在非化四聚烯受体中进行宏环封装,用于高短路电流密度高效的有机太阳能电池
Shuaishuai Shen1, Yu Mi1, Yanni Ouyang2
1Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
Angewandte Chemie (International ed. in English)
|November 10, 2023
概括
宏循环封装为有机太阳能电池 (OSC) 创造了稳定的平面非富勒烯受体. 这种设计通过改善分子堆叠和电荷传输,提高了功率转换效率 (PCE) 超过15.10%.
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:
- 非富勒受体 (NFAs) 对于高性能有机太阳能电池 (OSC) 是至关重要的.
- 在NFAs中实现构造稳定性和有效的分子堆叠仍然是一个关键的挑战.
- 现有的NFA经常患有形状障碍,妨碍有效的电荷传输.
研究的目的:
- 设计一种具有增强形态稳定的新型非化四基受体 (R4T-1).
- 调查宏环封装对分子结构和包装的影响.
- 为了评估基于R4T-1的有机太阳能电池的光伏性能.
主要方法:
- 一种新型非化四基受体 (R4T-1) 的合成,采用宏环封装.
- 单晶X射线衍射分析以确定分子结构和形状.
- 使用R4T-1作为受体材料的有机太阳能电池 (OSC) 的制造和表征.
主要成果:
- 由于宏循环封装,R4T-1表现出平面分子脊柱,确保了形状稳定性.
- 没有封装的控制分子表现出扭曲和不稳定的形状.
- 基于R4T-1的OSC实现功率转换效率 (PCE) 超过15.10%,高短路电流密度 (Jsc) 为25.48 mA/cm2,相对改善约30%.
结论:
- 宏循环封装是一种有效的策略,可以在非融合电子受体 (FNEAs) 中实现构造刚性.
- 这种方法显著提高了OSC中的分子堆叠和电荷传输特性.
- R4T-1设计为开发下一代太阳能电池的高性能FNEAs开辟了新的途径.
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