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单质颗粒矿太阳能电池具有Mortise-Tenon结构,用于电荷提取平衡

Fangfang Wang¹, Mubai Li¹, Qiushuang Tian¹

¹Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China.

Nature communications

|June 3, 2023

概括

研究人员开发了一种用于矿太阳能电池 (PSC) 的新聚合物添加剂. 这项创新提高了矿晶体质量和电荷提取,提高了下一代太阳能效率和稳定性.

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:

矿太阳能电池 (PSC) 显示出有效的太阳能转换的希望,但受到混乱结晶和不平衡电荷提取的限制.
这些限制使PSC无法达到理论上的Shockley-Queisser极限,需要先进的材料策略.

研究的目的:

解决PSC中矿结晶和电荷提取的局限性.
通过新型材料工程提高矿太阳能电池的功率转换效率和运行稳定性.

主要方法:

热聚合添加剂被纳入矿膜中的聚合物模板.
这种添加剂促进了单质矿颗粒的形成和独特的"Mortise-Tenon"结构后孔运输层旋转涂层的形成.
分析了结构修改对电荷动态和设备性能的影响.

主要成果:

开发的添加剂促进了高质量的矿晶体和"Mortise-Tenon"结构,抑制了非辐射重组.
这导致了更好的接口电荷提取,从而提高了开通电路电压和填充因子.
在ISOS-L-2条件下,制造的PSC实现了24.55%的认证功率转换效率,并在1100小时内保持了95%以上的初始效率.

结论:

在PSC中",Mortise-Tenon"结构和高质量的矿晶体对于抑制重组和改善电荷提取至关重要.
这种新型聚合物添加剂为提高矿太阳能电池的效率和长期稳定性提供了一个可行的策略.
这项工作有助于将PSC技术推进到实际应用和更高的能量转换效率.

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