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有机钙钛矿和混合钙钛矿电池效率持续改善

发布者::admin   发布时间: :2019-11-26 14:19 浏览次数: :

Use of the Phen-NaDPO:Sn(SCN)2 Blend as Electron Transport Layer Results to Consistent Efficiency Improvements in Organic and Hybrid Perovskite Solar Cells

Akmaral Seitkhan, Marios Neophytou, Mindaugas Kirkus, Edy Abou-Hamad, Mohamed Nejib Hedhili, Emre Yengel, Yuliar Firdaus, Hendrik Faber, Yuanbao Lin, Leonidas Tsetseris, Iain McCulloch, and Thomas D. Anthopoulos

Advanced Functional Materials 1905810 (2019)

https://doi.org/10.1002/adfm.201905810

 

Abstract

 

A simple approach that enables a consistent enhancement of the electron extracting properties of the widely used small‐molecule Phen‐NaDPO and its application in organic solar cells (OSCs) is reported. It is shown that addition of minute amounts of the inorganic molecule Sn(SCN)2 into Phen‐NaDPO improves both the electron transport and its film‐forming properties. Use of Phen‐NaDPO:Sn(SCN)2 blend as the electron transport layer (ETL) in binary PM6:IT‐4F OSCs leads to a remarkable increase in the cells' power conversion efficiency (PCE) from 12.6% (Phen‐NaDPO) to 13.5% (Phen‐NaDPO:Sn(SCN)2). Combining the hybrid ETL with the best‐in‐class organic ternary PM6:Y6:PC70BM systems results to a similarly remarkable PCE increase from 14.2% (Phen‐NaDPO) to 15.6% (Phen‐NaDPO:Sn(SCN)2). The consistent PCE enhancement is attributed to reduced trap‐assisted carrier recombination at the bulk‐heterojunction/ETL interface due to the presence of new energy states formed upon chemical interaction of Phen‐NaDPO with Sn(SCN)2. The versatility of this hybrid ETL is further demonstrated with its application in perovskite solar cells for which an increase in the PCE from 16.6% to 18.2% is also demonstrated.   

 

 

 

本篇文章采用paios多功能载流子特性分析系统及瞬态光电流和光电压测量和分析数据,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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