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接近铅-锡混合钙钛矿的填充因子的冲击-凯瑟极限

发布者::admin   发布时间: :2019-12-25 15:29 浏览次数: :

Approaching the Shockley–Queisser limit for fill factors in lead–tin mixed perovskite photovoltaics

K. D. G. I. Jayawardena, R. M. I. Bandara, M. Monti,b E. Butler-Caddle,b T. Pichler, H. Shiozawa, Z. Wang, S. Jenatsch, S. J. Hinder, M. G. Masteghin, M. Patel, H. M. Thirimanne, W. Zhang, R. A. Sporea, J. Lloyd-Hughes and S. R. P. Silva

J. Mater. Chem. A 2020

https://pubs.rsc.org/en/Content/ArticleLanding/2020/TA/C9TA10543C#!divAbstract

 

Abstract:

The performance of all solar cells is dictated by charge recombination. A closer to ideal recombination dynamics results in improved performances, with fill factors approaching the limits based on Shockley–Queisser analysis. It is well known that for emerging solar materials such as perovskites, there are several challenges that need to be overcome to achieve high fill factors, particularly for large area lead–tin mixed perovskite solar cells. Here we demonstrate a strategy towards achieving fill factors above 80% through post-treatment of a lead–tin mixed perovskite absorber with guanidinium bromide for devices with an active area of 0.43 cm2. This bromide post-treatment results in a more favorable band alignment at the anode and cathode interfaces, enabling better bipolar extraction. The resulting devices demonstrate an exceptional fill factor of 83%, approaching the Shockley–Queisser limit, resulting in a power conversion efficiency of 14.4% for large area devices.

 

 

 

本篇文章采用paios多功能app特性分析系统及IVapp和分析数据,paios专用于太阳能电池瞬态光电特性及app特性的深入3.0与分析;可对OPV太阳能电池、PVK钙钛矿太阳能电池、OLED器件和其他半导体器件中的app迁移率进行全面有效的分析和app

 

测试功能:app迁移率      app3.0       串联电阻        复合效率      陷阱密度        介电常数      
                      电荷注入势垒      陷阱深度           内建电场        几何电容      掺杂密度        发射3.0      
                      PV光电转化效率(最大功率点Pmax、FF、Voc、IscVS光强)   

 

测试模式:IV曲线,IVL曲线,TPC瞬态光电流,TPV瞬态光app,Photo-CELIV线性增压app抽取,CEapp抽取,IMPS调制光电流谱,IMVS调制光app谱,IS阻抗谱,C-V电容-app,DIT暗注入,EQE外量子效率,TEL瞬态光致发光等;

 

应用领域:无机半导体材料                                                                      有机太阳能电池OPV                    
                      
钙钛矿太阳能电池(Perovskite  Solar  Cell)                   燃料敏化太阳能电池                   
                      
无机太阳能电池(硅基太阳能电池)                               有机半导体材料(OLED)

 

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