通过再结晶辅助蒸汽沉积消除谷物边界,以获得高效稳定的矿太阳能电池和模块
Yulong Wang1, Pin Lv1, Junye Pan1
1State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, China.
Advanced materials (Deerfield Beach, Fla.)
|July 19, 2023
概括
本研究介绍了矿太阳能电池的混合蒸气沉积方法,显著减少缺陷并提高效率. 这项新技术提高了矿膜质量,以更好地转化太阳能.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源技术可再生能源技术
- 太阳能光伏发电是如何实现的
背景情况:
- 蒸汽沉积为矿太阳能电池提供了大规模生产潜力.
- 由于缺陷,当前蒸汽沉积矿太阳能电池的效率低于溶液处理的同行.
- 蒸汽沉积中的自上而下的结晶机制与产生大缺陷有关.
研究的目的:
- 开发一种混合蒸汽沉积方法,与溶剂辅助再结晶相结合.
- 制造高质量,大面积的矿膜,缺陷密度降低.
- 提高矿太阳能电池和模块的效率和稳定性.
主要方法:
- 采用了混合蒸汽沉积技术.
- 用溶剂辅助的再结晶被整合起来,以改善片质量.
- 分析了取决于温度的电荷载体动态,以评估缺陷抑制.
主要成果:
- 在谷物边界的中间阶段诱导了二次生长,导致更大的谷物和减少的谷物边界.
- 成功制造出具有明显较低缺陷密度的矿膜.
- 在小面积电池中实现了21.9%的冠军效率,在大面积模块中达到19.9%.
- 该方法抑制了所有重组反应,增强了电荷载体动力学.
结论:
- 混合蒸汽沉积方法有效地产生高质量的矿膜.
- 优化的薄膜导致高效的矿太阳能电池和模块.
- 开发的太阳能模块表现出卓越的运行稳定性,在200小时后保持超过92%的效率.
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