50 citations · 174 across the 21 of their papers we have counts for
9 papers · 1 filter
Direct observation of strain and confinement shaping the hole subbands of Ge quantum wells
Enrico Della Valle, Arianna Nigro, Miki Bonacci +6
Germanium-silicon-germanium (Ge/SiGe) heterostructures have emerged as a promising platform for hole-spin quantum technologies and high-mobility electronics, where st…
Bandgap Engineering On Demand in GaAsN Nanowires by Post-Growth HydrogennImplantation
Nadine Denis, Akant Sharma, Elena Blundo +9
Bandgap engineering in semiconductors is required for the development of photonic and optoelectronic devices with optimized absorption and emission energies. This is usually achiev…
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…
High quality CVD deposition of Ge layers for Ge/SiGe Quantum Well heterostructures
Arianna Nigro, Eric Jutzi, Nicolas Forrer +3
A great deal of interest is directed nowadays towards the development of innovative technologies in the field of quantum information and quantum computing, with emphasis on obtaini…
GaAs/GaP Superlattice Nanowires for Tailoring Phononic Properties at the Nanoscale: Implications for Thermal Engineering
Aswathi K. Sivan, Begoña Abad, Tommaso Albrigi +8
The possibility to tune the functional properties of nanomaterials is key to their technological applications. Superlattices, i.e., periodic repetitions of two or more materials in…
In-plane thermal diffusivity determination using beam-offset frequency-domain thermoreflectance with a one-dimensional optical heat source
Kai Xu, Jiali Guo, Grazia Raciti +6
We present an innovative contactless method suitable to study in-plane thermal transport based on beam-offset frequency-domain thermoreflectance using a one-dimensional heat source…
Probing Lattice Dynamics and Electronic Resonances in Hexagonal Ge and SixGe1-x Alloys in Nanowires by Raman Spectroscopy
Diego de Matteis, Marta De Luca, Elham M. T. Fadaly +5
Recent advances in nanowire synthesis have enabled the realization of crystal phases that in bulk are attainable only under extreme conditions, i.e. high temperature and/or high pr…
Experimental demonstration of the suppression of optical phonon splitting in 2D materials by Raman spectroscopy
Marta De Luca, Xavier Cartoixà, David I. Indolese +7
Raman spectroscopy is one of the most extended experimental techniques to investigate thin-layered 2D materials. For a complete understanding and modeling of the Raman spectrum of…
New insights in the lattice dynamics of monolayers, bilayers, and trilayers of WSe2 and unambiguous determination of few-layer-flakes' thickness
Marta De Luca, Xavier Cartoixà, Javier Martín-Sánchez +4
Among the most common few-layers transition metal dichalcogenides (TMDs), WSe2 is the most challenging material from the lattice dynamics point of view. Indeed, for a long time the…