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基于液体WS2的17%的高效有机太阳能电池

发布者::admin   发布时间: :2019-11-29 15:25 浏览次数: :

17% Efficient Organic Solar Cells Based on Liquid Exfoliated WS2 as a Replacement for PEDOT:PSS

Yuanbao Lin, Begimai Adilbekova, Yuliar Firdaus, Emre Yengel, Hendrik Faber, Muhammad Sajjad, Xiaopeng Zheng, Emre Yarali, Akmaral Seitkhan, Osman M. Bakr, Abdulrahman El-Labban, Udo Schwingenschlögl, Vincent Tung, Iain McCulloch, Frédéric Laquai, and Thomas D. Anthopoulos 

Advanced Materials 1902965 (2019)

https://doi.org/10.1002/adma.201902965

 

Abstract

The application of liquid‐exfoliated 2D transition metal disulfides (TMDs) as the hole transport layers (HTLs) in nonfullerene‐based organic solar cells is reported. It is shown that solution processing of few‐layer WS2 or MoS2 suspensions directly onto transparent indium tin oxide (ITO) electrodes changes their work function without the need for any further treatment. HTLs comprising WS2 are found to exhibit higher uniformity on ITO than those of MoS2 and consistently yield solar cells with superior power conversion efficiency (PCE), improved fill factor (FF), enhanced short‐circuit current (JSC), and lower series resistance than devices based on poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) and MoS2. Cells based on the ternary bulk‐heterojunction PBDB‐T‐2F:Y6:PC71BM with WS2 as the HTL exhibit the highest PCE of 17%, with an FF of 78%, open‐circuit voltage of 0.84 V, and a JSC of 26 mA cm−2. Analysis of the cells' optical and carrier recombination characteristics indicates that the enhanced performance is most likely attributed to a combination of favorable photonic structure and reduced bimolecular recombination losses in WS2‐based cells. The achieved PCE is the highest reported to date for organic solar cells comprised of 2D charge transport interlayers and highlights the potential of TMDs as inexpensive HTLs for high‐efficiency organic photovoltaics.

 

  

 

本篇文章采用paios多功能载流子特性分析系统及IV,瞬态光电流,阻抗谱和调制光电流谱测量和分析数据,paios专用于太阳能电池瞬态光电特性及载流子特性的深入研究与分析;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载流子迁移率进行全面有效的分析和测量

测试功能:载流子迁移率      载流子寿命       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        发射寿命      
                      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瞬态光电压,Photo-CELIV线性增压载流子抽取,CE载流子抽取,IMPS调制光电流谱,IMVS调制光电压谱,IS阻抗谱,C-V电容-电压,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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