文献类型：期刊文献

英文题名：Role of MoO3-modified organic photovoltaic-type charge generation layer in tandem organic light-emitting diodes

作者：Lu, Zhaoyue[1];Wang, Yue[2];Li, Xiong[3];Xiao, Jing[4];Deng, Zhenbo[2]

机构：[1]East China Univ Sci Technol, Sch Sci, Dept Phys, Shanghai 200237, Peoples R China;[2]Beijing Jiaotong Univ, Inst Optoelect Technol, Key Lab Luminescence & Opt Informat, Minist Educ, Beijing 100044, Peoples R China;[3]Beijing Technol & Business Univ, Dept Phys, Beijing 100048, Peoples R China;[4]Taishan Univ, Phys & Elect Engn Coll, Tai An 271021, Shandong, Peoples R China

年份：2017

卷号：229

起止页码：47

外文期刊名：SYNTHETIC METALS

收录：;EI(收录号：20172003667152);WOS:【SCI-EXPANDED(收录号:WOS:000404198100007)】；

基金：This work was supported by the National Natural Science Foundation of China (11504109, 61274063 and 61574098) and China Postdoctoral Science Foundation (2013M541480).

语种：英文

外文关键词：Charge generation layer; Electric-generated charge; Photo-generated charge; Molybdenum trioxide; Absorption

摘要：The role of each part in MoO3-modified organic photovoltaic (OPV)-type charge generation layer (CGL) was investigated by incorporation into hole-only devices. The OPV heterojunction (HJ) consists of fullerene (C60) and copper phthalocyanine (CuPc). According to the electrical characteristics of hole-only devices, it was found that charge generation mainly took place at the interface between MoO3 and hole transport layer rather than the interface of C60-CuPc HJ under an electric field. The C60-CuPc HJ exhibited good charge generation in the presence of photons due to photovoltaic effect, despite its poorer charge generation upon an application of electric field. In addition, charges can be also generated at CuPc/MoO3 interface upon a relatively high electric field since the absorption band of charge transfer complex formed by CuPc and MoO3 is within visible region. These results, which had been rarely reported in the previous studies on OPV-type CGL, can well explain the experimental results of tandem organic light-emitting diodes (OLEDs) with MoO3 modified OPV-type CGLs.