Polarization characteristic of CDTE diode radiation detector

The spectrum measurement of these detectors was confirmed that the effect of polarization was reduced by increasing reverse bias voltage and decreasing operating temperature. The effect of polarization in these detectors were similarly occurred. From this fact, if was confirmed that polarization is not only the phenomenon of schottky barrier and also is the phenomenon of bulk crystal. The cause of polarization was the decrease of depletion layer width and the increase of current. The cause of decrease of depletion layer width and the cause of increase of current was the phenomenon of deep acceptor. From this fact, it was confirmed that the cause of polarization was the phenomenon of deep acceptor. (author)