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The Influence of Structure on the Electroluminescence of Zinc Sulphide
Author(s) -
Alfrey G. F.,
Meadowcroft D. B.
Publication year - 1968
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19680270211
Subject(s) - electroluminescence , phosphor , impurity , materials science , excitation , activator (genetics) , scattering , zinc , crystal structure , crystallography , optoelectronics , optics , chemistry , composite material , metallurgy , physics , layer (electronics) , biochemistry , organic chemistry , quantum mechanics , gene
Electroluminescence has been measured from small regions within vapour‐grown ZnS crystals, and can be correlated with the crystal structure of the regions, since impurity content and other factors should be constant in these conditions. The emission is found to be lower for disordered structures, in contrast to previous work on phosphors. It is suggested that, at the low activator concentrations prevailing, decoration of dislocations does not occur, so that processes depending on conducting inclusions are inoperative. Scattering at the defects will, on the other hand, reduce the efficiency of impact excitation.