Studies on the Nature of CdS Single Crystal Sensitization by Etching

Abstract

The sensitizing of CdS single crystals by etching in a KOH (NaOH) solution is investigated by several photoelectric and luminescence methods. It is shown that the sensitizing is mainly due to the creation of slow sensitizing r-centres of recombination with parameters identical to those of recombination centres in naturally photoconductive crystals. Two mechanisms are proposed to explain the sensitizing and these take into account the dif-fusion of vacancy complexes and hydroxyle groups. [Russian Text Ignored].