An X-ray Photoelectron Spectroscopy Study of Ultraviolet Photoannealing-Induced Surface Transformations of Sol–Gel Derived Zinc Oxide-Based Films

— X-ray photoelectron spectroscopy has been used to study structural evolution of zinc oxide synthesized by a sol–gel process adapted to flexible electronics. We assessed the effect of ultraviolet irradiation time on the atomic percentages of different Zn, O, and C species. Increasing the UV treatme...

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Bibliographic Details
Published in:Inorganic materials 2022-11, Vol.58 (11), p.1145-1151
Main Authors: Karmanov, A. A., Pronin, I. A., Yakushova, N. D., Komolov, A. S., Moshnikov, V. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Flexible components
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Oxygen enrichment
Photoelectron spectroscopy
Photoelectrons
Pyrolytic graphite
Sol-gel processes
Solid solutions
Spectroscopic analysis
Surface layers
Surface structure
Ultraviolet radiation
X ray photoelectron spectroscopy
Zinc oxide
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Summary:— X-ray photoelectron spectroscopy has been used to study structural evolution of zinc oxide synthesized by a sol–gel process adapted to flexible electronics. We assessed the effect of ultraviolet irradiation time on the atomic percentages of different Zn, O, and C species. Increasing the UV treatment time from 90 to 150 min has been shown to considerably reduce zinc concentration in the surface layer, which is accompanied by an increase in the percentage of carbon, predominantly in the form of highly oriented pyrolytic graphite. Photoactivation processes ensure completion of surface structure formation and lead to enrichment of the ZnO surface in oxygen with a binding energy of 531.5 eV, resulting in a zinc-deficient solid solution.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168522110073