通过优化埋藏的接口接触和抑制接口重组,提高高效的倒置矿太阳能电池的孔运输统一性
Xilai He1, Hui Chen1, Jiabao Yang1
1State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, 710072, Xi'an, China.
Angewandte Chemie (International ed. in English)
|August 28, 2024
概括
新的p-xylylenediphosphonic acid (p-XPA) 接口层可以改进反转矿太阳能电池 (IPSC). 这一策略增强了能源水平的调整,抑制了重组,并提高了效率和稳定性.
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:
- 氧化 (NiOx) 接口在倒置矿太阳能电池 (IPSC) 中构成挑战.
- [4-(3,6-二甲基-9H-碳-9) 丁]酸 (Me-4PACz) 是有前途的,但在薄膜均性和缺陷被动化方面存在局限性.
- 埋藏的接口缺陷严重阻碍了矿太阳能电池中的设备性能和稳定性.
研究的目的:
- 在IPSC中引入p-xylylenediphosphonic acid (p-XPA) 作为NiOx/Me-4PACz的新型接口层.
- 研究p-XPA对表面形态,能量水平对齐和界面电荷传输的影响.
- 为了抑制埋藏界面的非辐射重组,并提高整体设备性能和稳定性.
主要方法:
- 在NiOx/Me-4PACz和矿吸收器之间制造具有p-XPA埋藏接口层的IPSC.
- 表面表征,以评估薄膜平整和界面优化.
- 分析能量水平对齐和界面电荷传输特性.
- 研究被动化机制,包括用Pb2+和FA+进行合.
主要成果:
- p-XPA有效地平整了NiOx/Me-4PACz表面,优化了接口接触.
- 通过p-XPA.观察到更好的能量水平对齐和增强的界面孔运输.
- 通过p-XPA的双边酸盐组,在埋藏的接口上抑制非辐射重组.
- 在一个小面积的设备 (0.0448 cm2) 中,实现了25.87%的冠军功率转换效率 (认证25.45%).
- 封装设备表现出卓越的操作稳定性,在50°C测试1100小时后,保持了初始效率的82.7%,在50°C测试后保持了初始效率的82.7%.
结论:
- 像p-XPA这样的分子中的双边被动化组有效地优化了界面接触,并抑制了重组.
- p-XPA 是一种高效的埋藏接口修改策略,用于提高 IPSC 的效率和运行稳定性.
- 这种方法为推进矿太阳能电池技术提供了一个有前途的途径.
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