在1.8 eV的三化烯矿中最大限度地减少界面重组,以获得27.5%高效的全矿合体
Fengjiu Yang1,2, Philipp Tockhorn1, Artem Musiienko1
1Division Solar Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489, Berlin, Germany.
Advanced materials (Deerfield Beach, Fla.)
|November 21, 2023
概括
一种新的表面处理提高了宽带间隙矿太阳能电池,提高了全矿联应用的性能. 这种进步带来了更高的效率和具有成本效益,高性能太阳能解决方案的潜力.
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.
- 固态物理 固态物理
背景情况:
- 全矿联太阳能电池提供高性能和成本效益.
- 宽带间隙 (WBG) 矿对于通过增加开放电路电压 (VOC) 来提高并联太阳能电池效率至关重要.
研究的目的:
- 开发一种新的1.8 eV带隙WBG矿组成,具有增强的性能.
- 调查皮佩拉酸 (PI) 表面处理对WBG矿太阳能电池 (PSC) 的影响.
主要方法:
- 开发了一种新的三化胺矿组成,具有1.8 eV的带隙.
- 应用的皮佩拉酸 (PI) 表面处理.
- 利用恒定光诱导磁转运测量来分析电荷载体特性.
- 结构分析以了解矿表面和散装的PI修饰.
主要成果:
- PI处理减少了多余的化,并改变了矿的表面和体积.
- 磁传输测量显示,深陷状态密度降低,载体寿命提高 (2.6倍),扩散长度提高 (1.6倍).
- WBG PSC 实现了 1.36 V VOC,接近辐射极限 (90%).
结论:
- 经过PI处理开发的WBG矿显著增强了电荷载体特性.
- 一个组合太阳能电池将经过处理的WBG矿与窄带隙矿相结合,实现了经过认证的27.5%效率.
- 这项研究提升了全矿联太阳能电池在市场可行性的潜力.
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