Using NMR Relaxometry to Probe Yb 3+ -Er 3+ Interactions in Highly Doped Nanocrystalline NaYF 4 Nanostructures

M. N. Martin, T. Newman, M. Zhang, L. D. Sun, C. H. Yan, Gang-yu Liu, M. P. Augustine

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Solid-state nuclear magnetic resonance (NMR) spectroscopy is used to study heavily Yb 3+ and Er 3+ doped, fluorescent NaY 1-x-y Yb x Er y F 4 nanoparticles. An understanding of the 19 F wide line NMR response suggests that the 0 ppm portion of the 19 F NMR spectrum can be used as a probe of trivalent lanthanide content via spin-lattice relaxation time changes. A Yb 3+ and Er 3+ magnetic interaction is manifest as a cooperative contribution to the 19 F spin-lattice relaxation rate in heavily co-doped nanoparticle samples. The results from this study will aid in the understanding of the mechanism of enhanced optical up-conversion among these well-known nanostructures.

Original languageEnglish (US)
Pages (from-to)10-16
Number of pages7
JournalJournal of Physical Chemistry C
Volume123
Issue number1
DOIs
StatePublished - Oct 1 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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