Plasmon enhanced light emission from InGaN quantum wells via coupling to chemically synthesized silver nanoparticles

Henson, John; Heckel, John C.; Dimakis, Emmanouil; Abell, Josh; Bhattacharyya, Anirban; Chumanov, George; Moustakas, Theodore D.; Paiella, Roberto
October 2009
Applied Physics Letters;10/12/2009, Vol. 95 Issue 15, p151109
Academic Journal
Chemically synthesized single-crystal silver nanoparticles are used to demonstrate plasmon enhanced visible light emission from nitride semiconductor quantum wells. For ease of assembly and testing, the nanoparticles are embedded onto the surface of flexible resin films, which are then simply adhered on top of the light emitting samples. Large enhancements in photoluminescence efficiency are correspondingly measured at emission wavelengths near the nanoparticle plasmonic resonance. At the same time, when samples emitting at a sufficiently far detuned wavelength are used, the measured efficiency is not affected by the nanoparticles, which confirms the plasmonic origin of the observed enhancement.


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