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Title

Si nanoparticle- Er3+ coupling through contact in as-deposited nanostructured films

AuthorsNúñez Sánchez, Sara ; Roque, Pablo M.; Serna, Rosalía ; Petford-Long, A. K.
Issue Date2011
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 98: 151109 (2011)
AbstractThe efficient excitation of Er3+ ions through contact with Si nanoparticles (NPs) is demonstrated. A nanostructured doping process has been developed that leads to contact between Si NPs formed in situ and optically-active Er3+ ions embedded in Al2 O3. This is achieved by independent and consecutive deposition of the dopants and matrix. The Si NP- Er3+ contact regime enhances the probability of efficient interaction due to the local spatial overlap of the electronic states of the Er3+ and of the Si NP exciton, enabling energy transfer by interband exciton recombination. This leads to up to 53% of the Er3+ ions being excited in as-deposited films. © 2011 American Institute of Physics.
URIhttp://hdl.handle.net/10261/58984
DOI10.1063/1.3579523
Identifiersdoi: 10.1063/1.3579523
issn: 0003-6951
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