Publications de Anna Fontcuberta i Morral

Thermal Rectification in Telescopic Nanowires: Impact of Thermal Boundary Resistance

A thermal diode, which, by analogy to its electrical counterpart, rectifies heat current, is the building block for thermal circuits. To realize a thermal diode, we demonstrate thermal rectification in a GaAs telescopic nanowire system using the thermal br ...

2025

Gate-Tunable Hole Transport in In-Plane Ge Nanowires by V-Groove Confined Selective Epitaxy

Anna Fontcuberta i Morral, Alok Rudra, Santhanu Panikar Ramanandan, Victor Carle Adrien Boureau

Germanium (Ge) nanowires hold great promise as building blocks for hole spin-based quantum processors. Realizing this potential requires their direct integration onto silicon (Si) wafers. This work introduces V-groove-confined selective epitaxy to enable t ...

WILEY-V C H VERLAG GMBH2025

Modeling nanoscale junctions for device architectures

Anna Fontcuberta i Morral, Raphaël François Lemerle

FUNDACIO DE LA COMUNITAT VALENCIANA SCITO2024

Scalable Receivers Based on Horizontally-grown InAs Nanowires Promise All-fiber Terahertz Spectrometer Systems

Anna Fontcuberta i Morral, Didem Dede, Valerio Piazza, Victor Carle Adrien Boureau, Nicholas Paul Morgan

Nanowire-based terahertz photoconductive receivers offer many advantages over the existing bulk-based receivers, such as the capability of measuring the full terahertz polarization state and integrating into micro/nano-systems. However, their detection per ...

IEEE Computer Society2024

Unveiling the complex phonon nature and phonon cascades in 1L to 5L WSe2 using multiwavelength excitation Raman scattering

Anna Fontcuberta i Morral, Mitali Banerjee, Mirjana Dimitrievska

Tungsten diselenide (WSe2) is a 2D semiconducting material, promising for novel optoelectronic and phononic applications. WSe2 has complex lattice dynamics and phonon structure. Numerous discrepancies in the literature exist regarding the interpretation an ...

Royal Society of Chemistry (RSC)2024

Towards Quantitative Terahertz Characterisation of Zinc Phosphide Thin Films for Photovoltaic Applications

Anna Fontcuberta i Morral, Elias Zsolt Stutz, Jean-Baptiste Leran, Simon Robert Escobar Steinvall, Rajrupa Paul, Mirjana Dimitrievska, Léa Buswell

The earth-abundant and non-toxic material Zinc phosphide (Zn3P2) is a promising candidate for solar cell applications. However, growth of defect-free, high-quality thin films on substrates that can integrate with current technology (e.g. silicon) remains c ...

IEEE Computer Society2024

Nucleation-Limited Kinetics of GaAs Nanostructures Grown by Selective Area Epitaxy: Implications for Shape Engineering in Optoelectronics Devices

Anna Fontcuberta i Morral, Alok Rudra, Valerio Piazza, Michele Zendrini

This dataset corresponds to the following manuscript: Zendrini, M., Dubrovskii, V., Rudra, A., Dede, D., Fontcuberta i Morral, A., Piazza, V. “Nucleation-Limited Kinetics of GaAs Nanostructures Grown by Selective Area Epitaxy: Implications for Shape Engi ...

Zenodo2024

Control of Ge island coalescence for the formation of nanowires on silicon

Anna Fontcuberta i Morral, Alok Rudra, Santhanu Panikar Ramanandan

Germanium nanowires could be the building blocks of hole-spin qubit quantum computers. Selective area epitaxy enables the direct integration of Ge nanowires on a silicon chip while controlling the device design, density, and scalability. For this to become ...

2024

Direct and integrating sampling in terahertz receivers from wafer-scalable InAs nanowires

Anna Fontcuberta i Morral, Didem Dede, Valerio Piazza, Victor Carle Adrien Boureau, Nicholas Paul Morgan

Terahertz (THz) radiation will play a pivotal role in wireless communications, sensing, spectroscopy and imaging technologies in the decades to come. THz emitters and receivers should thus be simplified in their design and miniaturized to become a commodit ...

Nature Research2024

Nucleation-Limited Kinetics of GaAs Nanostructures Grown by Selective Area Epitaxy: Implications for Shape Engineering in Optoelectronics Devices

Anna Fontcuberta i Morral, Alok Rudra, Didem Dede, Valerio Piazza, Michele Zendrini

The growth kinetics of vertical III−V nanowires (NWs) were clarified long ago. The increasing aspect ratio of NWs results in an increase in the surface area, which, in turn, enhances the material collection. The group III adatom diffusion from the NW sidew ...

American Chemical Society (ACS)2024