实施格子和能量水平匹配,以优化高性能矿太阳能电池的埋面接口
Yapeng Sun1, Jiankai Zhang2, Bo Yu1
1School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510640, China.
Small (Weinheim an der Bergstrasse, Germany)
|October 23, 2024
概括
在矿太阳能电池 (PSC) 中引入硫化 (PbS) 连接层可以改善能量水平对齐和晶体生长. 这一策略提高了设备的性能和稳定性,实现了超过24%的功率转换效率.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
- 太阳能光伏发电是如何实现的
背景情况:
- 接口工程对于高性能矿太阳能电池 (PSC) 是至关重要的.
- 埋藏界面上的能量水平和格子不匹配显著阻碍了设备的效率.
研究的目的:
- 开发一个现场互连层,以改善 n-i-p PSC 的接口接触.
- 研究硫化物 (PbS) 层在优化SnO2/矿接口中的作用.
主要方法:
- 在SnO2.2上微薄的PbS互连层的现场生长.
- 分析接口能量水平和格子匹配的理论计算.
- 在现场的光发光 (PL) 来研究矿晶体的生长.
- 设备性能和稳定性测试.
主要成果:
- PbS形成了一个SnO2/PbS/Perovskite结构,具有匹配的能量水平和格子.
- PbS增加了SnO2导电性,并上调了费米能量水平,减少了开放电路的电压损失.
- PbS作为矿自下而上增长的模板,改善了结晶性和接口接触.
- 实现了超过24%的功率转换效率,并提高了设备的稳定性.
结论:
- PbS互连层有效地解决了PSC中的接口不匹配问题.
- 这一策略导致了高效的电荷传输,降低了电压损失,并提高了设备性能.
- 现场PbS方法为高效和稳定的矿太阳能电池提供了可行的途径.
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