Issue 17, 2009

In situ investigation of coloration processes in LiNbO3 : MgO during reducing/oxidizing high-temperature treatments

Abstract

The work presents experimental results of an in situ investigation of optical absorption of LiNbO3 : MgO during reducing (95%Ar + 5%H2) and oxidizing (O2) high-temperature treatments in the temperature range from room temperature to 1073 K. The absorption spectra measured at in situ conditions at high temperatures in reducing/oxidizing atmospheres as well as the kinetics recorded at fixed wavelengths during rapid replacement of gas atmospheres have been analyzed. The origin of the changes in optical absorption caused by the reducing/oxidizing treatments is discussed in terms of hydrogen and oxygen ion diffusion and the point defect structure of the material.

Graphical abstract: In situ investigation of coloration processes in LiNbO3 : MgO during reducing/oxidizing high-temperature treatments

Article information

Article type
Paper
Submitted
17 Dec 2008
Accepted
11 Feb 2009
First published
10 Mar 2009

Phys. Chem. Chem. Phys., 2009,11, 3138-3143

In situ investigation of coloration processes in LiNbO3 : MgO during reducing/oxidizing high-temperature treatments

D. Sugak, Y. Zhydachevskii, Y. Sugak, O. Buryy, S. Ubizskii, I. Solskii, A. Börger and K. Becker, Phys. Chem. Chem. Phys., 2009, 11, 3138 DOI: 10.1039/B822631H

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