LED mit fluoreszierendem Substrat

LED mit fluoreszierendem Substrat

A substrate-fluorescent LED having a fluorescent-impurity doped substrate and an epitaxial emission structure including an active layer and being made on the substrate. The epitaxial emission structure emits blue or green light corresponding to the band gap of the active layer. The substrate absorbs...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MOTOKI, KENSAKU, MATSUBARA, HIDEKI, TAKEBE, TOSHIHIKO
Format: Patent
Sprache:ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:A substrate-fluorescent LED having a fluorescent-impurity doped substrate and an epitaxial emission structure including an active layer and being made on the substrate. The epitaxial emission structure emits blue or green light corresponding to the band gap of the active layer. The substrate absorbs a part of the blue or green light and makes fluorescence of a longer wavelength. Neutral color light or white light is emitted from the LED. The fluorescent substrate is n-AlGaAs(Si dope), GaP(Zn+O dope), ZnSe (Cu+I, Ag+I, Al+I dope), GaN (O.C.Va(N) dope) or so.