n-AlGaN THIN FILM AND ULTRAVIOLET LIGHT EMITTING DEVICE INCLUDING THE SAME

n-AlGaN THIN FILM AND ULTRAVIOLET LIGHT EMITTING DEVICE INCLUDING THE SAME

An n-type aluminum gallium nitride (AlGaN) thin film and an ultraviolet light emitting device including the same. The ultraviolet light emitting device includes: an aluminum nitride (AlN) buffer layer on a substrate; and an n-type AlGaN layer, an active layer, a p-type AlGaN layer that are sequentia...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LEE JIN-SUB, SONE CHEOL-SOO, KIM JUNG-SUB
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:An n-type aluminum gallium nitride (AlGaN) thin film and an ultraviolet light emitting device including the same. The ultraviolet light emitting device includes: an aluminum nitride (AlN) buffer layer on a substrate; and an n-type AlGaN layer, an active layer, a p-type AlGaN layer that are sequentially stacked on the AlN buffer layer. A silicon doping density of the n-type AlGaN layer increases with respect to an increasing vertical position of the n-AlGaN layer with reference to the AlN buffer layer.