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Photoluminescence of Eu3+-Doped TiO2 Thin Films Prepared by Sol-Gel Method
Abstract:
The sol-gel method was employed to prepare the Eu3+-doped TiO2 thin films. The influence of doping concentration and annealing temperature on the structures and photoluminescence (PL) properties was investigated. The result of X-ray diffraction revealed that all the films are of anatase phase. It is shown that the PL intensities of the films increased with Eu3+ concentration and reached the maximum at 1.4 mol%, then decreased with the concentration. Observed anatase phase appeared at temperature above 400 °C, and the luminescence intensity increased with the increase of annealing temperature.
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707-710
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Online since:
October 2010
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© 2011 Trans Tech Publications Ltd. All Rights Reserved
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