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NIR to visible frequency upconversion in Er3+ and Yb3+ co-doped BaZrO3 phosphor
- Source :
-
Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy . May2013, Vol. 108, p141-145. 5p. - Publication Year :
- 2013
-
Abstract
- Abstract: Phosphor powders of Yb3+ co-doped BaZrO3:Er3+ have been prepared by the urea combustion route. The formation of single-phase BaZrO3:Er3+ and BaZrO3:Er3+,Yb3+ was confirmed by X-ray powder diffraction (XRD). Green and red luminescence along with a weaker blue emission is observed upon excitation at ∼978nm with a diode laser. These emissions are caused by frequency upconversion in the Er3+-doped BaZrO3 (BZO) phosphor. Both the green and red upconversion emissions of the Er3+ are enhanced by about ∼3 and ∼43 times respectively when triply ionized ytterbium is incorporated as a co-dopant. The frequency upconversion processes responsible for the blue, green and red emissions are discussed on the basis of the experimental data. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13861425
- Volume :
- 108
- Database :
- Academic Search Index
- Journal :
- Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 86924608
- Full Text :
- https://doi.org/10.1016/j.saa.2013.01.073