| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Falqui, Andrea
University of Milan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (33/33 displayed)
- 2023Engineering the structural and electrical interplay of nanostructured Au resistive switching networks by controlling the forming processcitations
- 2023Super-Stretchable Resistive Strain Sensor Based on Ecoflex–Gold Nanocompositescitations
- 2022Hardening of Nanoporous Au Induced by Exposure to Different Gaseous Environmentscitations
- 2021Magnetic Study of CuFe2O4-SiO2 Aerogel and Xerogel Nano-compositescitations
- 2017Building Composite Iron–Manganese Oxide Flowerlike Nanostructures: A Detailed Magnetic Studycitations
- 2017Laboratory injection molder for the fabrication of polymeric porous poly-epsilon-caprolactone scaffolds for preliminary mesenchymal stem cells tissue engineering applicationscitations
- 2016Manganese doped-iron oxide nanoparticle clusters and their potential as agents for magnetic resonance imaging and hyperthermiacitations
- 2016Laboratory injection molder for the fabrication of polymeric porous poly-epsilon-caprolactone scaffolds for preliminary mesenchymal stem cells tissue engineering applicationscitations
- 2015Au-assisted growth of anisotropic and epitaxial cdse colloidal nanocrystals via in situ dismantling of quantum dotscitations
- 2015Fabrication, Mercury Intrusion Porosimetry Characterization and In Vitro Qualitative Analysis of Biocompatibility of Various Porosities Polycaprolactone Scaffoldscitations
- 2015Tuning light emission of PbS nanocrystals from infrared to visible range by cation exchangecitations
- 2014Exfoliated graphene into highly ordered mesoporous titania films: highly performing nanocomposites from integrated processingcitations
- 2014Direct sol-gel synthesis of doped cubic mesoporous SBA-16 monolithscitations
- 2013Cubic mesoporous silica (SBA-16) prepared using butanol as the co-surfactant: A general matrix for the preparation of FeCo-SiO2 nanocompositescitations
- 2012Size-Tunable, Hexagonal Plate-like Cu(3)P and Janus-like Cu-Cu(3)P Nanocrystalscitations
- 2012Tactile multisensing on flexible aluminum nitridecitations
- 2011Sequential cation exchange in nanocrystals: Preservation of crystal phase and formation of metastable phasescitations
- 2011Charge Transport and Electrochemical Properties of Colloidal Greigite (Fe(3)S(4)) Nanoplateletscitations
- 2011Nanochains Formation of Superparamagnetic Nanoparticlescitations
- 2011In situ synthesis of cobalt nanoparticles in functionalized liquid crystalline polymerscitations
- 2011Nanocomposite mesoporous ordered films for lab-on-chip intrinsic surface enhanced Raman scattering detectioncitations
- 2011Synthesis and characterization of multiwalled carbon Nanotube/FeCo nanocompositescitations
- 2010Dynamical Formation of Spatially Localized Arrays of Aligned Nanowires in Plastic Films with Magnetic Anisotropycitations
- 2010Organometallic Synthesis of beta-CoAl Nanoparticles and beta-CoAl/Al Nanoparticles and Their Behaviour upon Air Exposurecitations
- 2010Preparation of Mn, Ni, Co Ferrite Highly Porous Silica Nanocomposite Aerogels by an Urea-Assisted Sol-Gel Procedurecitations
- 2009Hierarchical porous silica films with ultralow refractive indexcitations
- 2009Exchange-Coupled Bimagnetic Cobalt/Iron Oxide Branched Nanocrystal Heterostructurescitations
- 2009An original growth mode of MWCNTs on alumina supported iron catalystscitations
- 2009Iron Nanoparticle Growth in Organic Superstructurescitations
- 2009Fluorescent Asymmetrically Cobalt-Tipped CdSe@CdS Core@Shell Nanorod Heterostructures Exhibiting Room-Temperature Ferromagnetic Behaviorcitations
- 2008An organometallic approach for very small maghemite nanoparticles: Synthesis, characterization, and magnetic propertiescitations
- 2008One-pot synthesis and characterization of size-controlled bimagnetic FePt-iron oxide heterodimer nanocrystalscitations
- 2007Maghemite polymer nanocomposites with modulated magnetic propertiescitations
Places of action
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article
Hierarchical porous silica films with ultralow refractive index
Abstract
<p>Fabrication of hierarchical porous thin films with controlled pore dimension and shape is a current challenge in materials science. In this work, bimodal hierarchical hybrid organic-inorganic thin films with pores in the meso and macro range have been fabricated. The first order of porosity is obtained through a self-assembly process using organic block copolymers as templates for mesopores; the mesophase in the films is well-ordered and has a tetragonal symmetry. We have introduced fluorinated organic nanoparticles of around 70 nm in the precursor solution to act as template of the second order of porosity. The introduction of the nanoparticles has not affected the organization of the mesophase and after the film deposition the nanoparticles become randomly dispersed within the mesostructured matrix. The organization of the mesophase has been studied in situ by small-angle X-ray scattering using synchrotron light; conventional and high-resolution transmission electron microscopy have been used for direct observation of the porosity morphology. The results indicate that hierarchical porous thin films with a bimodal distribution of the pores are obtained upon postsynthesis calcination at 350 °C. The hierarchical porous thin films have a very low refractive index, 1.14 at 633 nm, lower than the 1.17 value measured for the monomodal mesoporous films. The introduction of templating nanoparticles that are removed upon thermal treatment represents, therefore, a successful strategy to decrease the refractive index in porous films. We have also demonstrated that patterning techniques developed for mesostructured films can be successfully extended to this new typology of hierarchical films. Arrays with bimodal hierarchical pore distribution have been fabricated.</p>