Статья

Repairing Interfacial Defects in Self‐Assembled Monolayers for High‐Efficiency Perovskite Solar Cells and Organic Photovoltaics through the SAM@Pseudo‐Planar Monolayer Strategy

Chieh‐Ming HungDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanChi‐Chi WuDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanYu‐Hsuan YangDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanBo‐Han ChenInstitute of Photonics Technologies National Tsing Hua University Hsinchu 300044 TaiwanChih‐Hsuan LuInstitute of Photonics Technologies National Tsing Hua University Hsinchu 300044 TaiwanChe‐Chun ChuDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanChun‐Hao ChengDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanChun‐Yun YangDepartment of Fiber and Composite Materials Feng Chia University Taichung 407802 TaiwanYan‐Ding LinDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanC.K. ChengDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanJiann‐Yeu Cheni‐Center for Advanced Science and Technology (i‐CAST) and Innovation and Development Center of Sustainable Agriculture (IDCSA) National Chung Hsing University Taichung 402202 TaiwanI‐Chih NiGraduate Institute of Photonics and Optoelectronics National Taiwan University Taipei 106319 TaiwanChih‐I WuDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 TaiwanShang‐Da YangInstitute of Photonics Technologies National Tsing Hua University Hsinchu 300044 TaiwanHsieh‐Chih ChenDepartment of Chemistry Fu Jen Catholic University New Taipei City 242062 TaiwanPi‐Tai ChouDepartment of Chemistry Center for Emerging Materials and Advanced Devices National Taiwan University Taipei 106319 Taiwan

2024en

ABI

Аннотация

Lately, carbazole-based self-assembled monolayers (SAMs) are widely employed as effective hole-selective layers (HSLs) in inverted perovskite solar cells (PSCs). Nevertheless, these SAMs tend to aggregate in solvents due to their amphiphilic nature, hindering the formation of a monolayer on the ITO substrate and impeding effective passivation of deep defects in the perovskites. In this study, a series of new SAMs including DPA-B-PY, CBZ-B-PY, POZ-B-PY, POZ-PY, POZ-T-PY, and POZ-BT-PY are synthesized, which are employed as interfacial repairers and coated atop CNph SAM to form a robust CNph SAM@pseudo-planar monolayer as HSL in efficient inverted PSCs. The CNph SAM@pseudo-planar monolayer strategy enables a well-aligned interface with perovskites, synergistically promoting perovskite crystal growth, improving charge extraction/transport, and minimizing nonradiative interfacial recombination loss. As a result, the POZ-BT-PY-modified PSC realizes an impressively enhanced solar efficiency of up to 24.45% together with a fill factor of 82.63%. Furthermore, a wide bandgap PSC achieving over 19% efficiency. Upon treatment with the CNph SAM@pseudo-planar monolayer, also demonstrates a non-fullerene organic photovoltaics (OPVs) based on the PM6:BTP-eC9 blend, which achieves an efficiency of 17.07%. Importantly, these modified PSCs and OPVs all show remarkably improved stability under various testing conditions compared to their control counterparts.

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Идентификаторы

DOI: 10.1002/advs.202404725

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar