在高性能矿太阳能电池的埋藏接口上,AlOx的区域选择性原子层沉积
Jie Zhang1, Yuehui Li1, Liman Huo1
1State Key Laboratory of Fine Chemicals, School of Chemistry, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian, China.
Angewandte Chemie (International ed. in English)
|February 2, 2026
概括
在矿太阳能电池 (PSC) 上,AlOx的区域选择性原子层沉积 (AS-ALD) 会使NiOx缺陷无效. 这一策略将功率转换效率 (PCE) 提高到26.41%,并提高了设备的稳定性.
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.
- 纳米技术 纳米技术
背景情况:
- 自组装单层 (SAM) 改进了矿太阳能电池 (PSC),但在NiOx表面留下了缺陷点.
- 不完整的表面覆盖导致非辐射重组和矿降解,限制了设备的性能和稳定性.
研究的目的:
- 在PSC中开发一个区域选择性原子层沉积 (AS-ALD) 策略,用于在暴露的NiOx表面上精确地进行AlOx沉积.
- 通过抑制电荷重组和矿降解来提高PSC的性能和稳定性.
主要方法:
- 区域选择性原子层沉积 (AS-ALD) 在暴露的NiOx上沉积超薄的AlOx,保留SAM覆盖的区域.
- 利用AlOx的负定电荷来改善电荷载体的动态.
- 在NiO表面减少有害的Ni4+含量.
主要成果:
- 单个PSC的功率转换效率 (PCE) 为26.41%.
- 在64.68厘米2的活性面积上,对矿模块证明了20.88%的效率.
- 显著提高了设备的稳定性,在1500小时的暗存后保留了~95%的PCE,在85°C下800小时后保留了~80%.
结论:
- 的AS-ALDx有效地使NiOx缺陷无效,抑制重组,并增强矿的稳定性.
- 开发的方法为高性能和耐用的矿太阳能电池提供了一个有前途的途径.
- 这种方法解决了PSC技术的关键挑战,为商业可行性铺平了道路.
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