文献类型：期刊文献

英文题名：Hybrid Organic/PbS Quantum Dot Bilayer Photodetector with Low Dark Current and High Detectivity

作者：Wei, Yuanzhi[1,2];Ren, Zhenwei[1,3,4];Zhang, Andong[1,2];Mao, Peng[1,2];Li, Hui[1];Zhong, Xinhua[3,4];Li, Weiwei[1,2];Yang, Shiyong[1,2];Wang, Jizheng[1,2]

机构：[1]Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China;[2]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[3]South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China

年份：2018

卷号：28

期号：11

外文期刊名：ADVANCED FUNCTIONAL MATERIALS

收录：;EI(收录号：20181104889666);WOS:【SCI-EXPANDED(收录号:WOS:000427110100030)】；

基金：This research is supported by 973 Program (2014CB643600 and 2014CB643503), the National Basic Research Program of China (2013CB632103), the National Natural Science Foundation of China (61474094, 61405208), National Key Research Program of China (2016YFA0200104) and the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB12030200).

语种：英文

外文关键词：bilayers photodetectors; detectivity; organic photodetectors; PbS quantum dots; photodetectors

摘要：Owing to their ease of fabrication, low cost, and high flexibility, organic materials have attracted great interests in photodetector (PD) applications. However, suffering from large dark current, small photocurrent, low on-off ratio, and low sensitivity, performances of bare organic-based PDs are not satisfactory. Integrating organic materials with other novel semiconductor materials offers an opportunity to overcome these drawbacks. Here, a lateral hybrid organic/lead sulfide (PbS) quantum dot bilayer PD is designed and fabricated, which significantly suppresses the dark current and enhances the photocurrent, leading to improved light detecting capability. Meanwhile, the bilayer PD can be made on a flexible polyimide substrate.