THE CATHODOLUMINESCENCE OF CLEARTRAN:A NOVEL FORM OF POLYCRYSTALLINE ZnS DISSERTATION

摘要

Cathodoluminescence studies were carried out between 10 and 300 K on Cleartran a form of chemical-vapor-deposited (cvd) ZnS subjected to high temperature and pressure post-deposition processing. The results of these studies were compared to and contrasted with the cathodoluminescence of cvd ZnS samples grown by Raytheon and CVD Inc., with high quality crystal platelets of ZnS, and with bulk-grown cubic phase single crystal ZnS grown by Eagle-Picher Co.nBy comparison with previous reports in the literature, the Cleartran samples were shown to contain a significant concentration of copper, aluminum, chlorine, manganese, and oxygen impurities;and, with a smaller degree of confidence, iodine impurity and zinc vacancies.