Ultrahigh near infrared photoresponsive organic field-effect transistors with lead phthalocyanine/Cinf60/inf heterojunction on poly(vinyl alcohol) gate dielectric | |
Sun, L.; J. Zhang; F. Zhao; X. Luo; W. Lv; Y. Li; Q. Ren; Z. Wen; Y. Peng and X. Liu | |
刊名 | Nanotechnology |
2015 | |
卷号 | 26期号:18 |
英文摘要 | Performances of photoresponsive organic field-effect transistors (photOFETs) operating in the near infrared (NIR) region utilizing SiOinf2/inf as the gate dielectric is generally low due to low carrier mobility of the channel. We report on NIR photOFETs based on lead phthalocyanine (PbPc)/Cinf60/inf heterojunction with ultrahigh photoresponsivity by utilizing poly(vinyl alcohol) (PVA) as the gate dielectric. For 808 nm NIR illumination of 1.69 mW cmsup-2/sup, an ultrahigh photoresponsivity of 21 A Wsup-1/sup, and an external quantum efficiency of 3230% were obtained at a gate voltage of 30 V and a drain voltage of 80 V, which are 124 times and 126 times as large as the reference device with SiOinf2/inf as the gate dielectric, respectively. The ultrahigh enhancement of photoresponsivity is resulted from the huge increase of electron mobility of Cinf60/inf film grown on PVA dielectric. AFM investigations revealed that the Cinf60/inf film grown on PVA is much smooth and uniform and the grain size is much larger than that grown on SiOinf2/inf dielectric, which together results in four orders of magnitude increase of the field-effect electron mobility of Cinf60/inf film. 2015 IOP Publishing Ltd. |
收录类别 | EI |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.ciomp.ac.cn/handle/181722/55907] |
专题 | 长春光学精密机械与物理研究所_中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Sun, L.,J. Zhang,F. Zhao,et al. Ultrahigh near infrared photoresponsive organic field-effect transistors with lead phthalocyanine/Cinf60/inf heterojunction on poly(vinyl alcohol) gate dielectric[J]. Nanotechnology,2015,26(18). |
APA | Sun, L..,J. Zhang.,F. Zhao.,X. Luo.,W. Lv.,...&Y. Peng and X. Liu.(2015).Ultrahigh near infrared photoresponsive organic field-effect transistors with lead phthalocyanine/Cinf60/inf heterojunction on poly(vinyl alcohol) gate dielectric.Nanotechnology,26(18). |
MLA | Sun, L.,et al."Ultrahigh near infrared photoresponsive organic field-effect transistors with lead phthalocyanine/Cinf60/inf heterojunction on poly(vinyl alcohol) gate dielectric".Nanotechnology 26.18(2015). |
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