Materials, Photonic Devices, and Sensors

Spectral properties of ZnO and ZnO-Al2O3 coatings prepared by polymer-salt method

[+] Author Affiliations
Sergey K. Evstropiev

Saint-Petersburg National Research University ITMO, Saint-Petersburg, Kronverskii pr., 49, 197101, Russia

JVC “Vavilov State Optical Institute”, Saint-Petersburg, Kadetskaya liniya, 12, 199034, Russia

Yury A. Gatchin, Kirill S. Evstropyev, Eva B. Romanova

Saint-Petersburg National Research University ITMO, Saint-Petersburg, Kronverskii pr., 49, 197101, Russia

Opt. Eng. 55(4), 047108 (Apr 27, 2016). doi:10.1117/1.OE.55.4.047108
History: Received February 11, 2016; Accepted March 31, 2016
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Abstract.  Experimental results show that the use of film-forming solutions based on zinc and aluminum nitrates and high molecular polyvinylpyrrolidone allows obtaining thin oxide coatings having unusually large bandgap values and transparent in a wide spectral range. The values of the bandgaps of coating materials are significantly higher than the bandgap of bulk ZnO, and it is varied in the range from 3.46 to 4.16 eV, resulting from the metastable structure of the coating.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Sergey K. Evstropiev ; Yury A. Gatchin ; Kirill S. Evstropyev and Eva B. Romanova
"Spectral properties of ZnO and ZnO-Al2O3 coatings prepared by polymer-salt method", Opt. Eng. 55(4), 047108 (Apr 27, 2016). ; http://dx.doi.org/10.1117/1.OE.55.4.047108


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