INFLUENCE OF MICROCRYSTALLITE SIZE ON PHOTODARKENING EFFECTS IN CDS-DOPED GLASSES

Size dependence of photodarkening effects in CdS-doped glasses was inv estigated using luminescence and electron spin resonance (ESR). As the microcrystallite size decreases, the ESR signal associated with the p hotodarkening effects increases. This result indicates that the photoi nduced centers responsible for the photodarkening effects are created in the interface region between CdS microcrystals and glass matrix.