Photodegradation of Organic Solar Cells under Visible Light and the Crucial Influence of Its Spectral Composition,ACS Applied Materials & Interfaces

当前位置： X-MOL 学术 › ACS Appl. Mater. Interfaces › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Photodegradation of Organic Solar Cells under Visible Light and the Crucial Influence of Its Spectral Composition
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2024-07-02 , DOI: 10.1021/acsami.4c03446
Paul Weitz ₁ , Jonas Wortmann _{1,

2} , Chao Liu _{1,

2} , Tian-Jiao Wen ₃ , Chang-Zhi Li ₃ , Thomas Heumüller _{1,

2} , Christoph J Brabec _{1,

2}

Affiliation

While wavelength-dependent photodegradation of organic solar cells (OSCs) under visible light is typically discussed in terms of UV/blue light-activated phenomena, we recently demonstrated wavelength-dependent degradation rates up to 660 nm for PM6:Y6. In this study, we systematically investigated this phenomenon for a broad variety of devices based on different donor:acceptor combinations. We found that the spectral composition of the light used for degradation, tuned in a spectral range from 457 to 740 nm and under high irradiances of up to 30 suns, has a crucial influence on the device stability of almost all tested semiconductors. The relevance of this phenomenon was investigated in the context of simulated AM1.5 illumination with metal halide lamps and white LEDs. It is concluded that the current stability testing protocols in OSC research have to be adjusted to account for this effect to reveal the underlying physics of this still poorly understood mechanism.

中文翻译：

有机太阳能电池在可见光下的光降解及其光谱组成的关键影响

虽然有机太阳能电池 (OSC) 在可见光下的波长依赖性光降解通常是根据紫外/蓝光激活现象来讨论的，但我们最近证明了 PM6:Y6 的波长依赖性降解率高达 660 nm。在这项研究中，我们系统地研究了基于不同供体：受体组合的多种设备的这种现象。我们发现，用于降解的光的光谱成分（在 457 至 740 nm 的光谱范围内调整，并在高达 30 个太阳的高辐照度下）对几乎所有测试半导体的器件稳定性具有至关重要的影响。在使用金属卤化物灯和白光 LED 模拟 AM1.5 照明的背景下研究了这种现象的相关性。结论是，必须调整 OSC 研究中当前的稳定性测试协议，以考虑到这种效应，以揭示这种仍然知之甚少的机制的基本物理原理。

更新日期：2024-07-02

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南