材料科学
甲脒
光电流
光电子学
钙钛矿(结构)
折射率
三碘化物
能量转换效率
反射(计算机编程)
光学
传递矩阵法(光学)
涂层
电解质
纳米技术
电极
色素敏化染料
化学工程
物理化学
程序设计语言
化学
工程类
物理
计算机科学
作者
Sung‐Kwang Jung,Keonwoo Park,Do Kyung Lee,Joo-Hong Lee,Haeng-Keun Ahn,Jin‐Wook Lee
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2024-01-09
卷期号:35 (13): 135401-135401
被引量:4
标识
DOI:10.1088/1361-6528/ad1647
摘要
Abstract The importance of light management for perovskite solar cells (PSCs) has recently been emphasized because their power conversion efficiency approaches their theoretical thermodynamic limits. Among optical strategies, anti-reflection (AR) coating is the most widely used method to reduce reflectance loss and thus increase light-harvesting efficiency. Monolayer MgF 2 is a well-known AR material because of its optimal refractive index, simple fabrication process, and physical and chemical durabilities. Nevertheless, quantitative estimates of the improvement achieved by the MgF 2 AR layer are lacking. In this study, we conducted theoretical and experimental evaluations to assess the AR effect of MgF 2 on the performance of formamidinium lead-triiodide PSCs. A sinusoidal tendency to enhance the short-circuit current density ( J SC ) was observed depending on the thickness, which was attributed to the interference of the incident light. A transfer matrix method-based simulation was conducted to calculate the optical losses, demonstrating the critical impact of reflectance loss on the J SC improvement. The predicted J SC s values, depending on the perovskite thickness and the incident angle, are also presented. The combined use of experimental and theoretical approaches offers notable advantages, including accurate interpretation of photocurrent generation, detailed optical analysis of the experimental results, and device performance predictions under unexplored conditions.
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