Temperature dependence of the photoluminescence spectra in AgGaS2

RICCI, P. C.; ANEDDA, A.; CORPINO, R.; CARBONARO, C. M.; MARCEDDU, M.; TIGINYANU, I. M.; URSAKI, V. V.

Temperature dependence of the photoluminescence spectra in AgGaS2

RICCI, P. C.; ANEDDA, A.; CORPINO, R.; CARBONARO, C. M.; MARCEDDU, M.; TIGINYANU, I. M.; URSAKI, V. V.

URI: https://doi.org/10.1016/j.jpcs.2005.09.034
http://repository.utm.md/handle/5014/11526

Date: 2005

Abstract:

The Silver Gallium Sulfide (AgGaS2) ternary compound is a wide bandgap semiconductor (about 2.7eV) whose photoluminescence properties are characterized by excitons and donor–acceptor pairs recombinations. We have performed photoluminescence (PL) measurement exciting with the third harmonic (3.5eV) of a Nd:YAG laser from room temperature down to 10K at different excitation power. In this work we report the dependence of the ‘green band’ on the excitation power at various temperatures.