45 citations · 142 across the 15 of their papers we have counts for
16 papers
Unraveling energy flow mechanisms in semiconductors by ultrafast spectroscopy: Germanium as a case study
Grazia Raciti, Begoña Abad, Riccardo Dettori +8
Semiconductor materials are the foundation of modern electronics, and their functionality is dictated by the interactions between fundamental excitations occurring on (sub-)picosec…
Enhancing heat transport in MoS2 via defect-engineering
Riccardo Dettori, Francesco Siddi, Luciano Colombo +1
MoS2 is one of the most investigated and promising transition-metal dichalcogenides. Its popularity stems from the interesting properties of the monolayer phase, which can serve as…
Understanding coupled mass-heat transport in fluids by approach-to-equilibrium molecular dynamics
Antonio Cappai, Luciano Colombo, Claudio Melis
We present a generalization of AEMD approach, routinely applied to estimate thermal conductivity, to the more general case in which Soret and Dufour effects determine a coupled hea…
Multiscale modeling of resistive switching in gold nanogranular films
Miquel López-Suárez, Claudio Melis, Luciano Colombo +1
Metallic nanogranular films display a complex dynamical response to a constant bias, showing up as atypical resistive switching mechanism which could be used to create electrical c…
Thermal transport in ultrathin Si nanowires: a first principles study
Konstanze R. Hahn, Claudio Melis, Fabio Bernardini +2
Phonon properties of small Si nanowires in [110] direction have been analyzed using density functional perturbation theory. Several samples with varying diameters ranging from 0.38…
Stiffening of nanoporous Au as a result of dislocation density increase upon characteristic length reduction
Claudio Melis, Giorgio Pia, Elisa Sogne +4
Structure is the most distinctive feature of nanoporous metals. The intricate maze of rounded shapes, where ligaments and pores run after each other disorderly, strikes imagination…
Modelling charge transport in gold nanogranular films
Miquel López-Suárez, Claudio Melis, Luciano Colombo +1
Cluster-assembled metallic films show interesting electrical properties, both in the near-to-percolation regime, when deposited clusters do not form a complete layer yet, and when…
Thermal conductivity of benzothieno-benzothiophene derivatives at the nanoscale
Magatte N. Gueye, Alexandre Vercouter, Rémy Jouclas +9
We study by scanning thermal microscopy the nanoscale thermal conductance of films (40 to 400 nm thick) of [1]benzothieno[3,2-b][1]benzothiophene (BTBT) and 2,7-dioctyl[1]benzothie…
Observation of second sound in a rapidly varying temperature field in Ge
Albert Beardo, Miquel López-Suárez, Luis Alberto Pérez +9
Second sound is known as the thermal transport regime where heat is carried by temperature waves. Its experimental observation was previously restricted to a small number of materi…
Thermal boundary resistance from transient nanocalorimetry: a multiscale modeling approach
Claudia Caddeo, Claudio Melis, Andrea Ronchi +5
The Thermal Boundary Resistance at the interface between a nanosized Al film and an Al_{2}O_{3} substrate is investigated at an atomistic level. A room temperature value of 1.4 m^{…
Density functional theory calculations of the stress of oxidised (110) silicon surfaces
C Melis, S Giordano, L Colombo +1
The measurement of the lattice-parameter of silicon by x-ray interferometry assumes the use of strain-free crystals. This might not be the case because surface relaxation, reconstr…
Thermal transport in nanocrystalline graphene investigated by approach-to-equilibrium molecular dynamics simulations
Konstanze R. Hahn, Claudio Melis, Luciano Colombo
Approach-to-equilibrium molecular dynamics simulations have been used to study thermal transport in nanocrystalline graphene sheets. Nanostructured graphene has been created using…
Lattice strain at c-Si surfaces: a density functional theory calculation
Claudio Melis, Luciano Colombo, Giovanni Mana
The measurement of the Avogadro constant by counting Si atoms is based on the assumption that Si balls of about 94 mm diameter have a perfect crystal structure up to the outermost…
Neutral-cluster implantation in polymers by computer experiments
Roberto Cardia, Claudio Melis, Luciano Colombo
In this work we perform atomistic model potential molecular dynamics simulations by means of state-of-the art force-fields to study the implantation of a single Au nanocluster on a…
Atomistic investigation of the poly(3-hexylthiophene) adhesion on nanostructured titania
Claudio Melis, Alessandro Mattoni, Luciano Colombo
We study the adhesion of poly(3-hexylthiophene) on nanostructured titania surface in vacuo by means of model potential molecular dynamics. We generate large scale atomistic models…
Self assembling of Poly(3-hexylthiophene) (P3HT)
Claudio Melis, Alessandro Mattoni, Luciano Colombo
We study the assembling of P3HT chains in vacuo by means of a combination of first principles density functional theory and model potential molecular dynamics. We find that, in the…