摘要
为了探索高效无毒的钙钛矿太阳能电池,以太阳能电池模拟软件SCAPS-1D为工具,研究基于梯度掺杂CsSnI_(3)吸收层的无空穴传输层太阳能电池。首先研究均匀CsSnI_(3)吸收层的电池,在其基础上提出梯度掺杂吸收层的电池,并对吸收层掺杂梯度、平均掺杂浓度和缺陷水平进行分析和优化,最后研究了吸收层子层数的影响。研究发现梯度掺杂能够产生附加电场,可以显著提升电池转换效率。对于吸收层厚度为1000 nm的电池,通过梯度掺杂优化可以将最大转换效率从22.28%提升到25.04%。即使梯度掺杂的子层数只有两层,也能取得理想的提升效果。
In order to explore efficient non-toxic perovskite solar cells,hole transport layer(HTL)-free CsSnI3 solar cells with gradient-doping absorption layer were numerically studied by using the solar cell simulation software SCAPS-1D.Firstly,the cells with a uniform-doping absorption layer were studied.On this basis,the cells with a gradient-doping absorption layer were proposed and the influences of doping gradient,average doping level and defect concentration were systematically investigated.Finally,the effect of the number of sub-layers was studied.It is found that the gradient doping can effectively enhance the performance due to the extra electric field produced by gradient doping.For the cell with a 1000 nm-thick absorption layer,the efficiency can be increased from 22.28%to 25.04%through gradient doping and device optimization.Even if the number of the sub-layers wad reduced to two,the gradient doping can also significantly enhance the cell performance.
作者
张西丽
王建峰
李银
曹丹
ZHANG Xili;WANG Jianfeng;LI Yin;CAO Dan(College of Sciences,China Jiliang University,Hangzhou,310018,CHN)
出处
《固体电子学研究与进展》
CAS
北大核心
2023年第1期57-63,共7页
Research & Progress of SSE
基金
国家自然科学基金资助项目(11504356)
浙江省自然科学基金资助项目(LY19A040006,LY22A040002)。
作者简介
张西丽,女,湖南岳阳人,1998年11月出生,在读研究生,主要研究方向太阳能电池;联系作者:王建峰,男,江苏南通人,1983年1月出生,博士,副教授,主要研究方向功能材料与器件。E-mail:jfwang@cjlu.edu.cn。
