Crystallization management of CsPbI2Br perovskites by PbAc2-incorporated twice spin-coating process for efficient and stable CsPbI2Br perovskite solar cells

Journal of Energy Chemistry, Год журнала: 2024, Номер 97, С. 419 - 428

Опубликована: Май 31, 2024

Язык: Английский

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Stabilizing Lead Halide Perovskites via an Organometallic Chemical Bridge for Efficient and Stable Photovoltaics

ACS Nano, Год журнала: 2024, Номер unknown

Опубликована: Июль 17, 2024

Defects around the surface and grain boundaries of perovskite films normally cause severe nonradiative recombination imbalanced charge carrier transport, further limiting both efficiency stability solar cells (PSCs). To tackle this critical issue, we propose a chemical bridge strategy to reconstruct interface using organometallic molecules. The commercially available molecule bis(diphenylphosphino)ferrocene (FcP2), with unique molecular structure, anchors chelates Pb atoms by forming strong Pb-P bonds passivates surfaces boundaries. Detailed characterization revealed that FcP2 reconstruction can effectively suppress recombination, electron delocalization properties ferrocene core achieve more balanced interfacial transport. resultant N-i-P PSC device outputs close 25% together one best reported operational stabilities, maintaining over 95% initial after 1000 h continuous operation at maximum power point under 1-sun illumination.

Язык: Английский

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The path toward metal-halide perovskite industrialization

Cell Reports Physical Science, Год журнала: 2024, Номер 5(10), С. 102245 - 102245

Опубликована: Окт. 1, 2024

SummaryThe advent of metal-halide perovskite solar cells has revolutionized the field photovoltaics. The high power conversion efficiencies exceeding 26% at laboratory scale—mild temperature processing, possibility fabrication on multiple substrates, and easy composition-dependent band-gap tunability make perovskites suitable for both single-junction tandem-multijunction cells. They are attractive in various applications, from utility-scale to building-integrated indoor To bring maturity, next big step is funnel efforts into developing reproducible high-quality materials via high-throughput manufacturing, addressing issues inherent material instability. Another key issue environmental sustainability associated with presence lead. In this perspective, a special focus placed real-world applications photovoltaics, starting selection deposition techniques finally discussing stability how improve it toward wider industrialization.Graphical abstract

Язык: Английский

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Perovskite solar cells: Organic-based molecules for electron and hole transport materials with machine learning insights

Current Opinion in Colloid & Interface Science, Год журнала: 2024, Номер 74, С. 101848 - 101848

Опубликована: Авг. 31, 2024

Язык: Английский

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Efficient and Stable All-Inorganic Perovskite Solar Cells Prepared with ABX3-Like Precursors

Nano Energy, Год журнала: 2024, Номер unknown, С. 110396 - 110396

Опубликована: Окт. 1, 2024

Язык: Английский

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A Stepwise Melting‐Polymerizing Molecule for Hydrophobic Grain‐Scale Encapsulated Perovskite Solar Cell

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 13, 2024

Despite the ongoing increase in efficiency of perovskite solar cells, stability issues have been a significant hindrance to its commercialization. In response this challenge, stepwise melting-polymerizing molecule (SMPM) is designed as an additive into FAPbI

Язык: Английский

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Effect of BPFz on the Performance of Inorganic Perovskite Film and Solar Cells

Solar RRL, Год журнала: 2025, Номер unknown

Опубликована: Янв. 19, 2025

Inorganic perovskite exhibits an appropriate bandgap and excellent light thermal stability, making it ideal top‐cell material for silicon tandem solar cells. However, significant non‐radiative recombination losses due to surface defects in inorganic films, along with phase stability issues humid environments, restrict the efficiency improvement of inverted cells (IPSCs). This work reports preparation efficient, stable IPSCs by using a multifunctional molecule, bis (pentafluorophenyl) zinc (BPFz), as treatment CsPbI 2.85 Br 0.15 films. After BPFz, film undergoes secondary grain growth, significantly increasing size. Simultaneously, BPFz can passivate undercoordinated Pb 2+ , effectively suppressing nonradiative recombination. Additionally, fluorinated phenyl group endows superhydrophobic properties, protecting layer from influence environmental humidity, while also helping suppress ion diffusion within device, enhancing device stability. Ultimately, after increases 18.18 20.22%, V OC 1.169 1.231 V, moisture provides new approach development high‐efficiency future.

Язык: Английский

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Regulating the Crystallization Process of Intermediate Phase for Wide-Bandgap Perovskite Reduces Open-Circuit Voltage Deficit

ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 1321 - 1329

Опубликована: Фев. 19, 2025

Язык: Английский

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Synchronous Perovskite Crystallization Regulation and Buried Interface Modification Improve the Stability and Efficiency of a Planar Inorganic Perovskite Solar Cell

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 9, 2025

The numerous defects in inorganic perovskites and inferior buried interfaces result serious nonradiative recombination energy loss, exacerbating the deterioration of performance perovskite solar cells. Here, we develop a facile strategy to simultaneously improve CsPbIBr2 quality by regulating crystallization modify interface forming 6-aminonicotinic acid (6AA) molecular interlayer through adding 6AA into precursor solution. It is found that effectively regulates process because molecules exhibit strong intermolecular interaction with components, resulting compact film improved morphology decreased defects. Meanwhile, are pushed downward during accumulate at form interlayer, which improves contact enhances charge transport interface. improvement modification decrease loss. Consequently, fabricated planar carbon-based cell demonstrates an efficiency 10.97% remarkably promoted long-term stability.

Язык: Английский

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Methylammonium-Free Perovskite Photovoltaic Modules

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

For perovskite photovoltaic industrialization, it is essential to simultaneously achieve high conversion efficiency, long-term stability, and scalable fabrication of modules. Halide perovskites with the ABX3 structure are composed A-site monovalent cations, (e.g., formamidinium (FA+), methylammonium (MA+), Cs+), B-site divalent cations (predominantly Pb2+), X-site halide anions. Though incorporated MA can facilitate nucleation growth films, their volatility undermines thermal stability. α-FAPbI3 exhibits an optimal bandgap, but both α-CsPbI3 susceptible converting into nonphotoactive δ-phase at room temperature. However, FACsPbI3 alloy effectively counteracts imperfections in tolerance factor, enabling formation a room-temperature photoactive phase. Hence, development large-area, high-quality, MA-free films remains substantial challenge for efficient This review first discusses impact on phase stability structures subsequently examines film mechanism. Then, we summarize modules highlight advances CsPbX3 (Br–/I–), FAPbI3, FACsPbX3 systems. Finally, propose potential directions challenges toward industrialization.

Язык: Английский

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