Synthesis of copper doped Zinc oxide nanowires with enhanced ultraviolet photoresponse behavior

S. P. Ghosh; K. C. Das; N. Tripathy; A. Moharana; A. Adhikari; G. Bose; D. H. Kim; T. I. Lee; J. M. Myoung; J. P. Kar

doi:10.1088/1757-899X/178/1/012021

Synthesis of copper doped Zinc oxide nanowires with enhanced ultraviolet photoresponse behavior

S. P. Ghosh, K. C. Das, N. Tripathy, A. Moharana, A. Adhikari, G. Bose, D. H. Kim, T. I. Lee, J. M. Myoung, J. P. Kar

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

This work mainly focused on the synthesis of copper doped zinc oxide nanowires by hydrothermal method, their characterization and their ultraviolet (UV) light sensing response at room temperature. The structural and morphological characterization was carried out using X-ray diffraction and scanning electron microscopy. Enhanced ultraviolet (UV) photodetection property has been achieved for a dopant concentration of 2.5wt% and 5wt% showing UV photosensitivity values (photo-to-dark current ratio) of around 800 and 1800, respectively. This is an order of magnitude higher than the undoped ZnO nanowires. High photocurrent gain is attributed to the trapping of carriers under dark and detrapping them under UV illumination by Cu-related defects. Enhancement in photosensitivity indicates that Cu-doped ZnO nanowires are promising candidates for UV photodetection applications.

Original language	English
Article number	012021
Journal	IOP Conference Series: Materials Science and Engineering
Volume	178
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/178/1/012021
Publication status	Published - 2017 Mar 1
Event	6th National Conference on Processing and Characterization of Materials, NCPCM 2016 - Rourkela, Odisha, India Duration: 2016 Dec 9 → 2016 Dec 10

Bibliographical note

Funding Information:
This research was also supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (Grant number: 2012K1A3A1A19038371).

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Engineering(all)

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10.1088/1757-899X/178/1/012021

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title = "Synthesis of copper doped Zinc oxide nanowires with enhanced ultraviolet photoresponse behavior",

abstract = "This work mainly focused on the synthesis of copper doped zinc oxide nanowires by hydrothermal method, their characterization and their ultraviolet (UV) light sensing response at room temperature. The structural and morphological characterization was carried out using X-ray diffraction and scanning electron microscopy. Enhanced ultraviolet (UV) photodetection property has been achieved for a dopant concentration of 2.5wt% and 5wt% showing UV photosensitivity values (photo-to-dark current ratio) of around 800 and 1800, respectively. This is an order of magnitude higher than the undoped ZnO nanowires. High photocurrent gain is attributed to the trapping of carriers under dark and detrapping them under UV illumination by Cu-related defects. Enhancement in photosensitivity indicates that Cu-doped ZnO nanowires are promising candidates for UV photodetection applications.",

author = "Ghosh, {S. P.} and Das, {K. C.} and N. Tripathy and A. Moharana and A. Adhikari and G. Bose and Kim, {D. H.} and Lee, {T. I.} and Myoung, {J. M.} and Kar, {J. P.}",

note = "Funding Information: This research was also supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (Grant number: 2012K1A3A1A19038371). Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 6th National Conference on Processing and Characterization of Materials, NCPCM 2016 ; Conference date: 09-12-2016 Through 10-12-2016",

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doi = "10.1088/1757-899X/178/1/012021",

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T1 - Synthesis of copper doped Zinc oxide nanowires with enhanced ultraviolet photoresponse behavior

AU - Ghosh, S. P.

AU - Das, K. C.

AU - Tripathy, N.

AU - Moharana, A.

AU - Adhikari, A.

AU - Bose, G.

AU - Kim, D. H.

AU - Lee, T. I.

AU - Myoung, J. M.

AU - Kar, J. P.

N1 - Funding Information: This research was also supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (Grant number: 2012K1A3A1A19038371). Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - This work mainly focused on the synthesis of copper doped zinc oxide nanowires by hydrothermal method, their characterization and their ultraviolet (UV) light sensing response at room temperature. The structural and morphological characterization was carried out using X-ray diffraction and scanning electron microscopy. Enhanced ultraviolet (UV) photodetection property has been achieved for a dopant concentration of 2.5wt% and 5wt% showing UV photosensitivity values (photo-to-dark current ratio) of around 800 and 1800, respectively. This is an order of magnitude higher than the undoped ZnO nanowires. High photocurrent gain is attributed to the trapping of carriers under dark and detrapping them under UV illumination by Cu-related defects. Enhancement in photosensitivity indicates that Cu-doped ZnO nanowires are promising candidates for UV photodetection applications.

AB - This work mainly focused on the synthesis of copper doped zinc oxide nanowires by hydrothermal method, their characterization and their ultraviolet (UV) light sensing response at room temperature. The structural and morphological characterization was carried out using X-ray diffraction and scanning electron microscopy. Enhanced ultraviolet (UV) photodetection property has been achieved for a dopant concentration of 2.5wt% and 5wt% showing UV photosensitivity values (photo-to-dark current ratio) of around 800 and 1800, respectively. This is an order of magnitude higher than the undoped ZnO nanowires. High photocurrent gain is attributed to the trapping of carriers under dark and detrapping them under UV illumination by Cu-related defects. Enhancement in photosensitivity indicates that Cu-doped ZnO nanowires are promising candidates for UV photodetection applications.

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DO - 10.1088/1757-899X/178/1/012021

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AN - SCOPUS:85016194115

SN - 1757-8981

VL - 178

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

IS - 1

M1 - 012021

T2 - 6th National Conference on Processing and Characterization of Materials, NCPCM 2016

Y2 - 9 December 2016 through 10 December 2016

ER -

Synthesis of copper doped Zinc oxide nanowires with enhanced ultraviolet photoresponse behavior

Abstract

Bibliographical note

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