NIR to visible frequency upconversion in Er3+ and Yb3+ co-doped BaZrO3 phosphor
Autor(en): | Singh, Vijay Rai, Vineet Kumar Al-Shamery, Katharina Haase, Markus Kim, Sang Hwan |
Stichwörter: | 1ST-PRINCIPLES; Absorption; BaZrO3; Combustion; DIFFUSION; Er3+; GROWTH; LUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; PEROVSKITES; PROTON CONDUCTIVITY; Spectroscopy; SRTIO3; STABILITY; TRANSPORT; Upconversion; XRD; Yb3+ | Erscheinungsdatum: | 2013 | Herausgeber: | PERGAMON-ELSEVIER SCIENCE LTD | Journal: | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | Volumen: | 108 | Startseite: | 141 | Seitenende: | 145 | Zusammenfassung: | 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 similar to 978 nm 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 similar to 3 and similar to 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. (c) 2013 Elsevier B.V. All rights reserved. |
ISSN: | 13861425 | DOI: | 10.1016/j.saa.2013.01.073 |
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geprüft am 16.05.2024