Effect of lithium doping on the photoluminescence of Sm:ZnO powders View Full Text


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Article Info

DATE

2013-05-08

AUTHORS

Y. J. Zhu, X. R. Zhao, L. B. Duan, X. J. Bai, H. N. Sun, W. F. Duan

ABSTRACT

ZnO co-doped with 2 at.% Sm and different Li concentration (0–7 at.%) powders were fabricated by the sol–gel method with 700 °C annealing. The effect of Li doping concentration on the structure and photoluminescence (PL) of ZnO powders doped with 2 at.% Sm was investigated. Based on the balance of structure and valence, with the help of Li doping (1, 2 at.%) into ZnO powders doped with 2 at.% Sm, Sm3+ ions enter ZnO crystal lattice and induce the characteristic Sm3+ emission peaks by the ultra-violet (UV) excitation (278 nm). Especially, when the Li doping concentration is 2 at.%, the sample has the most efficient Sm characteristic emission line. However, Li will hinder the substitution of zinc location by Sm3+ when the Li doping concentration is above 3 at.%, which results in the disappearance of the characteristic samarium emission lines. More... »

PAGES

155-160

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10971-013-3061-2

DOI

http://dx.doi.org/10.1007/s10971-013-3061-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1001628852


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