多牙化实现双边被动化,实现高效和稳定的矿太阳能电池,最大限度地减少能量损失
Haichao Yang1, Ru Li1, Shaokuan Gong2
1Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing 400044, China.
Nano letters
|September 6, 2023
概括
阿塞纳佐III (AA) 修改了氧化锡纳米颗粒,以减少矿太阳能电池的缺陷. 这一策略提高了功率转换效率 (PCE) 和设备稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可再生能源可再生能源是可再生能源.
背景情况:
- 电子输送层 (ETL),矿层和埋藏的接口中的缺陷导致太阳能电池中显著的非辐射重组.
- 非辐射重组是实现矿太阳能电池高功率转换效率 (PCE) 的主要限制因素.
研究的目的:
- 开发一种自下而上的双边修改策略,使用arsenazo III (AA) 调节SnO2纳米粒子,并使矿太阳能电池中的缺陷被动化.
- 为了提高无甲基 (无MA) 矿太阳能电池的性能和稳定性.
主要方法:
- 将arsenazo III (AA) 纳入复合物,并通过多化通过无协调的Sn4+/Pb2+进行复合.
- 在AA和formamidinium (FA) 之间形成键,以抑制FA+缺陷并调节结晶.
- 在AA和功能层之间建立多重化学键,以防止SnO2纳米粒子聚合并增强载体运输.
主要成果:
- AA复合和结合有效地使缺陷无源化,并释放拉伸应力.
- 优化SnO2纳米粒子导致增强载体运输动力学和改善矿结晶.
- 无甲基 (无MA) 的矿太阳能电池实现了从20.88%提升到23.17%的PCE,具有高开放电路电压 (VOC) >1.18V和0.37 eV的超低能量损失.
- 优化的设备显示出卓越的操作稳定性.
结论:
- 建议使用AA的双边修改策略有效地减轻了矿太阳能电池的缺陷并提高了性能.
- 亚作为一种多功能添加剂,可以改善SnO2纳米粒子特性,矿结晶和电荷传输.
- 这种方法为开发高效和稳定的矿太阳能电池提供了有希望的途径.
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