Handheld deep ultraviolet emission device based on aluminum nitride quantum wells and graphene nanoneedle field emitters

We report the successful fabrication of a compact deep ultraviolet emission device via a marriage of AlGaN quantum wells and graphene nanoneedle field electron emitters. The device demonstrated a 20-mW deep ultraviolet output power and an approximately 4% power efficiency. The performance of this de...

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Bibliographic Details
Published in:Optics express 2012-10, Vol.20 (22), p.24320-24329
Main Authors: Matsumoto, Takahiro, Iwayama, Sho, Saito, Takao, Kawakami, Yasuyuki, Kubo, Fumio, Amano, Hiroshi
Format: Article
Language:English
Online Access:Get full text
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Summary:We report the successful fabrication of a compact deep ultraviolet emission device via a marriage of AlGaN quantum wells and graphene nanoneedle field electron emitters. The device demonstrated a 20-mW deep ultraviolet output power and an approximately 4% power efficiency. The performance of this device may lead toward the realization of an environmentally friendly, convenient and practical deep ultraviolet light source.
ISSN:1094-4087
DOI:10.1364/OE.20.024320