Accession Number : AD0286829

Title :   ELECTROLUMINESCENT-PHOTOCONDUCTOR ELEMENTS

Corporate Author : WESTINGHOUSE ELECTRIC CORP PITTSBURGH PA

Personal Author(s) : WOLFE,P.N. ; JOHNSON,J.E. ; HARPER,W.J.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : A materials improvement program was undertaken. Electroluminescence studies were concentrated on dc-pulse-excited thin film electroluminors, whose relevant properties such as response speed, quantum efficiency, spectral output, temperature dependence, and maintenance are summarized. Research on photoconductors was concerned with preparation techniques for high-purity single crystals and evaporated films of cadmium sulfide, and with performance improvements attainable in single crystals by optimizing trap distributions. It was concluded that the desired logic element speed is not likely to be attained with simple, two-terminal electroluminors and photoconductors, but rather will require the use of devices incorporating additional gain, possibly threeterminal electroluminors. (Author)

Descriptors :   *CADMIUM COMPOUNDS, *LUMINESCENCE, *PHOTOCONDUCTIVITY, *SULFIDES, ABSORPTION, EVAPORATION, GROWTH(PHYSIOLOGY), INFRARED PHOTOCONDUCTORS, PHOTOELASTICITY, PHOTOELECTRIC CELLS (SEMICONDUCTOR), PHOTOELECTRIC EFFECT, PHOTOTUBES, PULSE MODULATION, SINGLE CRYSTALS, THIN FILMS (STORAGE DEVICES)

Distribution Statement : APPROVED FOR PUBLIC RELEASE