Photoluminescence in powdered crystalline GeSe 2
Abstract
The decrease of photoluminiscence (PL) intensity under continuous excitation in powdered crystalline GeSe 2 was observed at 77 K. The intensity of PL decreased by ∼ 50 % in 2.10 3s. The characteristics of the PL band for the powdered samples at 77 K are identical with those for crystals, but the temperature dependence of the PL intensity and the peak of the PL spectrum in the temperature range 77-200 K for powdered and bulk crystalline samples are different.
- Publication:
-
Solid State Communications
- Pub Date:
- April 1980
- DOI:
- 10.1016/0038-1098(80)90617-1
- Bibcode:
- 1980SSCom..34....5K