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Low temperature synthesis of ZnGa2O4 : Mn

Abstract : The dependence of the firing conditions on the crystal structure formation of ZnGa2O4 has been investigated. The effects of temperature and atmosphere were examined and gave evidence of the instability of the zinc gallate under a reducing atmosphere at temperatures above 600 degrees C. A new preparation route has allowed to synthesize ZnGa2O4 at low temperature, right from 300 degrees C, avoiding the decomposition of the matrix during the annealing. Moreover, a different behavior under excitation has been observed for the phosphor prepared via this new route compared with the compound obtained by solid state reaction. A model, based on the optical behavior observed, is presented.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00519581
Contributor : Magalie Prudon <>
Submitted on : Tuesday, August 30, 2011 - 2:31:17 PM
Last modification on : Monday, October 12, 2020 - 10:28:01 AM
Long-term archiving on: : Friday, December 2, 2016 - 3:52:12 PM

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  • HAL Id : hal-00519581, version 1

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Christian Beauger, Philippe Grosseau, Bernard Guilhot, Denis Huguenin, Philibert Iacconi. Low temperature synthesis of ZnGa2O4 : Mn. 6th International Conference on Luminescent Materials at the Joint Meeting of the Electrochemical Society/International Society for Electrochemistry, Aug 1997, Paris, France. p. 235-245 - ISBN 1-56677-182-X. ⟨hal-00519581⟩

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