DocumentCode
921332
Title
Radiance of small-area high-current-density electroluminescent diodes
Author
Burrus, C.A.
Volume
60
Issue
2
fYear
1972
Firstpage
231
Lastpage
232
Abstract
Optical power radiated into a solid angle per unit area of emitting surface (radiance) is a basic measure of the usefulness of an electroluminescent device to be used as a communications-system source. Dc radiance values from about 20 to more than 100 W/sr/cm2have been obtained for various small-area GaAs and AlGaAs diodes operated at current densities that yielded an operating half-life of at least several thousand hours. These radiance values are two to three orders of magnitude larger than those obtained with relatively large-area commercial light-emitting diode (LED) indicator lamps.
Keywords
Area measurement; Electroluminescence; Electroluminescent devices; Gallium arsenide; LED lamps; Light emitting diodes; Optical devices; Power measurement; Solids; Stimulated emission;
fLanguage
English
Journal_Title
Proceedings of the IEEE
Publisher
ieee
ISSN
0018-9219
Type
jour
DOI
10.1109/PROC.1972.8600
Filename
1450530
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