Article (Scientific journals)
Influence of Fluorine and Nitrogen Co-Doping on the Structural and Morphological Properties of Sol-Gel ZnO Films
Ivanova, Tatyana; Harizanova, Antoaneta; Koutzarova, Tatyana et al.
2022In Coatings, 12 (12), p. 1874
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Keywords :
annealing temperatures; F:N dual doped ZnO; optical properties; sol-gel based coating; structure; thin films; Surfaces and Interfaces; Surfaces, Coatings and Films; Materials Chemistry
Abstract :
[en] The structural, vibrational, optical and morphological properties of ZnO:N:F films, obtained by the sol-gel method, were investigated. The effect of single (fluorine, nitrogen) and F, N co-doping and thermal treatments (300–600 °C) on the properties of ZnO films was analyzed. X-ray Diffraction (XRD) revealed that ZnO:N:F films crystallized in a polycrystalline wurtzite structure. F and N incorporation changed lattice parameters, crystallite sizes, texture coefficients (TC) and residual stress. TC (002) of ZnO:N:F films increased with annealing, reaching 1.94 at 600 °C lower than the TC (002) of ZnO and ZnO:N films. The shifting of the characteristic absorption bands and/or the appearance of new IR lines were detected for ZnO:N:F samples. The highest transmittance (90.98%) in the visible spectral region was found for ZnO:F films. ZnO:N:F films possessed optical transparency up to 88.18% and their transmittance decreased at the higher annealings. The optical band gap (Eg) values of ZnO:N:F films were changed with fluorine and nitrogen concentrations. The formation of the wrinkle-like structures on the surface of ZnO and ZnO:N films was depicted in Field Emission Scanning Electron Microscopy (FESEM) images. The F, N dual doping modified ZnO morphology and suppressed wrinkle formation.
Disciplines :
Chemistry
Author, co-author :
Ivanova, Tatyana;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Sofia, Bulgaria
Harizanova, Antoaneta;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Sofia, Bulgaria
Koutzarova, Tatyana ;  Institute of Electronics, Bulgarian Academy of Sciences, Sofia, Bulgaria
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Closset, Raphaël ;  Université de Liège - ULiège > Département de chimie (sciences)
Language :
English
Title :
Influence of Fluorine and Nitrogen Co-Doping on the Structural and Morphological Properties of Sol-Gel ZnO Films
Publication date :
December 2022
Journal title :
Coatings
eISSN :
2079-6412
Publisher :
MDPI
Volume :
12
Issue :
12
Pages :
1874
Peer reviewed :
Peer Reviewed verified by ORBi
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