Electrical conduction in p-GaSe

Abstract
Space-charge-limited current behaviour is reported for the temperature range 200K to 350K in undoped p-GaSe, parallel to the c axis, for samples showing the most frequently observed activation energy. The conduction is found to be extrinsic, (NA-ND)=3*1016 m-3 and the dominant hole level is a single discrete trap with Et=0.195 eV and Nt=4*1022 m-3.