Title :
Increase in luminous efficiency with thinned LED´s
Author_Institution :
Centre Electronique Horloger S.A., Neuchâtel, Switzerland
Abstract :
A method of thinning the substrate under the junctions has been developed to improve the extraction of light through the front surface of LED´s. This new technique has been applied to diodes made by Ga(AsP):N / GaP and Ga(AsP) / GaAs technologies. An increase in efficiency of a factor 3 is demonstrated. A simple theoretical model is presented.
Keywords :
Absorption; Displays; Energy consumption; Gallium arsenide; Light emitting diodes; Optical reflection; Power generation; Solids; Substrates; Watches;
Conference_Titel :
Electron Devices Meeting, 1976 International
DOI :
10.1109/IEDM.1976.189126
