FLUORESCENT DECAY TIMES OF EXCITONS BOUND TO OXYGEN TRAPS IN ZNTE-O

Decay Times (tau) of the emission of oxygen bound excitons in ZnTe:O were measured from 5 to 300 K. The temperature dependence of tau is determined by the laser excitation energy: for resonant excitation into the oxygen vibrational band, a new and different behaviour appears with respect to the band to band excitation. Interactions which are responsible for the temperature dependence of tau at different excitation energies are discussed.