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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Photoluminescence study of Sm3+-Yb3+ co-doped tellurite glass embedding silver nanoparticles

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Reza Dousti, M. [1, 2, 3] ; Amjad, R. J. [3, 4] ; Hosseinian, R. S. [3] ; Salehi, M. [3] ; Sahar, M. R. [3]
Total Authors: 5
[1] Islamic Azad Univ, Tehran North Branch, Dept Phys, Tehran - Iran
[2] Univ Sao Paulo, Inst Fis Sao Carlos, Lab Espectroscopia Mat Func LEMAF, BR-13566590 Sao Carlos, SP - Brazil
[3] Univ Teknol Malaysia, Fac Sci, Dept Phys, Skudai 81310 - Malaysia
[4] Inst Informat Technol, COMSATS, Dept Phys, Lahore 54000 - Pakistan
Total Affiliations: 4
Document type: Journal article
Source: Journal of Luminescence; v. 159, p. 100-104, MAR 2015.
Web of Science Citations: 15

We report on the upconversion emission of Sm3+ ions doped tellurite glass in the presence of Yb3+ ions and silver nanoparticles. The enhancement of infrared-to-visible upconversion emissions is achieved under 980 nm excitation wavelength and attributed to the high absorption cross section of Yb3+ ions and an efficient energy transfer to Sm3+ ions. Further enhancements are attributed to the plasmonic effect via metallic nanoparticles resulting in the large localized field around rare earth ions. However, under excitation at 406 nm, the addition of Yb3+ content and heat-treated silver nanoparticles quench the luminescence of Sm3+ ions likely due to quantum cutting and plasmonic diluent effects, respectively. (C) 2014 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 13/24064-8 - Structural and photophysical studies of tungsten phosphate glasses doped with rare earth ions and metallic nanoparticles
Grantee:Mohammad Reza Dousti
Support type: Scholarships in Brazil - Post-Doctorate