用于高性能有机太阳能电池的微调非富勒接受器
Hongli Wang1, Xingjian Dai1, Chentong Liao2
1School of Chemical Engineering and National Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu 610065, P. R. China. xpxu@scu.edu.cn.
概括
合成了具有素修饰的新型Y系列非烯受体 (NFAs). HSi变种显示了增强的光伏性能,由于改进的分子包装和减少的能量损失,实现了19.56%的功率转换效率 (PCE).
科学领域:
- 材料科学
- 有机电子
- 太阳能发电
背景情况:
- 非富勒烯受体 (NFAs) 对于提高有机太阳能电池效率至关重要.
- 分子设计,包括侧链工程和化,显著影响NFA特性和设备性能.
研究的目的:
- 通过二维侧链改造合成新型Y系列NFA.
- 研究化 (,,) 对分子包装,能量水平和光伏性能的影响.
- 将结构修改与设备效率和能量损失机制相关联.
主要方法:
- 三种新型Y系列NFAs的合成:HSi,FSi和ClSi,具有2D侧链修改.
- 通过实验技术进行分子包装和能量水平的表征.
- 合成NFA的有机太阳能电池的制造和测试,以评估光伏性能.
主要成果:
- Y系列NFAs的化显著改变了分子包装和能量水平.
- HSi NFA显示出平衡的结晶性和分子堆叠.
- HSi的功率转换效率 (PCE) 为19.56%,最大开通电路电压 (VOC) 为0.940V,非辐射能量损耗降低了0.172 eV.
结论:
- 二维侧链修饰和化是调整NFA属性的有效策略.
- 酸NFA是高性能有机太阳能电池的一个有希望的材料.
- 优化分子包装和减少非辐射重组是实现高PCE的关键.
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