通过协同降低高效矿太阳能电池的异质接口能量补偿来最大限度地降低电压损失
Xinxin Wang1, Hao Huang1, Min Wang1
1State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of New Energy, North China Electric Power University, Beijing, 102206, China.
Small (Weinheim an der Bergstrasse, Germany)
|April 2, 2024
概括
研究人员通过工程接口减少了矿太阳能电池 (PSC) 的能量损失. 这一策略提高了功率转换效率 (PCE) 和开放电路电压 (VOC),从而实现了更稳定,更高效的太阳能转换.
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
- 纳米技术 纳米技术
背景情况:
- 在矿太阳能电池 (PSC) 的接口处的开放电路电压 (VOC) 损失阻碍了功率转换效率 (PCE) 的改进.
- 矿/电子输送层 (ETL) 接口上的缺陷和矿/孔输送层 (HTL) 接口上的被动化效应有助于能量损失.
研究的目的:
- 减少PSC内部的异质接口的能量抵消,以减轻VOC损失.
- 通过接口工程来增强PSC的PCE和稳定性.
主要方法:
- 使用甲酸作为矿/ETL接口的分子桥梁,以减少缺陷和能量水平偏移.
- 在矿/HTL接口上加入了 (2-(4-(bis(4-甲基) 氨基) 基) - - 基基酸,以中和被动化效应并优化能量水平对齐.
- 通过量身定制的分子策略,协同减少异质接口能量抵消.
主要成果:
- 在PSC中实现了25.13%的功率转换效率 (PCE).
- 将开放电路电压 (VOC) 从1.134V提高到1.174V.
- 证明了增强的稳定性:未封装的PSC在2000小时的环境老化后保留了≈96%的初始PCE,在210小时的操作老化后保持了≈97%.
结论:
- 定制的接口工程有效地减少了PSC中的能量抵消和VOC损失.
- 开发的战略显著提升了PCE,并改善了运营和环境稳定性.
- 这种方法为推进高性能和耐用的矿太阳能电池技术提供了一个有希望的途径.
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