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酸盐全合一的注策略使得酸盐合剂的效率高

Shun Zhou¹, Shiqiang Fu¹, Chen Wang¹

¹Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, China.

|November 8, 2023

概括

我们开发了一种全方位的兴奋剂策略, 使用酸 (AspCl) 增强锡 (Sn-Pb) 太阳能电池. 这种方法提高了单连接和并联装置的效率和稳定性.

科学领域:

材料科学
可再生能源
固态物理

背景情况:

提供超越Shockley-Queisser极限的途径.
狭窄带隙锡- (Sn-Pb) 矿子电池面临着性能和稳定性的挑战.
缺陷和杂质,如Sn4+,限制了Sn-Pb矿的效率.

研究的目的:

开发一个有效的用于狭带间隙Sn-Pb矿子细胞的兴奋剂策略.
提高单节和双节矿太阳能电池的效率和运行稳定性.
解决Sn-Pb矿材料中的缺陷被动化和杂质减少问题.

主要方法:

使用阿斯巴酸 (AspCl) 实施了全套兴奋剂策略.
在底部的多3,4-乙烯二氧化-多硫酸和散装矿层中引入了AspCl.
还对Sn-Pb矿层进行了AspCl的后处理.

主要成果:

AspCl 兴奋剂有效地使缺陷无效,减少了 Sn4+ 杂质,并改变了费米能量水平.
由于AspCl的结合,观察到结构完整性的提高,改善了Sn-Pb矿的稳定性.
单连接Sn-Pb电池的效率达到22.46%,而双联电池的效率达到27.84% (27.34%获得认证),在2000小时后保持95%.

结论:

所有的AspCl配合策略显著提高了Sn-Pb矿太阳能电池的性能.
这种方法既提高了单连接器和双连接器的功率转换效率,也提高了长期稳定性.
AspCl 化为推进全矿联太阳能电池技术提供了一个有前途的方法.

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