Co‐Adsorbent Boosting the Performance of Perovskite Solar Cell Based on Hole‐Selective Self‐Assembled Molecules

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

Published: Feb. 3, 2025

Abstract The inverted perovskite solar cells based on hole‐selective self‐assembled molecules (SAMs) have been setting new efficiency benchmarks. However, the agglomeration of SAM and lack defect passivation ability are two critical issues that need to be addressed. It is demonstrated by blending co‐adsorbent 4‐phosphoricbutyl ammonium iodide (4PBAI) with 4‐(7H‐dibenzo[c,g]carbazole‐7‐yl) phosphonic acid (4PADCB), enhanced homogeneity, conductivity, better energy levels can realized for co‐SAM contact. functional group 4PBAI also effectively passivate defects at buried interface template high‐quality growth. Assisted synergistic top modification, power conversion optimized device reaches 24.96%, which retain 95% initial after 1200 h in ambient unencapsulated device. findings suggest a well‐designed address limitations further enhance performance cutting‐edge SAMs.

Language: Английский

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Dual functionality of charge extraction and interface passivation by self-assembled monolayers in perovskite solar cells

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 6974 - 7016

Published: Jan. 1, 2024

This review overviews the challenges at buried interface of PSCs, defect passivation capabilities SAMs, and its effectiveness compared to other passivating agents.

Language: Английский

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Research Progress of Self-assembled Hole-transporting Monolayers in Inverted Perovskite Solar Cells

Acta Chimica Sinica, Journal Year: 2024, Volume and Issue: 82(3), P. 348 - 348

Published: Jan. 1, 2024

Language: Английский

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Anchorable Polymers Enabling Ultra‐Thin and Robust Hole‐Transporting Layers for High‐Efficiency Inverted Perovskite Solar Cells

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Abstract Currently, the development of polymeric hole‐transporting materials (HTMs) lags behind that small‐molecule HTMs in inverted perovskite solar cells (PSCs). A critical challenge is conventional are incapable forming ultra‐thin and conformal coatings like self‐assembly monolayers (SAMs), especially for substrates with rough surface morphology. Herein, we address this by designing anchorable (CP1 to CP5). Specifically, coordinative pyridyl groups introduced as side‐chains on poly‐triarylamine (PTAA) backbone varied contents copolymerization method, resulting chemical interactions between substrates. The strong interaction allows them be processed into ultra‐thin, uniform, robust layers through employing low‐concentration solutions (0.1 mg mL −1 , vs. 2.0–5.0 PTAA), greatly decreasing charge transport losses. Moreover, upon systematically tuning substitution ratio, energy levels, wetting, solution processability, defect passivation capability such simultaneously optimized. Based optimal CP4, achieved highly efficient PSCs power conversion efficiencies (PCEs) up 26.21 %, which par state‐of‐the‐art SAM‐based PSCs. Furthermore, these devices exhibit enhanced stabilities under repeated current–voltage scans reverse bias ageing compared devices.

Language: Английский

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Structural divergence of molecular hole selective materials for viable p-i-n perovskite photovoltaics: a comprehensive review

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(22), P. 12983 - 13058

Published: Jan. 1, 2024

This review focuses on deciphering the structural divergence of organic molecular hole selective materials in determining photovoltaic performance and stability p-i-n type perovskite solar cell devices.

Language: Английский

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Tetrapodal Hole‐Collecting Monolayer Materials Based on Saddle‐Like Cyclooctatetraene Core for Inverted Perovskite Solar Cells

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(46)

Published: Aug. 8, 2024

Abstract Hole‐collecting monolayers have greatly advanced the development of positive‐intrinsic‐negative perovskite solar cells (p‐i‐n PSCs). To date, however, most anchoring groups in reported monolayer materials are designed to bind transparent conductive oxide (TCO) surface, resulting less availability for other functions such as tuning wettability surface. In this work, we developed two anchorable molecules, 4PATTI‐C3 and 4PATTI‐C4 , by employing a saddle‐like indole‐fused cyclooctatetraene π‐core with four phosphonic acid linked through propyl or butyl chains. Both molecules form on TCO substrates. Thanks saddle shape skeleton, were found point upward, hydrophilic surfaces. Compared devices using hole‐collecting monolayer, ‐based exhibit faster hole‐collection process, leading higher power conversion efficiencies up 21.7 % 21.4 mini‐cell (0.1 cm 2 ) mini‐module (1.62 ), respectively, together good operational stability. This work represents how structural modification multipodal could substantially modulate after being adsorbed onto

Language: Английский

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Controlled NiO_x Defect Engineering to Harnessing Redox Reactions in Perovskite Photovoltaic Cells via Atomic Layer Deposition

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(24), P. 31114 - 31125

Published: June 10, 2024

Albeit the undesirable attributes of NiOx, such as low conductivity, unmanageable defects, and redox reactions occurring at perovskite/NiOx interface, which impede progress in inverted perovskite solar cells (i-PSCs), it is most favorable choice technology for industrialization PSCs. In this study, we propose a novel Ni vacancy defect modulate approach to leverage conformal growth surface self-limiting reaction characteristics atomic layer deposition (ALD)-fabricated NiOx by varying O2 plasma injection time (tOE) induce self-doping. Consequently, thin films with enhanced an appropriate Ni3+/Ni2+ ratio, stable states, ultrathinness are realized hole-transporting layers (HTLs) p-i-n As result these improvements, ALD-NiOx-based devices exhibit highest power conversion efficiency (PCE) 19.86% fill factor (FF) 81.86%. Notably, optimal interfacial defects effectively suppressed severe between NiOx. This suppression evidenced lowest decay rate observed harsh environment, lasting 500 consecutive hours. The proposed introduces possibility hierarchical distribution offers feasibility fabrication large-area, uniform, high-quality films.

Language: Английский

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Ultrafast hole transfer mediated by a conjugated self-assembled molecule enables efficient and stable wide-bandgap perovskite solar cells

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154722 - 154722

Published: Aug. 10, 2024

Language: Английский

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Improving Buried Interface Contact for Inverted Perovskite Solar Cells via Dual Modification Strategy

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Abstract The non‐wetting issue of the self‐assembled monolayer (SAM) layer can complicate subsequent perovskite deposition and impact device efficiency. This study addresses this challenge using a dual approach involving co‐self‐assembly buffer to enhance wettability interfacial contact buried film. A weakly acidic boronic acid derivative, 4‐N, N‐dimethylbenzeneboronic hydrochloride (4NPBA), is used co‐self‐assemble with regular SAM molecule on ITO FAI further increased film coverage 89%. interface strategy—SAM‐4NPBA/FAI—results in flat dense interface. optimized demonstrates high fill factor 88.35%, power conversion efficiency 25.29%, retains over 99% its initial after 500 h maximum point testing.

Language: Английский

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Toward Maximizing Hole Selection with Self-Assembled Monolayers in Sn-Based Perovskite Solar Cells

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1292 - 1312

Published: Feb. 17, 2025

Language: Английский

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