Surface plasmon dispersion engineering via double-metallic Au/Ag layers for III-nitride based light-emitting diodes

Hongping Zhao*, Jing Zhang, Guangyu Liu, Nelson Tansu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

Double-metallic Au/Ag layers deposited on top of InGaN/GaN quantum wells (QWs) are used to tune the Purcell peak enhancement of the radiative recombination rate for nitride light-emitting diodes. By modifying the Au/Ag thicknesses, the Purcell factor can be widely tuned between the surface plasmon frequencies of Au/GaN and Ag/GaN. Photoluminescence studies demonstrated the concept of the Purcell factor tuning by using the double-metallic Au/Ag layers.

Original languageEnglish (US)
Article number151115
JournalApplied Physics Letters
Volume98
Issue number15
DOIs
StatePublished - Apr 11 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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