钙钛矿/硅异质结叠层太阳电池:光学模拟的研究进展

Perovskite/silicon heterojunction tandem solar cells:Advances in optical simulation

近几年,钙钛矿/硅异质结叠层太阳电池发展迅速,效率已经从13.7%提升到29.1%.由于叠层电池器件的制作工艺复杂,而叠层太阳电池中的光学损失对转换效率的影响很大,所以通过光学模拟进而获得高效电池至关重要.本文首先从商业软件和自建模型两方面概述了光学模拟的方法,接着从反射损失和寄生吸收两方面针对光学模拟研究进展进行了总结和分析,最后指出了叠层电池光学模拟过程中需要注意的问题.钙钛矿/硅异质结叠层太阳电池的转换效率极限最高可达40%,具备很大的提升空间,结合模拟工作的研究,叠层电池的发展将会取得更大的进步.

Perovskite/silicon heterojunction tandem solar cells have developed rapidly in recent years,and their efficiency is enhanced from 13.7%to 29.1%.As is well known,the optical loss has a great influence on the efficiency.Due to the complex fabrication process of tandem solar cells,it is important to obtain highperformance tandems through optical simulation.In this paper,optical simulation methods are mainly summarized from two aspects:commercial software and self-built model.Then,the progress of optical simulation is analyzed in terms of reflection loss and parasitic absorption.Finally,what should be paid more attention to in the optical simulation of tandem solar cells is pointed out.The efficiency limit of perovskite/silicon heterojunction tandem solar cells can reach up to 40%,but there remains much room for improvement.The research on optical simulation will lay the foundation of developing the tandem solar cells.