Zobrazeno 1 - 9
of 9
pro vyhledávání: '"P. V. Jyothy"'
Publikováno v:
Pramana. 75:999-1004
Cadmium selenide nanocrystals along with dysprosium ions are doped in silica matrices through sol-gel route. The optical bandgap and size of the CdSe nanocrystals are calculated from the absorption spectrum. The size of the CdSe nanocrystallites is a
Publikováno v:
Journal of Alloys and Compounds. 493:223-226
Silica glasses doped with varying concentrations of CdSe nanocrystallites are prepared by the sol–gel route. The dielectric response and the AC electrical conductivity of the samples are investigated for the frequency range 1 kHz–3 MHz at room te
Publikováno v:
Physica B: Condensed Matter. 405:1513-1517
The effect of silver nanoparticle co-doping on the dielectric properties of holmium doped silica glasses was studied. Silver nanoparticles of size between 20 and 22 nm were produced by the sol–gel technique. One of the samples showed an icosahedral
Publikováno v:
Journal of Applied Polymer Science. 113:887-895
Neodymium-doped polyvinyl alcohol films were prepared and the optical properties of the films were investigated. By applying Judd–Ofelt theory, the Ω parameters were obtained from the absorption spectrum. Various radiative parameters like transiti
Publikováno v:
Journal of Physics and Chemistry of Solids. 70:927-930
Cadmium sulfide semiconductor nanocrystals along with dysprosium ions were incorporated in silica xerogels through sol–gel route. The fluorescence properties were analyzed for samples annealed at different temperatures. The incorporation of the CdS
Publikováno v:
Materials Chemistry and Physics. 112:1061-1064
Oxygenated cadmium telluride co-doped with rare earth element samarium is prepared by sol–gel method. Sample is air annealed at 200, 500 and 800 °C. The absorption and fluorescence spectra are analysed using Judd–Ofelt analysis to obtain J–O p
Publikováno v:
Journal of Modern Optics. 52:2687-2694
The mechanism governing the upconversion fluorescence from the 4G5/2 level of Sm3+ ion has been investigated in zinc phosphate glass matrices under infrared (1.06 µm) laser excitation. This visible emission is centred at 590 nm and corresponds to th
Publikováno v:
Journal of fluorescence. 19(1)
Cadmium sulfide semiconductor nanoparticles along with terbium ions were incorporated in silica xerogels through sol–gel route. The optical absorption and emission spectra confirmed the formation of CdS nanoparticles along with terbium ions in the
Publikováno v:
Journal of Modern Optics; 12/15/2005, Vol. 52 Issue 18, p2687-2694, 8p, 1 Diagram, 4 Graphs