高性能化环电子受体-矿混合体
Mingyu Zhang1, Shuixing Dai1, Sreelakshmi Chandrabose2
1Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education , Peking University , Beijing 100871 , China.
Journal of the American Chemical Society
|October 26, 2018
概括
化环电子受体 (FREA) - 矿混合体提供了一种简单的方法来创建高效和稳定的有机-无机混合太阳能电池. 这种方法提高了矿膜质量和电荷转移,提高了太阳能电池的性能.
科学领域:
- 材料科学
- 可再生能源
- 太阳能发电
背景情况:
- 有机-无机混合太阳能电池是可再生能源的前景.
- 矿材料具有很高的效率,但面临着稳定性挑战.
- 电子受体材料在电荷提取中起着至关重要的作用.
研究的目的:
- 在太阳能电池中研究化环电子受体 (FREA) - 矿混合体的使用.
- 提高有机-无机混合太阳能电池的效率和稳定性.
- 了解FREA在矿膜特性和电荷动态中的作用.
主要方法:
- 制造FREA-矿混合膜
- 膜形态和结晶性 (粒径,结晶性) 的表征.
- 用于研究电荷动态的光物理测量 (时间解析的光发光,短暂的吸收).
- 太阳能电池的设备性能测试 (瞬态光电流和光电压).
主要成果:
- 与原始矿相比,FREA-矿混合膜的粒度更大,结晶性更好.
- FREA通过与低协调的Pb原子协调被动化陷状态.
- FREA促进了高效的电子提取和收集,导致更快的电荷转移.
- 在基于FREA的设备中观察到电荷重组的减少.
结论:
- FREA-矿混合平台可以简单地制造高效,稳定的有机-无机混合太阳能电池.
- 加入FREA可以提高矿薄膜的质量,并提高矿的运输性能.
- 这种方法使得太阳能电池的效率达到21.7%,超过了控制装置 (19.6%).
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