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: Sutatip Thonglem, Chavalit Suksri, Kamonpan Pengpat, Gobwute Rujijanagul, Sukum Eitssayeam, Uraiwan Intatha, Tawee Tunkasiri
Format: Book Series
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/55822
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-558222018-09-05T03:05:33Z Tuning the band gap of ZnO thin films by Mg doping Sutatip Thonglem Chavalit Suksri Kamonpan Pengpat Gobwute Rujijanagul Sukum Eitssayeam Uraiwan Intatha Tawee Tunkasiri Engineering Materials Science © 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(CH3OO)2·2H2O) and magnesium acetate tetrahydrate (CH3COO)2Mg·4H2O) as dopant. The compositions of these solutions were fixed at 0.02 M of Zn(CH3OO)2.2H2O 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. 2018-09-05T03:01:54Z 2018-09-05T03:01:54Z 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/6653943832/55822
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
spellingShingle Engineering
Materials Science
Sutatip Thonglem
Chavalit Suksri
Kamonpan Pengpat
Gobwute Rujijanagul
Sukum Eitssayeam
Uraiwan Intatha
Tawee Tunkasiri
Tuning the band gap of ZnO thin films by Mg doping
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(CH3OO)2·2H2O) and magnesium acetate tetrahydrate (CH3COO)2Mg·4H2O) as dopant. The compositions of these solutions were fixed at 0.02 M of Zn(CH3OO)2.2H2O 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 Sutatip Thonglem
Chavalit Suksri
Kamonpan Pengpat
Gobwute Rujijanagul
Sukum Eitssayeam
Uraiwan Intatha
Tawee Tunkasiri
author_facet Sutatip Thonglem
Chavalit Suksri
Kamonpan Pengpat
Gobwute Rujijanagul
Sukum Eitssayeam
Uraiwan Intatha
Tawee Tunkasiri
author_sort Sutatip Thonglem
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 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84969921352&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55822
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