Control of green and red upconversion in NaYF4:Yb 3+,Er3+ nanoparticles by excitation modulation

Christian F. Gainer, Gihan S. Joshua, Channa R. De Silva, Marek Romanowski

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


Control of the two strongest upconversion emission lines in NaYF 4:Yb3+, Er3+ nanoparticles is demonstrated by varying the excitation repetition rate. This technique may enable new multiplexed sensing modalities based on multicolor luminescent nanoparticles, currently contemplated for biomedical imaging and diagnostics.

Original languageEnglish (US)
Pages (from-to)18530-18533
Number of pages4
JournalJournal of Materials Chemistry
Issue number46
StatePublished - Dec 14 2011

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry


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