有机固体溶液由两个结构相似的氨酸组成,用于有机太阳能电池
Yonggang Zhen1, Hideyuki Tanaka, Koji Harano
1Department of Chemistry, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Journal of the American Chemical Society
|January 28, 2015
概括
创建四松氨酸 (BP) 和二乙纳[q]三[b,g,l]氨酸 (CABP) 的固体溶液显著提高有机太阳能电池的性能. 这种新的方法通过改善电荷分离来提高功率转换效率.
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 (OSC) 依赖于供体和受体材料来有效地产生电荷.
- 二二 (BP) 和二二二三二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二三二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二
- 控制有机半导体的固态形态对于优化设备性能至关重要.
研究的目的:
- 研究BP和CABP固体溶液的形成和性质.
- 为了评估使用这种BP:CABP固体溶液的有机太阳能电池的性能.
- 了解固体溶液对电荷载体分离和设备效率的影响.
主要方法:
- 在烯基矩阵中生成由75:25的BP和CABP混合物组成的固体溶液.
- 使用合成的固体溶液制造平面异质连接有机太阳能电池.
- 设备性能的表征,包括功率转换效率 (PCE) 和短路电流密度 (Jsc).
主要成果:
- 与单个组件相比,BP:CABP固体溶液表现出独特的结构和光电子特性.
- 采用固体溶液的OSC实现了比原始BP和CABP的设备高出16%和300%的PCE.
- 增强的PCE被归因于增加的Jsc,这是由于在捐赠/接受器接口上改善了电荷载体分离,可能是由于固体溶液中的优化能量水平和电子合.
结论:
- 在富勒烯矩阵中形成BP和CABP的固体溶液是提高OSC性能的有效策略.
- 这种方法提供了一种简单的方法,用于物理和化学调制有机半导体特性.
- 结果强调了固体解决方案的潜力,用于开发高效的有机太阳能电池.
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