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Surface plasmon enhanced bright light emission from InGaN/GaN

✍ Scribed by Okamoto, Koichi ;Niki, Isamu ;Shvartser, Alexander ;Maltezos, George ;Narukawa, Yukio ;Mukai, Takashi ;Kawakami, Yoichi ;Scherer, Axel

Book ID
105364254
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
162 KB
Volume
204
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

Surface plasmon (SP) coupling technique was used to enhance blue and green light emissions from InGaN/GaN quantum wells (QWs). Large enhancement of photoluminescence (PL) of both blue and green emissions was observed with silver coated samples, whereas the enhancements were not so effective for the gold coated samples. We could obtain well enhanced green emission by tuning the matching condition of QW‐SP coupling with nano‐grating structures at gold layers. This method should be useful to design even more efficient structures and to fabricate super bright light emitting devices. (Β© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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## Abstract A novel approach to enhancing the emission efficiency of InGaN/GaN multiple quantum wells via coupling to surface plasmons (SPs) in a periodic two‐dimensional silver array is demonstrated. A higher internal quantum efficiency and a higher light extraction efficiency are simultaneously a