Abstract
The modification in the bandgap of single GaN/InGaN quantum wells in the presence of a gold thin film with surface plasmon polariton energy off-resonant and resonant to the photoluminesnce emission energy is studied. The quantum well emission energy can be either blue shifted or red-shifted depending on the localized electric field induced by the metal thin film. A theory of electrostatic image charge induced alteration of the confinement potential is presented to explain the observed experimental shifts.
Original language | English |
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Article number | 121905 |
Journal | Applied Physics Letters |
Volume | 99 |
Issue number | 12 |
DOIs | |
State | Published - 19 Sep 2011 |