铋
材料科学
兴奋剂
微晶
钙钛矿(结构)
碘化物
化学工程
卤化物
无机化学
纳米技术
光电子学
化学
冶金
工程类
作者
Júlia Marí-Guaita,Amal Bouich,B. Marı́
出处
期刊:JOM
[Springer Nature]
日期:2022-06-08
卷期号:74 (8): 3103-3110
被引量:5
标识
DOI:10.1007/s11837-022-05347-4
摘要
Abstract Perovskites have been in the spotlight in the field of solar cells due to their high efficiency and their low cost of materials and fabrication processes. Perovskite solar cells (PSCs) have shown an efficiency of up to 25%. Nevertheless, PSCs have some drawbacks such as rapid degradation in ambient conditions. To improve PSC stability, lead is usually replaced with bismuth. In this article, we report the results when doping the methylammonium lead iodide (CH 3 NH 3 )PbI 3 , aka MAPbI 3 , with different bismuth quantities. The incorporation of bismuth into the lattice leads to a remarkable change in optoelectronics and morphological structure. Substituting lead atoms with 2% bismuth improves some characteristics of MAPbI 3 layers, such as removing pinholes and increasing crystallite size and optical absorption. Furthermore, bismuth doping improves the stability of pure MAPbI 3 layers, which after 4 weeks exhibits higher degradation compared to bismuth-doped MAPbI 3 samples, which remain stable after that period.
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