Realization of a self-powered ZnO MSM UV photodetector with high responsivity using an asymmetric pair of Au electrodes

	Realization of a self-powered ZnO MSM UV photodetector with high responsivity using an asymmetric pair of Au electrodes
	Chen H. Y.; Liu K. W.; Chen X.; Zhang Z. Z.; Fan M. M.; Jiang M. M.; Xie X. H.; Zhao H. F.; Shen D. Z.
	2014
发表期刊	Journal of Materials Chemistry C
ISSN	ISBN/2050-7526
卷号	2 期号:45 页码:9689-9694
摘要	We demonstrate a novel type of ZnO self-powered photodetector based on the asymmetric metal-semiconductor-metal (MSM) structure: one Au interdigitated electrode with wide fingers and the other one with narrow fingers. These ZnO photodetectors exhibit attractive photovoltaic characteristics at 0 V bias. More interestingly, with increasing the asymmetric ratio (the width of wide fingers : the width of narrow fingers) of the interdigitated electrodes, the responsivity of the ZnO self-powered UV photodetectors was enhanced obviously, reaching as high as 20 mA W-1 when the asymmetric ratio was 20 : 1. A physical model based on band energy theory was developed to illustrate the origin of the photoresponse at 0 V in our device. Our findings provide a new route to realizing self-powered photodetectors.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/44310
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Chen H. Y.,Liu K. W.,Chen X.,et al. Realization of a self-powered ZnO MSM UV photodetector with high responsivity using an asymmetric pair of Au electrodes[J]. Journal of Materials Chemistry C,2014,2(45):9689-9694.
APA	Chen H. Y..,Liu K. W..,Chen X..,Zhang Z. Z..,Fan M. M..,...&Shen D. Z..(2014).Realization of a self-powered ZnO MSM UV photodetector with high responsivity using an asymmetric pair of Au electrodes.Journal of Materials Chemistry C,2(45),9689-9694.
MLA	Chen H. Y.,et al."Realization of a self-powered ZnO MSM UV photodetector with high responsivity using an asymmetric pair of Au electrodes".Journal of Materials Chemistry C 2.45(2014):9689-9694.

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