非TiO2/Sb(Se,S) 异质连接太阳能电池通过NaCl处理的接口工程提高了效率
Deyang Qin1, Panpan Yang1, Yuxin Pan1
1State key Laboratory of Precision Spectroscopy, Department of Electronic Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
ACS applied materials & interfaces
|March 26, 2025
概括
研究人员将有毒的硫化 (CdS) 替换为二氧化 (TiO2) 在硫化太阳能电池中. 离子处理增强了TiO2膜,将太阳能电池的效率从2.3%提高到5.5%.
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:
- 硫化 (CdS) 是硫化 (Sb2(S,Se) 3) 太阳能电池中常见的电子传输层,但具有环境风险和狭窄的带隙.
- 二氧化 (TiO2) 是一种环保的替代品,具有高透明度,稳定性和更宽的带隙,适用于Sb2(S,Se) 3薄膜太阳能电池.
研究的目的:
- 研究使用二氧化 (TiO2) 作为Sb2(S,Se) 3太阳能电池中的电子输送层.
- 使用化 (NaCl) 溶液处理来提高TiO2膜质量并优化TiO2/Sb2(S,Se) 3接口.
- 为了提高Sb2(S,Se) 3太阳能电池的功率转换效率 (PCE) 和性能.
主要方法:
- 化学浴沉积 (CBD) 用于培养TiO2膜.
- 在TiO2膜上使用化 (NaCl) 溶液进行了回火后处理.
- 分析了TiO2膜和TiO2/Sb2(S,Se) 3异质连接的结构和电子特性.
主要成果:
- 在回火后加入离子 (Na+) 优化了TiO2/Sb2(S,Se) 3接口.
- 增强了TiO2层的带隙,从而改善了p-n连接处的电子合.
- 太阳能电池的功率转换效率 (PCE) 从2.3%增加到5.5%.
结论:
- 用离子增强的TiO2薄膜作为Sb2(S,Se) 3太阳能电池中CdS的有效和环保的替代品.
- 这种方法显著提高了设备性能,包括短路电流密度 (JSC) 和开路电压 (VOC).
- 该研究提出了开发高效,可持续的太阳能电池技术的有希望的战略.
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