demonstrated excellent thermal stability and high power conversion efficiency, making them a promising candidate for applications in solar energy conversion.

JOULE (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Self-Organized Small Molecules in Robust MOFs for High-Performance Perovskite Solar Cells with Enhanced Degradation Activation Energy

Jiaqi Wang et al.

Summary: A brand new strategy of using metal-organic frameworks (MOFs) to improve the volatility and arrangement of small organic molecule additives in perovskite solar cells is proposed. The MOFs help produce superior perovskite films with enhanced stability and efficiency.

ADVANCED FUNCTIONAL MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Light Management through Organic Bulk Heterojunction and Carrier Interfacial Engineering for Perovskite Solar Cells with 23.5% Efficiency

Zhichong Shi et al.

Summary: By introducing BPQDs and CuOx, the carrier extraction issues of IPSCs were successfully solved, leading to an extended spectral response range and reduced V-oc and FF losses. The optimized device demonstrated high efficiency and long-term stability.

ADVANCED FUNCTIONAL MATERIALS (2022)

Add to Collection

Article Chemistry, Physical

Para-halogenated triphenyltriazine induced surface passivation toward efficient and stable perovskite solar cells

Linxing Shi et al.

Summary: Surface passivation is an effective method to improve the efficiency and stability of perovskite solar cells. In this study, the researchers introduced a compound called TRZ-X to modify the perovskite absorbers. The unique structure and properties of TRZ-X effectively reduced the defect density of the perovskite film and prevented moisture penetration, resulting in improved power conversion efficiency and long-term stability of the devices.

APPLIED SURFACE SCIENCE (2022)

Add to Collection

Article Multidisciplinary Sciences

Inactive (PbI2)2RbCl stabilizes perovskite films for efficient solar cells

Yang Zhao et al.

Summary: In halide perovskite solar cells, introducing RbCl doping effectively stabilizes the perovskite phase by converting excess PbI2 into an inactive compound. This strategy achieved a certified PCE of 25.6% for FAPbI(3) perovskite solar cells, with high device stability and minimal hysteresis effects.

SCIENCE (2022)

Add to Collection

Article Multidisciplinary Sciences

Ion-modulated radical doping of spiro-OMeTAD for more efficient and stable perovskite solar cells

Tiankai Zhang et al.

Summary: This study proposes a new doping strategy for perovskite solar cells, using stable organic radicals as dopants and ionic salts as doping modulators. The strategy improves the performance and stability of the devices and could inspire further optimization in other optoelectronic devices.

SCIENCE (2022)

Add to Collection

Article Chemistry, Physical

Stable 24.29%-Efficiency FA0.85MA0.15PbI3 Perovskite Solar Cells Enabled by Methyl Haloacetate-Lead Dimer Complex

Sheng Zhan et al.

Summary: In this study, a bifunctional passivator, MBrA, was designed and used to modify FAMAPbI(3) perovskite material, reducing defect density, tuning energy levels, and improving the efficiency and stability of the solar cell.

ADVANCED ENERGY MATERIALS (2022)

Add to Collection

Article Multidisciplinary Sciences

Nanoscale localized contacts for high fill factors in polymer-passivated perovskite solar cells

Jun Peng et al.

Summary: This research introduces a nanopatterned electron transport layer that overcomes the trade-off between passivation quality and series resistance in traditional polymer passivation layers. Combining the nanopatterned electron transport layer with a dopant-free hole transport layer improves the efficiency and stability of perovskite solar cells.

SCIENCE (2021)

Add to Collection

Article Chemistry, Physical

Direct Observation on p- to n-Type Transformation of Perovskite Surface Region during Defect Passivation Driving High Photovoltaic Efficiency

Shaobing Xiong et al.

Summary: The use of natural additive capsaicin in perovskite solar cells leads to defect passivation and transformation of surface energetics, resulting in improved charge transport, efficiency, and stability. This approach shows potential for significant enhancement of PSC performance.

JOULE (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Benefitting from Synergistic Effect of Anion and Cation in Antimony Acetate for Stable CH3NH3PbI3-Based Perovskite Solar Cell with Efficiency Beyond 21%

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.

SMALL (2021)

Add to Collection

Article Chemistry, Physical

Near field control for enhanced photovoltaic performance and photostability in perovskite solar cells

Mohammad Ismail Hossain et al.

Summary: The study presents a photon management strategy for perovskite solar cells (PSCs) that is compatible with tandem and flexible PSCs. By rigorously validating through numerical modeling and analyzing the effects, the research aims to optimize device performance and enhance electrical characteristics for higher efficiency.

NANO ENERGY (2021)

Add to Collection

Article Chemistry, Physical

MAAc Ionic Liquid-Assisted Defect Passivation for Efficient and Stable CsPbIBr2 Perovskite Solar Cells

Linxing Shi et al.

Summary: Precoating a methylammonium acetate (MAAc) ionic liquid onto a TiO2 layer before depositing CsPbIBr2 film improves the crystal quality and interface contact, reduces defects, suppresses nonradiative recombination, and enhances the photovoltaic conversion efficiency.

ACS APPLIED ENERGY MATERIALS (2021)

Add to Collection

Article Multidisciplinary Sciences

Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells

Jaeki Jeong et al.

Summary: The research introduces a new concept of using formate anion to suppress defects in metal halide perovskite films and enhance film crystallinity, leading to improved efficiency and stability of solar cells.

NATURE (2021)

Add to Collection

Article Nanoscience & Nanotechnology

Water-Repellent Perovskites Induced by a Blend of Organic Halide Salts for Efficient and Stable Solar Cells

Yuanyuan Zhang et al.

Summary: This study improved the long-term stability and power conversion efficiency of perovskite solar cells by blending organic halide salts with perovskite materials. The hydrophobic aromatic PEA(+) group in PEAX protects the perovskite film from destruction by water, leading to excellent water resistance. The PEAX-decorated PeSCs exhibited remarkable long-term stability under high-humidity conditions and enhanced power conversion efficiency compared to pristine devices.

ACS APPLIED MATERIALS & INTERFACES (2021)

Add to Collection

Article Multidisciplinary Sciences

Atomic-scale imaging of CH3NH3PbI3 structure and its decomposition pathway

Shulin Chen et al.

Summary: This study investigates the atomic structure and decomposition pathway of organic-inorganic hybrid perovskites, revealing a two-step decomposition process and an intermediate phase. The findings enhance understanding of the photoelectric properties and failure mechanism, offering insights into prevention and recovery of perovskite structure.

NATURE COMMUNICATIONS (2021)

Add to Collection

Article Engineering, Environmental

Fluorinated Cross-linkable and Dopant-free hole transporting materials for efficient and stable perovskite solar cells

Jianchang Wu et al.

Summary: Two novel hole transporting materials with thermally cross-linkable styryl groups were developed for perovskite solar cells, enabling in situ cross-linking and smooth, solvent-resistant film formation. The fluorination approach enhanced interactions between HTM, formamidine, and lead in perovskite, leading to improved efficiency and stability, with HTM-F showing higher power conversion efficiency and better retention of initial performance after prolonged exposure to air and heat compared to the fluorine-free HTM-H.

CHEMICAL ENGINEERING JOURNAL (2021)

Add to Collection

Review Chemistry, Physical