Accession Number : AD0284018

Title :   THE DISPLACEMENT OF THE SELENIUM ATOM IN. SINGLE-CRYSTAL ZINC SELENIDE BY ELECTRON BOMBARDMENT

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : DETWEILER,ROBERT MILAN

Report Date : MAY 1962

Pagination or Media Count : 1

Abstract : The fluorescence structure and the displacement energy of lattice atoms in single-crystal synthetic zinc selenide were investigated with a low-energy electron beam probe. Fluorescence peak intensities at 77 K were observed at 0.45, 0.46, 0.49, 0.525, 0.55, 0.64, 0.85, 1.0, 1.25, 1.65, 2.0, and 2.2 mu. The temperature dependence of 5 of the more prominent peaks was examined. The structured edge emission containing as many as 5 lines has also been observed. The threshold for the controlled growth of a broad 0.55 mu peak band was observed at 240 ! 10 kev, which corresponds to a maximum energy transfer to the selenium atom of 8.2 ev. Although positive evidence is lacking, the causing defect for the 0.55 mu band appears to be the selenium vacancy. (Author)

Descriptors :   *DISPLACEMENT REACTIONS, *ELECTRON IRRADIATION, *ZINC COMPOUNDS, CRYSTAL LATTICES, FLUORESCENCE, RADIATION EFFECTS, SINGLE CRYSTALS

Distribution Statement : APPROVED FOR PUBLIC RELEASE