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2. Ge(2), Ge(1) and Ge-E´ centers in irradiated Ge-doped silicaLayla Martin-Samos, Nicolas Richard, Sylvain Girard, A. Boukenter, Youcef Ouerdane, Luigi Giacomazzi, 2015, original scientific article Found in: ključnih besedah
Keywords: silica, density-functional theory, defects
Published: 17.05.2016; Views: 3873; Downloads: 115
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3. Packing patterns of silica nanoparticles on surfaces of armored polystyrene latex particlesSara Fortuna, Catheline A. L. Colard, Stefan A. F. Bon, Alessandro Troisi, 2009, original scientific article Abstract: Fascinating packing patterns of identical spherical and discotic objects on curved surfaces occur readily in nature and science. Examples include C60 fullerenes,(1, 2)13-atom cuboctahedral metal clusters,(3) and S-layer proteins on outer cell membranes.(4) Numerous situations with surface-arranged objects of variable size also exist, such as the lenses on insect eyes, biomineralized shells on coccolithophorids,(5) and solid-stabilized emulsion droplets(6) and bubbles.(7) The influence of size variations on these packing patterns, however, is studied sparsely. Here we investigate the packing of nanosized silica particles on the surface of polystyrene latex particles fabricated by Pickering miniemulsion polymerization of submicrometer-sized armored monomer droplets. We are able to rationalize the experimental morphology and the nearest-neighbor distribution with the help of Monte Carlo simulations. We show that broadening of the nanoparticle size distribution has pronounced effects on the self-assembled equilibrium packing structures, with original 12-point dislocations or grain-boundary scars gradually fading out.
Found in: ključnih besedah
Keywords: packing patterns, silica, simulation, Monte Carlo, order, disorder, transition, armored particles, nanoparticles, Pickering emulsion
Published: 10.10.2016; Views: 3882; Downloads: 0
 Fulltext (3,85 MB) |
4. Accelerating GW calculations with optimal polarizability basisLuigi Giacomazzi, G Stenuit, Nicola Marzari, Paolo Umari, X Qian, Stefano Baroni, 2011, original scientific article Found in: ključnih besedah
Keywords: GW approximation, silicon nitride, silica, DFT
Published: 16.10.2018; Views: 2590; Downloads: 0
Fulltext (454,08 KB) |
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7. EPR parameters of E' centers in v-SiO2 from first-principles calculationsNicolas Richard, Sylvain Girard, Youcef Ouerdane, A. Boukenter, Layla Martin-Samos, Luigi Giacomazzi, 2014, original scientific article Found in: ključnih besedah
Keywords: silica, paramagnetic defects, EPR, disordered semiconductors
Published: 03.10.2018; Views: 3109; Downloads: 0
Fulltext (1,26 MB) |
8. Neutron irradiation effects on the structural properties of KU1, KS-4V and I301 silica glassesYoucef Ouerdane, A. Boukenter, A. Ibarra, Layla Martin-Samos, P. Martín, Nicolas Richard, Sylvain Girard, Luigi Giacomazzi, M. León, 2014, original scientific article Found in: ključnih besedah
Keywords: silica, defects, optical fibers, hardening
Published: 03.10.2018; Views: 2959; Downloads: 0
Fulltext (724,27 KB) |
9. Coupled theoretical and experimental studies for the radiation hardening of silica-based optical fibersR. Boscaino, M. Cannas, Youcef Ouerdane, A. Boukenter, S. Agnello, P. Paillet, Antonino Alessi, C. Marcandella, Diego Di Francesca, Layla Martin-Samos, Luigi Giacomazzi, Sylvain Girard, Nicolas Richard, 2014, original scientific article Found in: ključnih besedah
Keywords: silica, defects, optical fibers, hardening
Published: 03.10.2018; Views: 2914; Downloads: 0
Fulltext (803,09 KB) |
10. Medium-range structure of vitreous SiO2 obtained through first-principles investigation of vibrational spectraAlfredo Pasquarello, Paolo Umari, Luigi Giacomazzi, 2009, original scientific article Found in: ključnih besedah
Keywords: silica, Raman, infrared, v-DOS, first-principles, glass
Published: 15.10.2018; Views: 2470; Downloads: 0
Fulltext (874,77 KB) |
