有机太阳能电池的表面复合：本征与掺杂有源层

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics Pub Date : 2025-02-01 DOI:10.1016/j.orgel.2024.107183

Gulnur Akhtanova , Hryhorii P. Parkhomenko , Joachim Vollbrecht , Andrii I. Mostovyi , Nora Schopp , Viktor Brus

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引用次数: 0

摘要

本研究扩展了具有本征活性体异质结层的有机太阳能电池表面复合的分析模型。考虑本禀活性层的多机制重组模型的关键发现是，即使在极高浓度的表面陷阱下，VOC与ln（光强度）的斜率也不能低于1.0 kT/q。我们揭示了在掺杂或本征活性层的多机制重组模型范围内确定的重组相关参数的差异，并强调了识别活性层材料掺杂水平的重要性。这是通过综合模拟和实验分析有机太阳能电池的供体：受体混合物：（PM6:Y6, PTB7-Th:COTIC-4F， PTB7-Th:O-IDTBR和PTB7-Th: tic - 4f）的协同作用证明的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Surface recombination in organic solar cells: Intrinsic vs. doped active layer

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Surface recombination in organic solar cells: Intrinsic vs. doped active layer

This study extends the analytical model of surface recombination in organic solar cells with an intrinsic active bulk-heterojunction layer. The key finding of the developed multi-mechanism recombination model accounting for the intrinsic active layer is that the slope of V_OC vs. ln(Light Intensity) cannot be lower than 1.0 kT/q even at the extremely high concentrations of surface traps. We revealed the difference in recombination-related parameters determined in the scope of the multi-mechanism recombination model for the doped or intrinsic active layer and highlighted the importance of identifying the doping level of the active layer material. This is demonstrated by a synergy of comprehensive simulation and experimental analysis of organic solar cells with donor: acceptor blends: (PM6:Y6, PTB7-Th:COTIC-4F, PTB7-Th:O-IDTBR and PTB7-Th:ITIC-4F).

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来源期刊

Organic Electronics 工程技术-材料科学：综合

CiteScore

6.60

自引率

6.20%

发文量

238

审稿时长

44 days

期刊介绍： Organic Electronics is a journal whose primary interdisciplinary focus is on materials and phenomena related to organic devices such as light emitting diodes, thin film transistors, photovoltaic cells, sensors, memories, etc. Papers suitable for publication in this journal cover such topics as photoconductive and electronic properties of organic materials, thin film structures and characterization in the context of organic devices, charge and exciton transport, organic electronic and optoelectronic devices.