限制非富勒烯受体分子的过度聚合使有机太阳能模块具有>16效率
Erming Feng1, Chujun Zhang1, Jianhui Chang1
1Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China.
ACS nano
|October 1, 2024
概括
有机太阳能电池 (OSC) 的可扩展处理通过了解薄膜形成而得到了推进. 优化的医生叶片抑制聚合,增强工业应用的形态和效率.
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:
- 推进有机光伏 (OPV) 需要将高性能有机太阳能电池 (OSC) 材料从实验室规模的旋转涂层转化为工业规模的加工.
- 了解印刷过程中光活性层内的结构形成动态对于弥合实验室研究和工业化之间的差距至关重要.
研究的目的:
- 探索在医生排卵期间在PM6:L8-BO光伏系统中控制薄膜形成的复杂机制.
- 调查印刷兼容溶剂对结构动态和形态特性的影响.
主要方法:
- 使用了医生刀片,使用了两种可打印的溶剂.
- 研究了捐助聚合物PM6和高沸点溶剂对L8-BO结构动态的协同影响.
- 优化了处理策略,以控制薄膜形成和形态.
主要成果:
- 确定了PM6和高沸点溶剂对L8-BO结构动力学和形态学的协同作用.
- 优化处理在缓慢干燥过程中抑制了L8-BO聚合,增强了结晶和分子导向.
- 实现了更好的电荷传输,减少了缺陷和重组,提高了扩展潜力.
结论:
- 优化的PM6:L8-BO OSC在小面积设备中实现了18.42%的效率,在模块中达到16.02%.
- 展示了薄膜形成动力学,结构动力学和可扩展处理中的设备性能之间的相互作用.
- 为推进有机太阳能电池的可扩展制造提供了宝贵的见解.
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