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Optical, structural...
Optical, structural and electrochromic properties of sputter deposited W-Mo oxide thin films
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- Gesheva, Kostadinka (author)
- Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences
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- Arvizu, Miguel A (author)
- Uppsala universitet,Fasta tillståndets fysik
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- Bodurov, Georgij (author)
- Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences
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- Ivanova, Tatiana (author)
- Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences
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- Niklasson, Gunnar A., 1953- (author)
- Uppsala universitet,Fasta tillståndets fysik
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- Iliev, M (author)
- Institute of Solid State Physics, Bulgarian Academy of Sciences
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- Vlakhov, T (author)
- Institute of Solid State Physics, Bulgarian Academy of Sciences
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- Terzijska, P (author)
- Institute of Solid State Physics, Bulgarian Academy of Sciences
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- Popkirov, G (author)
- Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences
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- Abrashev, M (author)
- Faculty of Physics, Sofia University, Bulgaria
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- Boyadjiev, Stefan (author)
- Institute of Solid State Physics, Bulgarian Academy of Sciences
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- Jagerszki, G (author)
- MTA-BME Technical Analytical Chemistry Research Group, Budapest, Hungary
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- Szilagyi, I M (author)
- MTA-BME Technical Analytical Chemistry Research Group, Budapest, Hungary
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- Marinov, Yordan (author)
- Institute of Solid State Physics, Bulgarian Academy of Sciences
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(creator_code:org_t)
- 2016-11-15
- 2016
- English.
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In: INERA CONFERENCE. - : Institute of Physics Publishing (IOPP).
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Abstract
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- Thin metal oxide films were investigated by a series of characterization techniques including impedance spectroscopy, spectroscopic ellipsometry, Raman spectroscopy, and Atomic Force Microscopy. Thin film deposition by reactive DC magnetron sputtering was performed at the Ångström Laboratory. W and Mo targets (5 cm diameter) and various oxygen gas flows were employed to prepare samples with different properties, whereas the gas pressure was kept constant at about 30 mTorr. The substrates were 5×5 cm2 plates of unheated glass pre-coated with ITO having a resistance of 40 ohm/sq. Film thicknesses were around 300nm as determined by surface profilometry. Newly acquired equipment was used to study optical spectra, optoelectronic properties, and film structure. Films of WO3 and of mixed W–Mo oxide with three compositions showed coloring and bleaching under the application of a small voltage. Cyclic voltammograms were recorded with a scan rate of 5 mV s–1. Ellipsometric data for the optical constants show dependence on the amount of MoOx in the chemical composition. Single MoOx film, and the mixed one with only 8% MoOx have the highest value of refractive index, and similar dispersion in the visible spectral range. Raman spectra displayed strong lines at wavenumbers between 780 cm–1 and 950 cm–1 related to stretching vibrations of WO3, and MoO3. AFM gave evidence for domains of different composition in mixed W-Mo oxide films.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Keyword
- Engineering Science with specialization in Solid State Physics
- Teknisk fysik med inriktning mot fasta tillståndets fysik
Publication and Content Type
- ref (subject category)
- kon (subject category)
To the university's database
- By the author/editor
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Gesheva, Kostadi ...
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Arvizu, Miguel A
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Bodurov, Georgij
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Ivanova, Tatiana
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Niklasson, Gunna ...
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Iliev, M
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Vlakhov, T
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Terzijska, P
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Popkirov, G
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Abrashev, M
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Boyadjiev, Stefa ...
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Jagerszki, G
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Szilagyi, I M
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Marinov, Yordan
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
- Articles in the publication
- INERA CONFERENCE
- By the university
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Uppsala University