Photoconduction in GaSe single crystal

Abstract
Photoconduction measurements in the photon energy range 1[sdot]5 eV–6[sdot]2 eV have been made on p-GaSe single crystal grown by the Bridgman-Stockbarger technique, A number of relatively sharp peaks are observed in the photocurrent, independent of polarity and amplitude of the applied voltage. No single mechanism seems to explain the observed photoresponse in p-GaSe single crystal samples.