用自组装氨酸超分子进行高效大面积矿光伏的谷物边界工程
Zihan Fang1, Luyao Wang2, Xijiao Mu1
1State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China.
Journal of the American Chemical Society
|October 19, 2021
概括
研究人员为矿太阳能电池 (PSC) 开发了一种超分子粘合剂,可以抑制谷物边界缺陷并增强孔运输. 这项创新提高了PSC的效率和稳定性,大面积设备达到22.1%.
科学领域:
- 材料科学
- 可再生能源
- 太阳能发电
背景情况:
- 多晶太阳能电池 (PSC) 的粒度边界是性能限制和不稳定的关键位置.
- 现有的被动化策略通常使用阻碍电荷载体运输,特别是孔运输的绝缘材料.
研究的目的:
- 设计一种用于矿颗粒边界的新型超分子结合剂.
- 同时消除缺陷并促进有效的穿越这些边界.
- 提高大型公共服务中心的整体性能和稳定性.
主要方法:
- 化矿薄膜与单胺氨酸 (MPs),在颗粒边界自组合成超分子.
- 通过有机阴离子的质子化形成氨基,使缺陷被动化和孔提取成为可能.
- 在超分子中利用周期性极子,特别是NiP-超分子,以促进穿越谷物边界的孔运输.
主要成果:
- 在1.0厘米2的活性面积上,化PSC实现了22.1%的认证功率转换效率.
- 在开放电路电压和充电因子上观察到显著的改善.
- 未封装的设备表现出极好的运行稳定性,在3000小时的持续照明或热应力后保持超过80%的性能.
结论:
- 开发的超分子结合剂有效地消除缺陷,并增强矿颗粒边界的电荷传输.
- 这种方法为提高大面积PSC的效率和长期稳定提供了有希望的策略.
- 对于矿太阳能电池技术的发展,NiP超分子系统具有特殊的潜力.
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