Luca Ravagnan

Cluster-Beam Deposition and in situ Characterization of Carbyne-Rich Carbon Films

Nanostructured carbon films produced by supersonic cluster beam deposition have been studied by in situ Raman spectroscopy. Raman spectra show the formation of a sp2 solid with a very large fraction of sp-coordinated carbyne species with a long-term stability under ultrahigh vacuum. Distinct Raman contributions from polyyne and cumulene species have been observed, as well as different stabilities under gas exposure. Our experiments confirm theoretical predictions and demonstrate the possibility of producing a carbyne-rich pure carbon solid. The stability of the sp2-sp network has important implications for astrophysics and for the production of novel carbon-based systems.

Highly Deformable Nanostructured Elastomeric Electrodes With Improving Conductivity Upon Cyclical Stretching

Many applications in biomedicine, prosthetics, wearable electronics, and robotics require the integration of electronic, optical, and actuation capabilities on soft and conformable polymeric substrates. [ 1 ] Much progress has been made in this area, in particular in the fabrication of circuits and devices on fl exible substrates [ 2 ] and those that utilize mass-production manufacturing processes to produce fl exible solar cells, [ 3 ] fl exible displays, [ 4 ] smart clothing, [ 5 ] sensors, and actuators. [ 6 , 7 ]

Low-frequency modes in the Raman spectrum of sp-sp2 nanostructured carbon

Amorphous carbon films with

Synthesis, Characterization, and Modeling of Naphthyl-Terminated sp Carbon Chains: Dinaphthylpolyynes

sp\text{\ensuremath{-}}s{p}^{2}

Poly(methyl methacrylate)?palladium clusters nanocomposite formation by supersonic cluster beam deposition: a method for microstructured metallization of polymer surfaces

hybridization, produced by supersonic cluster beam deposition, shows the presence of both polyynic and cumulenic species [L. Ravagnan et al., Phys. Rev. Lett. 98, 216103 (2007)]. Here, we present an in situ Raman characterization of the low-frequency vibrational region

Patterning of gold-polydimethylsiloxane (Au-PDMS) nanocomposites by supersonic cluster beam implantation

(400\char21{}800\text{ }{\text{cm}}^{\ensuremath{-}1})

sp hybridization in free carbon nanoparticles-presence and stability observed by near edge X-ray absorption fine structure spectroscopy

of

Vibrational characterization of dinaphthylpolyynes: a model system for the study of end-capped sp carbon chains.

sp\text{\ensuremath{-}}s{p}^{2}

Stretchable nanocomposite electrodes with tunable mechanical properties by supersonic cluster beam implantation in elastomers

films at different temperatures. We report the presence of two peaks at 450 and

A simple scanning spectrometer based on a stretchable elastomeric reflective grating

720\text{ }{\text{cm}}^{\ensuremath{-}1}