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题名: Double-side responsive polymer near-infrared photodetectors with transfer-printed electrode
作者: Xiong, Sixing1; Tong, Jinhui1; Mao, Lin1; Li, Zaifang1; Qin, Fei1; Jiang, Fangyuan1; Meng, Wei1; Liu, Tiefeng1; Li, Weiwei2; Zhou, Yinhua1
刊名: JOURNAL OF MATERIALS CHEMISTRY C
发表日期: 2016
卷: 4, 期:7, 页:1414-1419
收录类别: SCI
英文摘要: Low dark current is critical to realize high-performance near-infrared organic photodetectors (NIR-OPDs). In general, organic photodetectors (OPDs) are with vacuum-deposited metals as the top electrode. The deposition of such metal would inevitably form doping to the organic active layer and thus yield high dark current. Herein, we employ transfer-printed conducting polymer (tp-CP) as the top electrode instead of the vacuum-deposited metal electrode. The photodetector with tp-CP electrode exhibits over two orders of magnitude lower dark current density than the device with the vacuum-deposited metal electrode. The photodetector with tp-CP electrode displays a responsivity of 0.37 A W-1 at 850 nm and a low dark current density of 3.0 nA cm(-2) at -0.2 V based on a near-infrared (NIR) active layer of PMDPP3T: PC61BM that absorbs photons up to 1000 nm. The detectivity of the NIR photodetector reaches as high as over 10(13) Jones. Furthermore, the NIR photodetector is double-side responsive to incident light, either from the bottom or the top electrode, because the top tp-CP electrode shows similar transparency as the bottom indium-tin oxide electrode.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35840
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
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