Structural and photoluminescence characterization of nanocrystalline YAG: Er prepared with the addition of PVA and UREA

R. A. Rodriguez, E. H. Tobar, E. De La Rosa, L. A. Diaz-Torres, P. Salas, A. Torres, M. V. Felix, J. Castañeda-Contreras, M. J. Yacaman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The Photoluminescence (PL), FFTIR, Raman characterization, XRD and TEM of Er doped nanocrystals (Y3Al5O12:Er) prepared by glycolate method modified with PVA and UREA is reported. Irregular morphology was observed but for some concentration of PVA and UREA nanorods was observed, being PVA dominant in final morphology. XRD patterns show the presence of hexagonal phase of YAG (YAH) when the UREA was used but pure YAG crystalline structure was obtained with only PVA. Raman spectroscopy confirms the crystalline phase and in combination with infrared spectroscopy the presence of oxygen deficiency was observed. Strong green emission was observed as a result of the upconversion mechanism due to the two photon process. Luminescence results show that both PVA and UREA do not modify the emission properties but control the morphology.

Original languageEnglish (US)
Title of host publicationNanophotonic Materials IV
DOIs
StatePublished - 2007
Externally publishedYes
EventNanophotonic Materials IV - San Diego, CA, United States
Duration: Aug 26 2006Aug 27 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6639
ISSN (Print)0277-786X

Conference

ConferenceNanophotonic Materials IV
Country/TerritoryUnited States
CitySan Diego, CA
Period8/26/068/27/07

Keywords

  • Er
  • Nanocrystals and phosphor
  • Photoluminescence
  • PVA
  • UREA
  • YAG

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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