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Gold nanoparticle-enhanced upconversion in erbium ions

: Plessen, G.V.; Fischer, S.; Hallermann, F.; Kumar, D.; Sprafke, A.; Goldschmidt, J.C.


Optical Society of America -OSA-, Washington/D.C.:
Optical Nanostructures and Advanced Materials for Photovoltaics : Eindhoven Netherlands November 11-14, 2012
Washington, DC: OSA, 2012
ISBN: 978-1-55752-952-7
Paper PW2B.2
Conference "Optical Nanostructures and Advanced Materials for Photovoltaics - Spectral Conversion" <2012, Eindhoven>
Fraunhofer ISE ()

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.