基于N,S含有的有机半导体皇冠以太,使矿太阳能电池高效稳定
Kaixing Chen1, Ye Zeng1, Xing Gao1
1Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energy, School of Materials & Energy, Southwest University, Chongqing, 400715, P. R. China.
ChemSusChem
|October 22, 2023
概括
新的皇冠以太基半导体有效地消除了矿太阳能电池 (PSC) 中的缺陷. CDT-S治疗将PSC效率提高到23.05%,并增强长期稳定性.
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:
- 不协调的酸盐 (Pb2+) 是矿膜中常见的缺陷,降低了矿太阳能电池 (PSC) 的效率和稳定性.
- 缺陷被动化对于提高PSC性能至关重要.
研究的目的:
- 开发基于皇冠的新型有机半导体,用于修改矿膜中的Pb2+缺陷.
- 研究皇冠乙烯中异性原子 (N,S) 对缺陷被动和PSC性能的影响.
主要方法:
- 合成两个新的化合物,CDT-S和CDT-N,通过连接15-crown-5与碳醇二胺,结合N和S异构原子.
- 使用抗溶剂方法将这些化合物应用于矿膜,用于缺陷被动化.
- 用CDT-S和CDT-N处理的PSC设备的表征,包括效率和稳定性测量.
主要成果:
- 无论是CDT-S还是CDT-N,都增强了皇冠以太半导体和Pb2+缺陷之间的相互作用.
- 由于硫异原子与Pb2+的相互作用,CDT-S表现出更强的被动化效应,显著抑制非辐射重组.
- 用CDT-S处理的PSC设备实现了23.05%的功率转换效率,并在储存1000小时后保持了90.5%的初始性能.
结论:
- 皇冠乙烯是改善PSC的有效材料.
- 含有多个异质原子,特别是硫的皇冠,提供增强的缺陷被动化,从而提高矿太阳能电池的效率和改善长期稳定性.
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