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

IMR OpenIR

	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; Liu, BD; Jiang, X (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci SYNL, IMR, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
	2017-05-07
发表期刊	JOURNAL OF MATERIALS CHEMISTRY C
ISSN	2050-7526
卷号	5 期号:17 页码:4319-4326
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.; 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.
部门归属	[zhang, xinglai ; liu, qingyun ; liu, baodan ; yang, wenjin ; li, jing ; jiang, xin] chinese acad sci, shenyang natl lab mat sci synl, imr, 72 wenhua rd, shenyang 110016, peoples r china ; [liu, qingyun] univ chinese acad sci, 19 a yuquan rd, beijing 100049, peoples r china ; [niu, pingjuan] tianjin polytech univ, sch elect engn & automat, 399 binshuixi rd, tianjin 300387, peoples r china
学科领域	Materials Science, Multidisciplinary ; Physics, Applied
资助者	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]
收录类别	SCI
语种	英语
WOS记录号	WOS:000401102800027
引用统计	被引频次：157[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78141
专题	中国科学院金属研究所
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.
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, X .(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.