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一个没有ITO的石太阳能电池
Yixiong Ji1, Wangxian Chen2, Di Yan3
1ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Victoria, 3010, Australia.
Small (Weinheim an der Bergstrasse, Germany)
|September 29, 2023
概括
研究人员开发了一种用于石 (CZTSSe) 太阳能电池的新型ZnO/AgNW/ZnO/AgNW窗口结构. 这种无ITO的设计增强了开放电路电压和载波收集,实现了超过10%的效率.
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:
- 凯斯特Cu2ZnSn(S,Se) 4 (CZTSSe) 薄膜太阳能电池显示出希望,但由于接口重组,由于低开放电路电压 (VOC) 而受到限制.
- 吸收器和缓冲器/窗口层之间的高密度接口状态阻碍了光生成载体的收集,并降低了整体效率.
研究的目的:
- 通过提出新的窗口结构来解决CZTSSe太阳能电池的效率限制.
- 通过一种低损坏的加工方法来提高CZTSSe设备的光电子性能和连接质量.
主要方法:
- 设计并实施了一种新的ZnO/AgNW/ZnO/AgNW (ZAZA) 窗口结构.
- 扎扎结构被整合到CZTSSe太阳能电池中,作为传统的氧化物 (ITO) 的替代品.
- 设备的性能是根据开放电路电压 (VOC),内置电压 (Vbi),载波收集和整体转换效率进行评估的.
主要成果:
- 基于ZAZA的CZTSSe太阳能电池显示,增强的VOC归因于更高的内置电压 (Vbi) 和降低的接口重组.
- 由于收集路径缩短和载体寿命分布更加均,观察到载体收集的改善.
- 制造的设备在没有反射涂层的情况下实现了超过10%的太阳光转化为电力的效率,标记了第一个没有ITO的CZTSSe电池具有这种性能.
结论:
- 拟议的ZAZA窗口结构为CZTSSe太阳能电池提供了一个可行的,低损坏的ITO替代方案.
- 这一进步通过减轻接口重组和增强载体动态来显著提高设备性能.
- 这一发展为更高效和更具成本效益的无ITO矿薄膜太阳能电池铺平了道路.
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