Frequency upconversion in Er{sup 3+} doped Y{sub 2}O{sub 3} nanophosphor:Yb{sup 3+} sensitization and tailoring effect of Li{sup +} ion
Abstract
Graphical abstract: - Highlights: • Dual mode luminescence behavior of Er{sup 3+} in oxide phosphor. • Sensitization through Yb{sup 3+} codoping, and tailoring effect of lithium ion. • Phosphors for lighting and display applications. - Abstract: Er{sup 3+} doped Y{sub 2}O{sub 3} nanophosphor has been synthesized using solution combustion technique and further characterized for structure and optical properties. Optical properties of Er{sup 3+} ion have been studied both through frequency upconversion (UC) as well as through fluorescence (excitation, emission, and CIE co-ordinate analysis) processes. Further to enhance the UC emission of Er{sup 3+} ions, a two step process has been used. In the first step, Yb{sup 3+} ion has been co-doped, which acts as the sensitizer for Er{sup 3+} through energy transfer process. In the second step, different concentrations of Li{sup +} ions have been co-doped in the Er{sup 3+}/Yb{sup 3+}:Y{sub 2}O{sub 3} system. Fourier transform infrared analysis, and X-ray diffraction (XRD) followed by Le-Bail refinement of the XRD data reveal that the co-doping of Li{sup +} ion decreases unit cell parameter, increases the particle size, and removes the quenching centers (like OH, NO{sub x}, etc.), which all together causes a significant enhancement in UC emission. Optimum UC luminescence ismore »
- Authors:
-
- Laser and Spectroscopy Laboratory, Department of Physics, Banaras Hindu University, Varanasi 221005 (India)
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005 (India)
- Publication Date:
- OSTI Identifier:
- 22285162
- Resource Type:
- Journal Article
- Journal Name:
- Materials Research Bulletin
- Additional Journal Information:
- Journal Volume: 48; Journal Issue: 10; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; DOPED MATERIALS; ENERGY TRANSFER; ERBIUM IONS; FLUORESCENCE; LITHIUM IONS; NITROGEN OXIDES; OPTICAL PROPERTIES; PARTICLE SIZE; SYNTHESIS; X-RAY DIFFRACTION; YTTERBIUM IONS; YTTRIUM OXIDES
Citation Formats
Mishra, K., Singh, S.K., E-mail: sunilcfsl@gmail.com, Singh, A. K., and Rai, S.B., E-mail: sbrai49@yahoo.co.in. Frequency upconversion in Er{sup 3+} doped Y{sub 2}O{sub 3} nanophosphor:Yb{sup 3+} sensitization and tailoring effect of Li{sup +} ion. United States: N. p., 2013.
Web. doi:10.1016/J.MATERRESBULL.2013.06.054.
Mishra, K., Singh, S.K., E-mail: sunilcfsl@gmail.com, Singh, A. K., & Rai, S.B., E-mail: sbrai49@yahoo.co.in. Frequency upconversion in Er{sup 3+} doped Y{sub 2}O{sub 3} nanophosphor:Yb{sup 3+} sensitization and tailoring effect of Li{sup +} ion. United States. https://doi.org/10.1016/J.MATERRESBULL.2013.06.054
Mishra, K., Singh, S.K., E-mail: sunilcfsl@gmail.com, Singh, A. K., and Rai, S.B., E-mail: sbrai49@yahoo.co.in. 2013.
"Frequency upconversion in Er{sup 3+} doped Y{sub 2}O{sub 3} nanophosphor:Yb{sup 3+} sensitization and tailoring effect of Li{sup +} ion". United States. https://doi.org/10.1016/J.MATERRESBULL.2013.06.054.
@article{osti_22285162,
title = {Frequency upconversion in Er{sup 3+} doped Y{sub 2}O{sub 3} nanophosphor:Yb{sup 3+} sensitization and tailoring effect of Li{sup +} ion},
author = {Mishra, K. and Singh, S.K., E-mail: sunilcfsl@gmail.com and Singh, A. K. and Rai, S.B., E-mail: sbrai49@yahoo.co.in},
abstractNote = {Graphical abstract: - Highlights: • Dual mode luminescence behavior of Er{sup 3+} in oxide phosphor. • Sensitization through Yb{sup 3+} codoping, and tailoring effect of lithium ion. • Phosphors for lighting and display applications. - Abstract: Er{sup 3+} doped Y{sub 2}O{sub 3} nanophosphor has been synthesized using solution combustion technique and further characterized for structure and optical properties. Optical properties of Er{sup 3+} ion have been studied both through frequency upconversion (UC) as well as through fluorescence (excitation, emission, and CIE co-ordinate analysis) processes. Further to enhance the UC emission of Er{sup 3+} ions, a two step process has been used. In the first step, Yb{sup 3+} ion has been co-doped, which acts as the sensitizer for Er{sup 3+} through energy transfer process. In the second step, different concentrations of Li{sup +} ions have been co-doped in the Er{sup 3+}/Yb{sup 3+}:Y{sub 2}O{sub 3} system. Fourier transform infrared analysis, and X-ray diffraction (XRD) followed by Le-Bail refinement of the XRD data reveal that the co-doping of Li{sup +} ion decreases unit cell parameter, increases the particle size, and removes the quenching centers (like OH, NO{sub x}, etc.), which all together causes a significant enhancement in UC emission. Optimum UC luminescence is attained for 5 mol% Li{sup +} doping concentration beyond which a quenching in UC emission is observed. This combined approach, i.e. Yb{sup 3+} sensitization and Li{sup +} ion tailoring simultaneously enhances the UC emission intensity of Er{sup 3+} several times in yttria matrix effectively. The strategy can be generalized in other hosts also which could help in the development of efficient photonic materials for lighting and display devices.},
doi = {10.1016/J.MATERRESBULL.2013.06.054},
url = {https://www.osti.gov/biblio/22285162},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 10,
volume = 48,
place = {United States},
year = {Tue Oct 15 00:00:00 EDT 2013},
month = {Tue Oct 15 00:00:00 EDT 2013}
}