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高发光的三基衍生3D架构的非富勒伦受体使得有机太阳能电池的效率达到20.26%

Haotian Wu¹, Wenzheng Zhang², Kai Xiang¹

¹Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education. School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.

Angewandte Chemie (International ed. in English)

|December 12, 2025

概括

在窄带间非富勒烯受体 (NFAs) 中开发高光发光量子产量 (PLQY) 是高效有机太阳能电池 (OSC) 的关键. 这项研究介绍了TQX-IC,一种具有3D替代物的新型Y-NFA,实现高PLQY并显著减少非辐射能量损失,以提高OSC性能.

科学领域:

材料科学材料科学材料科学
有机电子有机电子
太阳能光伏发电是如何实现的

背景情况:

开发具有高光发光量子产率 (PLQY) 的窄带隙非富勒烯受体 (NFAs) 对于减少有机太阳能电池 (OSC) 的非辐射能量损失至关重要.
聚合引起的火 (ACQ) 通常限制了NFA中的PLQY,阻碍了功率转换效率 (PCE).

研究的目的:

设计和合成一种新型Y系列NFA (TQX-IC),其中包含一种三基衍生替代剂,以增强PLQY并抑制ACQ.
调查新NFA对二进制和三进制有机太阳能电池 (OSC) 性能的影响.

主要方法:

一种新型Y-NFA (TQX-IC) 的合成,采用3D架构,高度发光的三替代物.
描述TQX-IC的光物理特性,包括PLQY和聚合行为.
使用TQX-IC的二进制和三进制OSC的制造和性能评估,并将其与对照NFA (Me-Y) 进行比较.

主要成果:

与Me-Y (0.209 eV) 相比,TQX-IC表现出高的PLQY12.80%,抑制了ACQ,并实现了明显较低的非辐射能量损失 (0.148 eV).
结合TQX-IC的第三级OSC实现了令人印象深刻的PCE,分别为19.48%和20.26%,超过了Me-Y (18.19%和18.23%).
三元器件的性能提升归因于减少非辐射能量损失,优化激电动力学,改善电荷传输和更好的形态学.

结论:

将高发光和3D架构的替代物纳入Y-NFAs是一个可行的策略,以促进PLQY和减少非辐射能量损失.
TQX-IC显示了开发高性能有机太阳能电池的巨大潜力.
这项工作为通过理性分子设计实现高效的OSC提供了有希望的途径.

关键词:

非辐射重组的能量损失.有机太阳能电池是有机太阳能电池.光发光的量子收益率是多少电力转换效率的效率是什么三素衍生品的三素衍生品

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