Giant UV photoresponse of a GaN nanowire photodetector through effective Pt nanoparticle coupling

CORC > 金属研究所 > 中国科学院金属研究所

	Giant UV photoresponse of a GaN nanowire photodetector through effective Pt nanoparticle coupling
	Zhang, Xinglai ; Liu, Qingyun ; Liu, Baodan ; Yang, Wenjin ; Li, Jing ; Niu, Pingjuan ; Jiang, Xin
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2017-05-07
卷号	5 期号:17 页码:4319-4326
ISSN号	2050-7526
通讯作者	Liu, BD ; Jiang, X (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci SYNL, IMR, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
中文摘要	High performance ultraviolet (UV) photodetectors based on semiconducting nanowires are expected to have extensive applications in UV-ray detection, optical communication and environmental monitoring. In this work, GaN nanowire photodetectors have been fabricated and giant UV photoresponse has been achieved with Pt nanoparticle (NP) modification. The peak responsivity and external quantum efficiency (EQE) of the GaN nanowire UV photodetector were increased from 773 to 6.39 x 10(4) A W (1) and from 2.71 x 10(5)% to 2.24 x 10(7)%, respectively, and the response time and sensitivity were improved greatly after Pt NP decoration on the GaN nanowire surface. Moreover, the Pt-GaN nanowire photodetector still presents its spectrum selectivity in the UV region. Our results reveal that Pt nanoparticles play a key role in enhancing the photodetection performance of the nanodevice due to the strong absorption and scattering of incident light induced by localized surface plasmon resonance (LSPR) and the improvement of interfacial charge separation owing to the special device configuration. These findings offer an efficient avenue toward the performance enhancement of GaN nanowire and related optoelectronic devices or systems.
学科主题	Materials Science, Multidisciplinary ; Physics, Applied
收录类别	SCI
资助信息	Knowledge Innovation Program of Institute of Metal Research, Chinese Academy of Sciences [Y2NCA111A1, Y3NCA111A1]; Youth Innovation Promotion Association, Chinese Academy of Sciences [Y4NC711171]; Basic Science Innovation Program of Shenyang National Laboratory for Materials Science [Y4NC6R1161]; National Torch Plan [2015GHA100042B00]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78141]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Zhang, Xinglai,Liu, Qingyun,Liu, Baodan,et al. Giant UV photoresponse of a GaN nanowire photodetector through effective Pt nanoparticle coupling[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(17):4319-4326.
APA	Zhang, Xinglai.,Liu, Qingyun.,Liu, Baodan.,Yang, Wenjin.,Li, Jing.,...&Jiang, Xin.(2017).Giant UV photoresponse of a GaN nanowire photodetector through effective Pt nanoparticle coupling.JOURNAL OF MATERIALS CHEMISTRY C,5(17),4319-4326.
MLA	Zhang, Xinglai,et al."Giant UV photoresponse of a GaN nanowire photodetector through effective Pt nanoparticle coupling".JOURNAL OF MATERIALS CHEMISTRY C 5.17(2017):4319-4326.