Accession Number : AD0284019

Title :   A STUDY OF SOME BASIC LUMINESCENT PROPERTIES OF FIVE RELATED TETRAARYL SILANES UNDER ULTRA-VIOLET EXCITATION

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

Personal Author(s) : POLK,ADRIAN VANCE

Report Date : MAY 1962

Pagination or Media Count : 1

Abstract : Some luminescent properties of the tetraaryl silane family composed of tetraphenyl silane, triphenyl-p-biphenylyl silane (silane I), diphenyl-di-p-biphenylyl silane (silane II), phenyl-tri-p-biphenylyl silane (silane III), and tetra-p-biphenylyl silane (silaneI (V) were investigated under conditions which minimized perturbations of the emission process. The fluorescence spectra of these 5 compounds at 298 and 77 K under UV excitation are reported; spectral structure was enhanced in the spectra of samples at 77 K. The similarity of the emission characteristics of the biphenylyl-substituted silanes to the corresponding characteristics of biphenyl suggests that the biphenylyl group is most responsible for luminescence in these four silanes. (Author)

Descriptors :   *LUMINESCENCE, *PHOSPHORESCENT MATERIALS, *SILANES, EXCITATION, FLUORESCENCE, HALF LIFE, PHENYL RADICALS, PHOSPHORESCENCE, PHOTOELECTRIC EFFECT, SCINTILLATION COUNTERS, SPECTROGRAPHIC ANALYSIS, ULTRAVIOLET RADIATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE