PLASMONIC LIGHT EMITTING DIODE

摘要

A light emitting diode includes a diode structure containing a quantum well, an enhancement layer, and a barrier layer between the enhancement layer and the quantum well. The enhancement layer supports plasmon oscillations at a frequency that couples to photons produced by combination of electrons and holes in the quantum well. The barrier layer serves to block diffusion between the enhancement layer and the diode structure.

主权项

1. A light emitting diode (LED) comprising:
a diode structure containing a quantum well; an enhancement layer that supports plasmon oscillations at a first frequency, wherein the plasmon oscillations having the first frequency couple to photons produced by a combination of electrons and holes in the quantum well; and a barrier layer and a patterned contact between the enhancement layer and the quantum well, wherein the barrier layer comprises a layer of non-diffusive metal, wherein the barrier layer and the patterned contact block diffusion between the enhancement layer and the diode structure and wherein at least the barrier layer allows the plasmon oscillations of the enhancement layer to interact with the quantum well.