同质结
兴奋剂
材料科学
光电子学
钙钛矿(结构)
能量转换效率
太阳能电池
钙钛矿太阳能电池
带偏移量
太阳能电池效率
工程物理
纳米技术
带隙
化学工程
价带
物理
工程类
作者
Nabarun Saha,Giuseppe Brunetti,Caterina Ciminelli
出处
期刊:Lecture notes in electrical engineering
日期:2023-11-29
卷期号:: 250-256
标识
DOI:10.1007/978-3-031-48711-8_30
摘要
In the field of renewable energy sources, perovskite solar cells have garnered significant attention thanks to remarkable power conversion efficiency and low fabrication cost. Among various attempts explored to enhance efficiency, p-n homojunction perovskite recently emerged as a promising approach. Leveraged from the inbuilt electric field inside the absorbing layer, it provides better charge separation and thus reduces the recombination. This paper presents an in-depth analysis of the homojunction perovskite solar cell performance with the p and n doping concentration as well as the effect of band offset at the junction between the perovskite and the electron and hole transport layer. The analysis shows that the band offset at the perovskite-electron transport layer interface plays the dominant role in the performance of the homojunction perovskite solar cell. The doping concentration on the two sides adds an extra degree of freedom in tailoring the band alignment and improving efficiency. The study can provide a better insight into designing a highly efficient homojunction perovskite solar cell with a proper choice of doping concentration and electron/hole transport layer.
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