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高效率的异连接太阳能电池由Mg3(PO4) 2/MgF2堆启用,功率转换效率超过23%
Hongyu Dun1,2,3,4, Zhiyuan Xu1,2,3,4, Yu Yan1,2,3,4
1Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin, 300350, China.
Small (Weinheim an der Bergstrasse, Germany)
|December 15, 2025
概括
酸 (Mg3(PO4) 2) 是一种有前途的新型电子选择性传输层,用于无多异质连接 (SHJ) 太阳能电池. 这种材料提高了功率转换效率,在优化设备中达到高达23.25%的效率.
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
- 固态物理 固态物理
背景情况:
- 无添加剂的异质连接 (SHJ) 太阳能电池具有降低成本和简化处理等优势.
- 研究正在积极探索新型材料,以提高SHJ太阳能电池的性能.
- 电子选择性传输层 (ESTL) 对于太阳能电池中有效的电荷提取至关重要.
研究的目的:
- 研究酸 (Mg3(PO4) 2作为无多SHJ太阳能电池的新型电子选择性传输层 (ESTL).
- 为了评估Mg3(PO4) 2的性能,无论是作为独立层还是与MgF2结合使用.
- 评估Mg3(PO4)2对SHJ太阳能电池功率转换效率 (PCE) 的影响.
主要方法:
- 制造和特征的Mg3(PO4) 2薄膜.
- 测量Mg3(PO4) 2层的工作函数 (WF) 和接触电阻 (ρc).
- 集成Mg3 ((PO4) 2) 和Mg3 ((PO4) 2 / MgF2堆到完全后接触的SHJ太阳能电池架构中.
- 制造太阳能电池的性能测试,包括功率转换效率 (PCE) 测量.
主要成果:
- Mg3(PO4) 2 的工作功率为3.64 eV,接触电阻为67.00 mΩ cm2.
- 一个Mg3(PO4) 2/MgF2堆与单个层相比显示出更高的性能.
- 结合Mg3(PO4) 2 / MgF2堆的SHJ太阳能电池实现了22.88%的PCE.
- 具有Mg3(PO4)2在发光侧和MgF2作为反射涂层的设备达到23.25%的PCE.
结论:
- 酸 (Mg3(PO4) 2) 是太阳能电池的有效电子选择性材料.
- 3PO4) 2/MgF2堆显示了提高SHJ太阳能电池性能的巨大潜力.
- Mg3(PO4)2 是一个有前途的三元化合物ESTL用于开发高效太阳能电池.
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