一种通用弹性体剂,用于解决高效有机太阳能电池中的脆性问题
Saimeng Li1, Yufei Wang2, Chunlong Sun1
1School of Materials Science and Engineering, State Key Laboratory of Advanced Materials for Intelligent Sensing, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Key Laboratory of Organic Integrated Circuits, Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China.
Advanced materials (Deerfield Beach, Fla.)
|December 5, 2025
概括
研究人员使用SEEPS,一种弹性体剂,为有机太阳能电池 (OSC) 开发了一种新的硬化策略. 这种方法显著提高了机械伸展性,并保持了先进的可穿戴设备的高光伏效率.
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:
- 有机太阳能电池 (OSCs) 对于可穿戴应用需要机械弹性.
- 目前的OSCs由于受体材料作为应力缩剂而遭受薄膜脆化.
- 需要一种通用方法来加强OSC.
研究的目的:
- 引入一个广泛适用的战略,加强OSCs.
- 提高机械弹性并保持OSC的光伏效率.
- 开发本质上可以拉伸的OSC.
主要方法:
- 使用了SEEPS,一种具有与接受器量身定制的混合性弹性剂.
- 通过动态机械分析定义了硬化参数 η.
- 采用现场放牧发作X射线散射来分析材料在应力下的行为.
主要成果:
- 通过分散应变能量,SEEPS诱导了破裂应变的11倍以上的增加.
- 弹性体剂保留了分子包装,并在应变下抑制了相分离.
- 可拉伸的OSC在40%的应变下经过500个拉伸释放周期后,保持了其最初效率的四分之五.
- 在本质上可拉伸的OSC中实现了超过16%的功率转换效率.
结论:
- 基于SEEPS的战略提供了一种通用方法,以加强OSC.
- 这种方法使得高性能,机械坚固和可伸缩的有机太阳能电池的开发成为可能.
- 这些发现为设计下一代灵活和可穿戴光伏设备提供了洞察力.
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