University of Cagliari
Temperature dependence of the photoluminescence spectra in AgGaS2
RICCI, PIER CARLO;CORPINO, RICCARDO;CARBONARO, CARLO MARIA;MARCEDDU, MARCO;
2005-01-01
Abstract
The Silver Gallium Sulfide (AgGaS2) ternary compound is a wide bandgap semiconductor (about 2.7 eV) whose photoluminescence properties are characterized by excitons and donor-acceptor pairs recombinations. We have performed photoluminescence (PL) measurement exciting with the third harmonic (3.5 eV) of a Nd:YAG laser from room temperature down to 10 K at different excitation power. In this work we report the dependence of the 'green band' on the excitation power at various temperatures. (c) 2005 Elsevier Ltd. All rights reserved.
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