Sa. Basun et al., PHOTOIONIZATION, TRAPPING AND RECOMBINATION PROCESSES IN OPTICALLY-EXCITED LI2GE7O16-CR CRYSTALS, Journal of luminescence, 58(1-6), 1994, pp. 281-283
In chromium doped Li2Ge7O15 (LGO) crystals the stationary photocurrent
dependence on the visible optical pumping intensity and the effect of
additional IR illumination on the photocurrent drastically depend on
the content of Cr ions in different charge states. A model of photoion
ization, trapping and recombination processes in optically excited LGO
:Cr crystals is proposed.