新的中频段间隙无环客接收器具有更高的LUMO水平,可实现高性能三级有机太阳能电池
Zhongxin Zhou1, Yongchuan Xu1, Jun Yang1
1School of Materials Science and Engineering, Jiangsu Engineering Laboratory of Light-Electricity-Heat Energy-Converting Materials and Applications, Changzhou University, Changzhou 213164, China.
ACS applied materials & interfaces
|August 31, 2023
概括
研究人员开发了一种新的小分子受体,DFTQA-2FIC,以增强有机太阳能电池 (OSC). 将其添加到二元混合物中,在三元有机太阳能电池中显著提高了功率转换效率 (PCE).
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:
- 三元策略提高有机太阳能电池 (OSC) 的功率转换效率 (PCE).
- 小分子受体是高性能OSC的关键组件.
研究的目的:
- 为了引入一个新的非化环小分子接受器,DFTQA-2FIC.
- 调查使用DFTQA-2FIC作为第三个组件的三元OSC的性能.
主要方法:
- 合成DFTQA-2FIC,一个中等带隙小分子接受器.
- 通过将DFTQA-2FIC纳入PM6:Y6混合物来制造三元OSC.
- 光伏性能和膜形态的表征.
主要成果:
- 三元混合膜显示出平衡的孔/电子流动性和改善的形态.
- 在三元器件中,电荷载体重组减少了.
- 一个优化的三元OSC获得了17.29%的PCE,比二元混合物相对增加了7.46%.
结论:
- DFTQA-2FIC有效地提高了三元OSC的表现.
- 添加 DFTQA-2FIC 会导致设备参数的改进和更高的 PCE.
- 这项研究表明了DFTQA-2FIC在优化有机太阳能电池性能方面的潜力.
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