Hypophosphorous Acid Additive Engineering for Efficient Cu₂AgBiI₆ Solar Cells

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract Perovskite solar cells have demonstrated significant performance advancements over the past decade, characterized by their low‐cost fabrication and compatibility with both rigid flexible substrates. Despite potential, challenges such as long‐term instability toxicity of lead in high‐performance devices hinder commercialization. Recently, perovskite‐inspired material Cu 2 AgBiI 6 (CABI) is explored a light absorber due to its promising optoelectronic properties. However, wide bandgap difficulties producing high‐quality films limit photovoltaic performance. In this study, hypophosphorous acid (H 3 PO ) introduced CABI precursor solution, generating situ silver nanoparticles that enhance absorption through localized surface plasmon resonance. The incorporation H improved crystallinity morphology while reducing defect states. Solvent vapor annealing further employed optimize film quality. As result, optimal cell achieved power conversion efficiency 2.22%, fourfold increase pristine (0.55%). Additionally, device an 5.66% under 1000 lux 6000 K indoor illumination, showcasing potential for powering Internet Things devices. This strategy validated CuAgBiI 5 system, offering pathway cells.

Language: Английский

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Highly Efficient and Stable Perovskite Solar Cells via a Multifunctional Curcumin-Modified Buried Interface

ACS Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Language: Английский

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Dual-stage Crystallization Regulation for Efficient and Stable Perovskite Solar Cells

Materials Today Energy, Journal Year: 2025, Volume and Issue: unknown, P. 101836 - 101836

Published: Feb. 1, 2025

Language: Английский

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Novel quantitative valuation of hybrid perovskite solar cells

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 13, 2025

As an emerging photovoltaic technology, hybrid perovskite solar cells (PSCs) have achieved excellent performance through rapid development in recent years. High power conversion efficiency (PCE) and stability further promote the commercialization of PSCs. To date, light-harvesting active materials are diversified device fabrication process is also various. Considered costs steps PSCs based on different materials, quantitative valuation with PCE above 20% implemented using data envelopment analysis (DEA) for first time. This mainly focuses inputs (cost steps) outputs (PCE stability). No weights needed during whole analytical process. ensures convenience ease operation analysis, promoting universality this method. The results show a detailed from economic perspective develop new way to evaluate Meanwhile, novel method will provide promising guidance

Language: Английский

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Regulating perovskite/PCBM interface for highly efficient and stable inverted perovskite solar cells

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161237 - 161237

Published: March 1, 2025

Language: Английский

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Asymmetrical A-DA′D-A–type electron transport materials with enhanced electron mobility and water-resistant interface for perovskite solar cells

Solar Energy, Journal Year: 2025, Volume and Issue: 291, P. 113409 - 113409

Published: March 9, 2025

Language: Английский

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Cyanovinyl Phosphonic Acid Based Molecular Additives for Highly Efficient and Stable Formamidinium‐Cesium Lead Lodide Perovskite Solar Cells

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Abstract Formamidinium‐cesium lead iodide perovskites (FA 1‐x Cs x PbI 3 , 0 < 0.1) are promising solar cell absorber materials with favorable bandgap and high thermal stability. However, the fabrication of high‐quality FA films large grain size, stable black phase, uniform cations distribution, minimal defects remains challenging. Here, efficacy cyanovinyl phosphonic acid (CPA) based molecular additives in fabricating 0.95 0.05 is reported. The CPA unit shows strong interactions all species (PbI 2 ), formamidinium (FAI), cesium (CsI) precursor solution, thus significantly alleviating inhomogeneous crystallization this mixed‐cation system. resulting exhibit enlarged size homogenized cation presence CPA‐based molecules final perovskite enhances optoelectronic qualities photostability owing to efficient passivation interaction perovskite. With optimizations on adding concentrations, inverted structured cells an optimal additive (Ph‐CPA) achieve power conversion efficiencies (PCEs) up 26.25%. Moreover, lifespans (T90, time corresponding 90% initial PCE retained) devices unprecedentedly prolonged from hundreds hours over 1000 3000 h under light stresses (ISOS‐L‐2I, 85 °C) operational condition (ISOS‐L‐1I), respectively.

Language: Английский

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Grains > 2 µm with Regulating Grain Boundaries for Efficient Wide‐Bandgap Perovskite and All‐Perovskite Tandem Solar Cells

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Abstract Tandem perovskite solar cells represent a significant avenue for the future development of photovoltaics. Despite their promise, wide‐bandgap perovskites, essential constructing efficient tandem structures, have encountered formidable challenges. Notably, high bromine content (>40%) in these 1.78 eV bandgap perovskites triggers rapid crystallization, complicating control grain boundary growth and leading to films with smaller sizes higher defect density than those narrower bandgaps. To address this, potassium tetrakis(pentafluorophenyl)borate molecules are incorporated into antisolvent, employing crystallographic orientation‐tailored strategy optimize growth, thereby achieving grains exceeding 2 µm effectively eliminating surplus lead halide defects at boundaries. As result, remarkable efficiency is achieved single‐junction devices, power conversion (PCE) 20.7%, all‐perovskite two‐terminal PCE 28.3% four‐terminal 29.1%, which all rank among highest reported values literature. Moreover, stability devices has been markedly improved. These findings offer novel perspective driving further advancements cell domain.

Language: Английский

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Vertically oriented micron-thick perovskite film enables efficient and stable inverted perovskite solar cells

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161966 - 161966

Published: March 1, 2025

Language: Английский

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Scalable Impregnation Method for Preparing a Self-Assembled Monolayer in High-Performance Vapor-Deposited Lead-Halide Perovskite Solar Cells

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

The power conversion efficiency (PCE) of inverted lead-halide perovskite solar cells (PSCs) via vapor deposition has undergone significant enhancement through the incorporation a self-assembled monolayer (SAM) serving as hole transport layer. To achieve high-performance PSCs, SAM layer needs to maintain dense and high-coverage configuration during fabrication process. Our investigation revealed that solid-vapor reaction, conditions high temperature low pressure can potentially lead migration molecules, particularly those adsorbed on surface but have not yet formed covalent bonds. In this study, overcome limitation, we developed an impregnation process for mixed molecules with (4-(7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid (4PADCB) glycine hydrochloride (GH), which reduces agglomeration enhances their strong anchoring ability substrate, thereby maintaining extremely coverage rate even in high-temperature low-pressure environment reactions. Consequently, champion efficiencies 22.15% (0.16 cm2) 19.18% (5 cm × 5 module) are achieved, is highest record PSCs based deposition. Moreover, advantages reusability, good uniformity, cost, very broad commercial prospects.

Language: Английский

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