Crystal Structure and Optical Properties of ZnO:Ce Nano Film

ZnO and cerium-doped ZnO on a glass substrate have been prepared by the sol–gel method using the spin coating technique and water bath growth process. Ce-doping concentration on film structure, morphology, and optical properties is investigated. The result indicated that the hexagonal wurtzite ZnO w...

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Main Author: Mei Xin
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/16/5308
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author Mei Xin
author_facet Mei Xin
author_sort Mei Xin
collection DOAJ
description ZnO and cerium-doped ZnO on a glass substrate have been prepared by the sol–gel method using the spin coating technique and water bath growth process. Ce-doping concentration on film structure, morphology, and optical properties is investigated. The result indicated that the hexagonal wurtzite ZnO with high crystalline quality formed on the substrate. The crystal parameters a and c decreased, crystal size increased, and the compressive strain formed after Ce-doping. Formed un-, 3%, 6%, 12% Ce-doped ZnO film has a spherical shape with a size between 8.6–31, 14–52, 18–56, and 20–91 nm, respectively. All films had good absorption of 300–400 nm ultraviolet light, in particular, the absorption of near ultraviolet (370–400 nm) increased after doping of Ce. The transmittance of light between 400–800 nm decreased with Ce-doping concentration. The band gap energy increased after Ce-doping reaching better optical behavior for preparing ZnO heterostructured thin-film. All film emitted intense blue emission under 375 nm excitation at room temperature. This indicated the film can have application in optoelectronic devices.
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spelling doaj.art-d5a5af4751c24727bdf0980543cecff62023-11-30T22:05:42ZengMDPI AGMolecules1420-30492022-08-012716530810.3390/molecules27165308Crystal Structure and Optical Properties of ZnO:Ce Nano FilmMei Xin0School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, ChinaZnO and cerium-doped ZnO on a glass substrate have been prepared by the sol–gel method using the spin coating technique and water bath growth process. Ce-doping concentration on film structure, morphology, and optical properties is investigated. The result indicated that the hexagonal wurtzite ZnO with high crystalline quality formed on the substrate. The crystal parameters a and c decreased, crystal size increased, and the compressive strain formed after Ce-doping. Formed un-, 3%, 6%, 12% Ce-doped ZnO film has a spherical shape with a size between 8.6–31, 14–52, 18–56, and 20–91 nm, respectively. All films had good absorption of 300–400 nm ultraviolet light, in particular, the absorption of near ultraviolet (370–400 nm) increased after doping of Ce. The transmittance of light between 400–800 nm decreased with Ce-doping concentration. The band gap energy increased after Ce-doping reaching better optical behavior for preparing ZnO heterostructured thin-film. All film emitted intense blue emission under 375 nm excitation at room temperature. This indicated the film can have application in optoelectronic devices.https://www.mdpi.com/1420-3049/27/16/5308ZnO:Cethin filmsol-gelnanocrystaloptical propertiesblue emission
spellingShingle Mei Xin
Crystal Structure and Optical Properties of ZnO:Ce Nano Film
Molecules
ZnO:Ce
thin film
sol-gel
nanocrystal
optical properties
blue emission
title Crystal Structure and Optical Properties of ZnO:Ce Nano Film
title_full Crystal Structure and Optical Properties of ZnO:Ce Nano Film
title_fullStr Crystal Structure and Optical Properties of ZnO:Ce Nano Film
title_full_unstemmed Crystal Structure and Optical Properties of ZnO:Ce Nano Film
title_short Crystal Structure and Optical Properties of ZnO:Ce Nano Film
title_sort crystal structure and optical properties of zno ce nano film
topic ZnO:Ce
thin film
sol-gel
nanocrystal
optical properties
blue emission
url https://www.mdpi.com/1420-3049/27/16/5308
work_keys_str_mv AT meixin crystalstructureandopticalpropertiesofznocenanofilm