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Stretched-exponential photoconductivity decay in nanocrystalline indium oxide

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dc.contributor.author FORSH, Ekaterina
dc.contributor.author ILYIN, Alexander
dc.contributor.author MARTYSHOV, Mikhail
dc.contributor.author FORSH, Pavel
dc.contributor.author KASHKAROV, Pavel
dc.date.accessioned 2019-10-25T13:36:21Z
dc.date.available 2019-10-25T13:36:21Z
dc.date.issued 2013
dc.identifier.citation FORSH, Ekaterina, ILYIN, Alexander, MARTYSHOV, Mikhail, FORSH, Pavel, KASHKAROV, Pavel. Stretched-exponential photoconductivity decay in nanocrystalline indium oxide. In: ICNBME-2013. International Conference on Nanotechnologies and Biomedical Engineering. German-Moldovan Workshop on Novel Nanomaterials for Electronic, Photonic and Biomedical Applications: proc. of the 2th intern. conf., April 18-20, 2013. Chişinău, 2013, pp. 281-285. ISBN 978-9975-62-343-8. en_US
dc.identifier.isbn 978-9975-62-343-8
dc.identifier.uri http://repository.utm.md/handle/5014/5336
dc.description.abstract The effect of ultraviolet light irradiation on the conducting properties of the nanocrystalline In2O3 is studied. Nanocrystalline indium oxide thin films with various nanocrystals size are prepared by solgel method. The mean nanocrystals size varies from 7-8 nm to 18-20 nm depending on conditions of their preparation. A large increase in conductivity by two to four orders of magnitude (depending on the nanocrystals size) is observed with light irradiation. The highly conductive state persists for a timescale of hours at room temperature after illumination. The relaxation rate of this persistent conducting state depends strongly on temperature and environment. The time-dependence of photoconductivity decay in our nanocrystalline In2O3 is governed by the stretched-exponential (William-Watts) relation. The stretchedexponential photodecay can be attributed to the motion of oxygen which exhibits dispersive diffusion with a characteristic power-law time dependence. en_US
dc.language.iso en en_US
dc.publisher Tehnica UTM en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject light irradiation en_US
dc.subject nanocrystalline indium oxide en_US
dc.subject oxygen diffusion en_US
dc.subject persistent photoconductivity en_US
dc.title Stretched-exponential photoconductivity decay in nanocrystalline indium oxide en_US
dc.type Article en_US


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