Tuning the band gap of ZnO thin films by Mg doping

© 2016 Trans Tech Publications, Switzerland. Structural, morphological, optical and electrical properties of magnesium (Mg) doped zinc oxide (ZnO) films were prepared by the ultrasonic spray pyrolysis technique on a microscope glass substrate, and have been studied in terms of the Mg doping content....

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Main Authors: Thonglem S., Suksri C., Pengpat K., Rujijanagul G., Eitssayeam S., Intatha U., Tunkasiri T.
Format: Book Series
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84969921352&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/42484
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-424842017-09-28T04:27:19Z Tuning the band gap of ZnO thin films by Mg doping Thonglem S. Suksri C. Pengpat K. Rujijanagul G. Eitssayeam S. Intatha U. Tunkasiri T. © 2016 Trans Tech Publications, Switzerland. Structural, morphological, optical and electrical properties of magnesium (Mg) doped zinc oxide (ZnO) films were prepared by the ultrasonic spray pyrolysis technique on a microscope glass substrate, and have been studied in terms of the Mg doping content. The precursor solutions of Mg doped ZnO films were prepared from zinc acetate dihydrate (Zn(CH 3 OO) 2 ·2H 2 O) and magnesium acetate tetrahydrate (CH 3 COO) 2 Mg·4H 2 O) as dopant. The compositions of these solutions were fixed at 0.02 M of Zn(CH 3 OO) 2 .2H 2 O and the atomic percentage ratio of Mg/Zn varied from 0 to 20 atomic %. The XRD patterns of all films showed ZnO hexagonal wurtzite structure and the morphology showed homogeneous structure/texture being pinhole-free with added Mg content. It was found that Mg2+ ions did not change conductivity of ZnO films due to the partial substitution of Zn2+ ion with the same valence Mg2+ ion. For optical properties, all films showed high transmittance over 80% and absorbance around 0.01 in the visible and near infrared regions. Moreover, the Mg dopant affects the shift of the absorption edge in the transmittance spectra of the films to a lower wavelength in the ultraviolet region and increases the band gap of the samples. 2017-09-28T04:27:19Z 2017-09-28T04:27:19Z 2016-01-01 Book Series 10139826 2-s2.0-84969921352 10.4028/www.scientific.net/KEM.690.131 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84969921352&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/42484
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2016 Trans Tech Publications, Switzerland. Structural, morphological, optical and electrical properties of magnesium (Mg) doped zinc oxide (ZnO) films were prepared by the ultrasonic spray pyrolysis technique on a microscope glass substrate, and have been studied in terms of the Mg doping content. The precursor solutions of Mg doped ZnO films were prepared from zinc acetate dihydrate (Zn(CH 3 OO) 2 ·2H 2 O) and magnesium acetate tetrahydrate (CH 3 COO) 2 Mg·4H 2 O) as dopant. The compositions of these solutions were fixed at 0.02 M of Zn(CH 3 OO) 2 .2H 2 O and the atomic percentage ratio of Mg/Zn varied from 0 to 20 atomic %. The XRD patterns of all films showed ZnO hexagonal wurtzite structure and the morphology showed homogeneous structure/texture being pinhole-free with added Mg content. It was found that Mg2+ ions did not change conductivity of ZnO films due to the partial substitution of Zn2+ ion with the same valence Mg2+ ion. For optical properties, all films showed high transmittance over 80% and absorbance around 0.01 in the visible and near infrared regions. Moreover, the Mg dopant affects the shift of the absorption edge in the transmittance spectra of the films to a lower wavelength in the ultraviolet region and increases the band gap of the samples.
format Book Series
author Thonglem S.
Suksri C.
Pengpat K.
Rujijanagul G.
Eitssayeam S.
Intatha U.
Tunkasiri T.
spellingShingle Thonglem S.
Suksri C.
Pengpat K.
Rujijanagul G.
Eitssayeam S.
Intatha U.
Tunkasiri T.
Tuning the band gap of ZnO thin films by Mg doping
author_facet Thonglem S.
Suksri C.
Pengpat K.
Rujijanagul G.
Eitssayeam S.
Intatha U.
Tunkasiri T.
author_sort Thonglem S.
title Tuning the band gap of ZnO thin films by Mg doping
title_short Tuning the band gap of ZnO thin films by Mg doping
title_full Tuning the band gap of ZnO thin films by Mg doping
title_fullStr Tuning the band gap of ZnO thin films by Mg doping
title_full_unstemmed Tuning the band gap of ZnO thin films by Mg doping
title_sort tuning the band gap of zno thin films by mg doping
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84969921352&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/42484
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