Photomultiplication Type Broad Response Organic Photodetectors with One Absorber Layer and One Multiplication Layer

被引：134
作者：
Zhao, Zijin [1 ]
Wang, Jian [2 ]
Xu, Chunyu [1 ]
Yang, Kaixuan [1 ]
Zhao, Fenggui [1 ]
Wang, Kai [1 ]
Zhang, Xiaoli [3 ]
Zhang, Fujun [1 ]
机构：
[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
[2] Taishan Univ, Coll Phys & Elect Engn, Tai An 271021, Shandong, Peoples R China
[3] Zhengzhou Univ, Sch Mat Sci & Engn, State Ctr Int Cooperat Designer Low Carbon & Envi, Zhengzhou 450001, Henan, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2020年 / 11卷 / 02期
关键词：
POLYMER SOLAR-CELLS; POWER CONVERSION EFFICIENCY; NARROW-BAND; HIGH-DETECTIVITY; CONJUGATED POLYMER; LOW-NOISE; PERFORMANCE; MORPHOLOGY; FILTERLESS; BLIND;
D O I：
10.1021/acs.jpclett.9b03323
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Broad response organic photodetectors (OPDs) with a photomultiplication (PM) effect are achieved with one absorber layer and one multiplication layer. The response range of the PM-OPDs is primarily determined by materials in the absorber layer, and the external quantum efficiency (EQE) of the PM-OPDs is mainly controlled by the multiplication layer. Here, double-layered PM-OPDs were designed with an ITO/ZnO/PM6:Y6/PC71BM:P3HT (100:5, w/w)/Au structure, where PM6:Y6 is employed as an absorber layer and PC71BM:P3HT is used as a multiplication layer. The optimal PM-OPDs exhibit a broad response covering 350-950 nm. Meanwhile, the optimal PM-OPDs exhibit the largest EQE value of similar to 1200% and a maximum specific detectivity (D*) of similar to 6.8 x 10(-12) cm Hz(1/2) W-1 under a 10 V bias. This double-layered approach may be a smart strategy for realizing PM-OPDs with an easily adjustable response range.
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收藏
页码：366 / 373
页数：15
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