Visible photoluminescence in K1-xLixTaO3 was found to have similar spectral features but a large increase of emission yield with respect to KTaO3. Studying the temperature dependence of the phenomena and its correlation with photoconductivity, we found direct support for a process in which the emission is due to pair recombination of trapped electron and hole centers, Ta4+ and O+, intrinsic to the matrix.
Study of visible emission in KTaO3 and K1-xLixTaO3
P. GALINETTO;GIULOTTO, ENRICO VIRGILIO;
2000-01-01
Abstract
Visible photoluminescence in K1-xLixTaO3 was found to have similar spectral features but a large increase of emission yield with respect to KTaO3. Studying the temperature dependence of the phenomena and its correlation with photoconductivity, we found direct support for a process in which the emission is due to pair recombination of trapped electron and hole centers, Ta4+ and O+, intrinsic to the matrix.File in questo prodotto:
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