LIGHT EMITTING DIODE DEVICE

Described are light emitting diode (LED) devices including a combination of electroluminescent and photo-luminescent active regions in the same wafer to provide LEDs with emission spectra that are adjustable after epitaxial growth. The LED device includes a multilayer anode contact comprising a refl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ARMITAGE, Robert, WILDESON, Isaac
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Described are light emitting diode (LED) devices including a combination of electroluminescent and photo-luminescent active regions in the same wafer to provide LEDs with emission spectra that are adjustable after epitaxial growth. The LED device includes a multilayer anode contact comprising a reflecting metal and at least one transparent conducting oxide layer in between the metal and the p-type layer surface. The thickness of the transparent conducting oxide layer may vary for LEDs fabricated with different emission spectra.