Concepedia

Publication | Open Access

Surface plasmon enhanced super bright InGaN light emitter

DOIFull Paper Access

13

Citations

0

References

2005

Year

Koichi Okamoto, Isamu Niki, Alexander Shvartser, Yukio Narukawa, Takashi Mukai, Axel Scherer
Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics

Abstract

We use surface plasmons to increase the light emission efficiency from InGaN/GaN quantum wells by covering these with thin metallic films. Large luminescence enhancements were measured when silver or aluminum layers are deposited 10 nm above an InGaN light emitting layer, whereas no such enhancements are obtained from gold coated samples. The internal quantum efficiencies of quantum wells before and after metallization were determined from the temperature dependence of the photoluminescence intensity. Our results indicate that the use of surface plasmons will lead to a new class of very bright light emitting diodes, and highly efficient solid-state light sources. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)