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Gold Nanoparticle-enhanced Upconversion in Erbium Ions

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Upconversion of sub-bandgap photons has been suggested to increase the efficiencies of silicon solar cells. Here we use model calculations to study the potential of optical near-field effects in gold nanoparticles to enhance the upconversion intensities from erbium ions. The results indicate that upconversion can be enhanced in a geometry relevant for applications.

© 2012 Optical Society of America

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