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Pressure Effects on the Optical Properties of LuVO4:Eu3+ Nanoparticles

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Abstract:

The effect of hydrostatic pressure (varying up to 110 kbar) at the room temperature on three lines at 594nm, 615nm and 619nm positions in emission spectra and fluorescence lifetime t of the Eu3+ for 0-2 line (5D07F2 transition) in LuVO4: Eu3+ nanoparticles was studied. The results showed that the increase of the pressure induced lines red shift towards longer wavelengths for all considered lines with different rate. Also, the fluorescence lifetime τ for 5D07F2 transition nonlinearly decreased with pressure in the considered pressure range. Line positions and fluorescence lifetime τ, were explained by a model which took into account the effect of high pressure on: refractive index of crystal; compression, polarizability of the crystal and individual ions. Satisfactory agreement between measured and theoretical predicted values with error less than 2% was obtained.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 75)
Pages:
1-10
DOI:
10.18052/www.scipress.com/ILCPA.75.1
Citation:
B. Jovanić et al., "Pressure Effects on the Optical Properties of LuVO4:Eu3+ Nanoparticles", International Letters of Chemistry, Physics and Astronomy, Vol. 75, pp. 1-10, 2017
Online since:
Aug 2017
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