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Article
Size control of Si nanocrystals by two-step rapid thermal annealing of sputtered Si-rich oxide/SiO2 superlattice
Controllable size of silicon (Si) nanocrystals can be achieved by a two-step rapid thermal annealing technique consisting of rapid annealing at 1000°C in nitrogen ambient and rapid oxidation at 600–800°C of a ...
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Article
Enhanced photosensitivity in sol–gel derived 20GeO2:80SiO2 thin films
We investigate the photosensitivity of binary 20GeO2:80SiO2 (germanosilicate) inorganic films. The samples have been fabricated by the sol–gel spin-coating method and the densification has been performed by rapid...
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Article
Conductivity drop and crystallites redistribution in gold film
Electrical conductivity of Au film deposited on Si(100), Si(111) and BK7 glass substrates, ranging from 20 nm to 1000 nm, was measured. Conductivity drop and a decrease of averaged crystallite size are observe...
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Article
Photoluminescence of sol–gel-derived Y2O3:Eu3+ thin-film phosphors with Mg2+ and Al3+ co-do**
Red-light-emitting Y2O3:Eu3+ thin-film phosphors were synthesized using a sol–gel process. The effect of Mg2+ and Al3+ co-dopants on the Y2O3:Eu3+ thin-film phosphor photoluminescence (PL) property was investigat...
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Article
Photoluminescence characteristics of neodymium oxide nanocrystal/titania/ormosil composite sol-gel thin films
Neodymium (III) oxide nanocrystal/titania/organically-modified silane (ormosil) composite thin films have been prepared using a chemical approach consisting of a combination of inverse microemulsion and sol-ge...
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Article
Luminescence properties from erbium oxide nanocrystals dispersed in titania/organically modified silane composite sol–gel thin films
Luminescence properties from erbium (III) oxide nanocrystals dispersed in titania/organically modified silane composite thin films were studied. Erbium oxide nanocrystals were prepared by an inverse microemuls...
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Article
Strip-Loaded High-Confinement Waveguides for Photonic Applications
Sol-gel is a promising deposition technique for the fabrication of silica-on-silicon photonic components. Silica-titania compositions provide large index differences, and thus strong mode confinement, and are ...