倒金字塔结构钙钛矿太阳能电池的仿真研究

1.深圳大学物理与光电工程学院,广东深圳518060;2.西南科技大学数理学院,四川绵阳621010

光学工程;钙钛矿太阳能电池;仿真;光电转换效率;倒金字塔结构;输出功率密度

Simulation of inverted pyramid perovskite solar cells
CHEN Mingxing1,YAN Peiguang1,and LI Xiaohong2

1.College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P. R. China;2.School of Mathematics and Physics, Southwest University of Science and Technology, Mianyang 621010, Sichuan Province, P. R. China

optical engineering; perovskite solar cell; simulation; photoelectric conversion efficiency; inverted pyramid structure; output power density

DOI: 10.3724/SP.J.1249.2022.04369

备注

为提高钙钛矿太阳能电池的性能,对太阳能电池功能层之间的接触界面结构进行优化,调节各功能层厚度.利用COMSOL多物理场仿真软件对钙钛矿太阳能电池进行结构仿真,并验证优化结构对电池电学性能的影响.结果表明,在功能层的接触面采用倒金字塔结构会影响光电转换效率,当在电子传输层与光吸收层之间设置倒金字塔结构时,可得最高输出功率密度为27.36mW/cm2,光电转换效率为27.3%,对应开路电压为1.19V,短路电流密度为26.64mA/cm2,填充因子为86.19%.研究结果为进一步提高钙钛矿太阳能电池的整体性能提供结构优化思路.
In order to improve the performance of perovskite solar cells, we optimize the contact interface structure between the functional layers, and adjust the thickness of each functional layer. By using COMSOL multi-physics simulation software, we simulate the structure of perovskite solar cells, and verify the influence of the optimized structure on the electrical performance of the cell. The results show that the inverted pyramid structure on the interface of functional layers will affect the photoelectric conversion efficiency. When the inverted pyramid structure is set between the electronic transmission layer and the light absorption layer, the maximum output power density of 27. 36 mW/cm2 can be obtained, the photoelectric conversion efficiency is 27. 3%, the corresponding open circuit voltage is 1. 19 V, the short circuit current density is 26. 64 mA/cm2, and the filling factor is 86. 19 %. The research results provide structural optimization ideas for further improving the overall performance of perovskite solar cells.
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