HIGH EFFICIENCY, WHITE, SINGLE OR MULTI-COLOR LIGHT EMITTING DIODES (LEDS) BY INDEX MATCHING STRUCTURES

Light emitting diode (LED) structures with an overstructure material having a refractive-index matched to the active layer and ways to produce such materials are disclosed. Various implementations of such structures to provide very high extraction efficiency and color control such as white light emi...

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Bibliographic Details
Main Authors WEISBUCH, CLAUDE, C., A, DENBAARS, STEVEN, P, SPECK, JAMES, S
Format Patent
LanguageEnglish
French
Published 03.07.2008
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:Light emitting diode (LED) structures with an overstructure material having a refractive-index matched to the active layer and ways to produce such materials are disclosed. Various implementations of such structures to provide very high extraction efficiency and color control such as white light emission are also disclosed. L'invention présente des structures de diode électroluminescente (DEL) dotées d'un matériau disposé sur la structure ayant un indice de réfraction correspondant à la couche active et des procédés de production de tels matériaux. L'invention présente également diverses implémentations de telles structures permettant d'obtenir un rendement d'extraction très élevé et un contrôle de la couleur tel qu'une émission de lumière blanche.
Bibliography:Application Number: WO2007US24013