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宽禁带非富勒烯受体实现高性能有机太阳能电池

发布者::admin   发布时间: :2019-11-05 16:53 浏览次数: :

Wide-gap non-fullerene acceptor enabling high-performance organic photovoltaic cells for indoor applications

 

Yong Cui, Yuming Wang, Jonas Bergqvist, Huifeng Yao, Ye Xu, Bowei Gao, Chenyi Yang, Shaoqing Zhang, Olle Inganäs, Feng Gao and Jianhui Hou

Nature Energy 4, 768 (2019)

https://doi.org/10.1038/s41560-019-0448-5

 

Abstract

Organic photovoltaic cells are potential candidates to drive low power consumption off-grid electronics for indoor applications. However, their power conversion efficiency is still limited by relatively large losses in the open-circuit voltage and a non-optimal absorption spectrum for indoor illumination. Here, we carefully designed a non-fullerene acceptor named IO-4Cl and blend it with a polymer donor named PBDB-TF to obtain a photoactive layer whose absorption spectrum matches that of indoor light sources. The photovoltaic characterizations reveal a low energy loss below 0.60 eV. As a result, the organic photovoltaic cell (1 cm2) shows a power conversion efficiency of 26.1% with an open-circuit voltage of 1.10 V under a light-emitting diode illumination of 1,000 lux (2,700 K). We also fabricated a large-area cell (4 cm2) through the blade-coating method. Our cell shows an excellent stability, maintaining its initial photovoltaic performance under continuous illumination of the indoor light source for 1,000 hours.

 

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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