Transient Photoconductivity in Nanocrystalline Indium Oxideстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:In this work we observe persistent photoconductivity in nanocrystalline indium oxide (In2O3) with various nanocrystals size (7-20 nm). The highly conductive state persists for a timescale of hours at room temperature after illumination. The time-dependence of photoconductivity decay in nanocrystalline In2O3 is governed by the stretched-exponential relation. We propose the model clearing up the phenomenon of permanent photoconductivity decay in nanocrystalline In2O3 and find out the correlations between the microstructure parameters and photoelectrical properties. We find out that a large increase in conductivity with light irradiation and stretched-exponential photoconductivity decay can be attributed to the dispersive diffusion of oxygen.