Spectral characterization and white light generation by yttrium silicate nanopowders undoped and doped with Ytterbium(III) at different concentrations when excited by a laser diode at 975 nm

Hatun Cinkaya*, Gonul Eryurek, Gokhan Bilir, John Collins, Baldassare Di Bartolo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We have studied nanophosphors of yttrium silicate (YSO) undoped and doped with different concentration of ytterbium (Yb3+) synthesized by using the sol-gel method. Structural and luminescence properties of the nanophosphors were studied experimentally by using different analytical techniques. For the structural analysis, we performed X-ray diffraction (XRD), Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray Spectrometry (EDS) measurements. Upconversion (UC) and the white light (WL) emission properties were investigated by using the near infrared cw laser excitation of 975 nm. The spectral properties have been found to depend on several physical parameters.

Original languageEnglish
Pages (from-to)167-172
Number of pages6
JournalOptical Materials
Volume63
DOIs
Publication statusPublished - 1 Jan 2017

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

Keywords

  • Concentration dependence
  • Cooperative emission
  • Sol-gel
  • White light
  • Ytterbium

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