界面双极诱导高开放电路电压,用于高效的矿太阳能电池
Wenjuan Jiang1, Jinxian Yang1, Haokun Jiang1
1College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
Langmuir : the ACS journal of surfaces and colloids
|March 20, 2025
概括
矿薄膜的表面缺陷会导致能量损失. 用3,3,3-trifluoropropionamide (TFAN) 修改矿表面可以抑制缺陷,提高太阳能电池的效率和稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 太阳能光伏发电是如何实现的
- 化学工程是化学工程的重要组成部分.
背景情况:
- 溶液处理的矿膜会出现表面和粒度边界缺陷.
- 这些缺陷导致非辐射重组,导致矿太阳能电池的歇斯底里和能量损失.
- 接口修改是提高矿太阳能电池性能的关键.
研究的目的:
- 研究使用3,3,3-三烯胺 (TFAN) 作为矿薄膜的界面修饰剂.
- 使用TFAN,使矿表面的Pb2+不协调的缺陷被动化.
- 为了提高矿太阳能电池的光伏性能和运行稳定性.
主要方法:
- 引入TFAN,一种具有永久二极极矩的极性分子,用于修改矿膜表面.
- 修改膜中缺陷密度和重组动态的表征.
- 使用TFAN修改接口的矿太阳能电池的制造和测试.
主要成果:
- 在矿表面上,TFAN有效地使无协调的Pb2+被动化.
- 使用TFAN进行界面修改显著降低了陷状态密度和非辐射重组.
- 用TFAN修改的矿太阳能电池实现了25.17%的功率转换效率 (从22.21%) 和1.23V的开放电路电压 (从1.14V).
- 光电电流被维持,而光伏参数和运行稳定性得到了显著改善.
结论:
- TFAN是矿薄膜的有效界面修饰剂.
- 使用TFAN消极表面缺陷可以增强电荷转移,减少能量损失.
- 用TFAN修改的矿太阳能电池显示出更高的效率和稳定性,突出了先进光伏应用的潜力.
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