Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering

Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering

A comparative study of the electrical and photodetection properties of ZnO and Cr doped ZnO thin films are being reported here. The films were deposited using magnetron sputtering. X-ray diffraction (XRD) revealed hexagonal crystal structure of the films with (002) preferred orientation. Pt/ZnO/Pt a...

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Main Authors: Fareed, S., Jamil, Arifa, Tiwari, Naveen, Rafiq, M. A.
Other Authors: Energy Research Institute @ NTU (ERI@N)
Format: Article
Language:English
Published: 2019
Subjects:
Science::Chemistry
Thin Films
Chromium-doped Zinc Oxide
Online Access:https://hdl.handle.net/10356/90326
http://hdl.handle.net/10220/49441
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-903262021-01-08T02:29:52Z Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering Fareed, S. Jamil, Arifa Tiwari, Naveen Rafiq, M. A. Energy Research Institute @ NTU (ERI@N) Science::Chemistry Thin Films Chromium-doped Zinc Oxide A comparative study of the electrical and photodetection properties of ZnO and Cr doped ZnO thin films are being reported here. The films were deposited using magnetron sputtering. X-ray diffraction (XRD) revealed hexagonal crystal structure of the films with (002) preferred orientation. Pt/ZnO/Pt and Pt/Cr doped ZnO/Pt Schottky diodes were fabricated for photodetection studies. The Schottky barrier height was lowered for Cr doped ZnO film as compared to ZnO film. The ideality factor was improved upon Cr doping. Pt/ZnO/Pt diode was unresponsive to visible light, however, Pt/Cr doped ZnO/Pt diode showed response to visible light with short response and recovery times. The response of the Pt/Cr doped ZnO/Pt diodes to visible light is attributed to the reduction in band gap of the Cr doped ZnO thin film. Published version 2019-07-19T02:29:08Z 2019-12-06T17:45:48Z 2019-07-19T02:29:08Z 2019-12-06T17:45:48Z 2019 Journal Article Fareed, S., Jamil, A., Tiwari, N., & Rafiq, M. A. (2019). Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering. Micro and Nano Engineering, 2, 48-52. doi:10.1016/j.mne.2018.12.003 https://hdl.handle.net/10356/90326 http://hdl.handle.net/10220/49441 10.1016/j.mne.2018.12.003 en Micro and Nano Engineering © 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 5 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Chemistry
Thin Films
Chromium-doped Zinc Oxide
spellingShingle Science::Chemistry
Thin Films
Chromium-doped Zinc Oxide
Fareed, S.
Jamil, Arifa
Tiwari, Naveen
Rafiq, M. A.
Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering
description A comparative study of the electrical and photodetection properties of ZnO and Cr doped ZnO thin films are being reported here. The films were deposited using magnetron sputtering. X-ray diffraction (XRD) revealed hexagonal crystal structure of the films with (002) preferred orientation. Pt/ZnO/Pt and Pt/Cr doped ZnO/Pt Schottky diodes were fabricated for photodetection studies. The Schottky barrier height was lowered for Cr doped ZnO film as compared to ZnO film. The ideality factor was improved upon Cr doping. Pt/ZnO/Pt diode was unresponsive to visible light, however, Pt/Cr doped ZnO/Pt diode showed response to visible light with short response and recovery times. The response of the Pt/Cr doped ZnO/Pt diodes to visible light is attributed to the reduction in band gap of the Cr doped ZnO thin film.
author2 Energy Research Institute @ NTU (ERI@N)
author_facet Energy Research Institute @ NTU (ERI@N)
Fareed, S.
Jamil, Arifa
Tiwari, Naveen
Rafiq, M. A.
format Article
author Fareed, S.
Jamil, Arifa
Tiwari, Naveen
Rafiq, M. A.
author_sort Fareed, S.
title Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering
title_short Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering
title_full Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering
title_fullStr Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering
title_full_unstemmed Influence of Cr doping on Schottky barrier height and visible light detection of ZnO thin films deposited by magnetron sputtering
title_sort influence of cr doping on schottky barrier height and visible light detection of zno thin films deposited by magnetron sputtering
publishDate 2019
url https://hdl.handle.net/10356/90326
http://hdl.handle.net/10220/49441
_version_ 1688665565406691328

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