Publications de Lea Ghisalberti

Dataset for "GaAs nanowires on Si nanopillars: towards large scale, phase-engineered arrays"

Anna Fontcuberta i Morral, Didem Dede, Jean-Baptiste Leran, Wonjong Kim, Nicholas Paul Morgan, Lea Ghisalberti, William Craig Carter, Akshay Balgarkashi

Large-scale patterning for vapor-liquid-solid growth of III-V nanowires is a challenge given the required feature size for patterning (45 to 60 nm holes). In fact, arrays are traditionally manufactured using electron-beam lithography,for which processing t ...

Zenodo2022

GaAs nanowires on Si nanopillars: towards large scale, phase-engineered arrays

Anna Fontcuberta i Morral, Didem Dede, Jean-Baptiste Leran, Wonjong Kim, Nicholas Paul Morgan, Lea Ghisalberti, Akshay Balgarkashi

Large-scale patterning for vapor-liquid-solid growth of III-V nanowires is a challenge given the required feature size for patterning (45 to 60 nm holes). In fact, arrays are traditionally manufactured using electron-beam lithography,for which processing t ...

2022

Focusing on the liquid role in the vapour liquid solid growth mechanism

Lea Ghisalberti

In this work we dive into key questions regarding the wetting of a nanoscale droplet which provides fundamental understanding of Vapor-Liquid-Solid growth mode of nanowires. This understanding is important to performreproducible NW fabrication and allow th ...

EPFL2021

Dataset for "Heterotwin Zn3P2 superlattice nanowires: the role of indium insertion in the superlattice formation mechanism and their optical properties"

Anna Fontcuberta i Morral, Elias Zsolt Stutz, Mahdi Zamani, Simon Robert Escobar Steinvall, Nicolas Tappy, Rajrupa Paul, Reza Zamani, Lea Ghisalberti, William Craig Carter

Raw data associated with the publication "Heterotwin Zn3P2 superlattice nanowires: the role of indium insertion in the superlattice formation mechanism and their optical properties", published in Nanoscale on the 22nd October 2020. ...

Zenodo2020

3D Ordering at the Liquid-Solid Polar Interface of Nanowires

Anna Fontcuberta i Morral, Michele Ceriotti, Cécile Hébert, Duncan Thomas Lindsay Alexander, Gözde Tütüncüoglu, Martin George Friedl, Luca Francaviglia, Mahdi Zamani, Nicolas Tappy, Giulio Imbalzano

The nature of the liquid-solid interface determines the characteristics of a variety of physical phenomena, including catalysis, electrochemistry, lubrication, and crystal growth. Most of the established models for crystal growth are based on macroscopic t ...

Wiley2020

Heterotwin Zn3P2 superlattice nanowires: the role of indium insertion in the superlattice formation mechanism and their optical properties

Anna Fontcuberta i Morral, Elias Zsolt Stutz, Jean-Baptiste Leran, Mahdi Zamani, Simon Robert Escobar Steinvall, Nicolas Tappy, Rajrupa Paul, Reza Zamani, Lea Ghisalberti

Zinc phosphide (Zn3P2) nanowires constitute prospective building blocks for next generation solar cellsdue to the combination of suitable optoelectronic properties and an abundance of the constitutingelements in the Earth’s crust. The generation of periodi ...

2020

Questioning liquid droplet stability on nanowire tips: from theory to experiment

Anna Fontcuberta i Morral, Lucas Güniat, Gözde Tütüncüoglu, Martin George Friedl, Heidi Andrea Potts, Mahdi Zamani, Lea Ghisalberti, William Craig Carter

2019

Growth of nanowire arrays from micron-feature templates

Anna Fontcuberta i Morral, Gaëtan Bernard, Martin George Friedl, Wonjong Kim, Dmitry Mikulik, Lea Ghisalberti, Pablo Romero Gómez, William Craig Carter, Christian André Jürgensen

Here, we present a two-step annealing procedure to imprint nanofeatures on SiO2 starting from metallic microfeatures. The first annealing transforms the microfeatures into gold nanoparticles and the second imprints these nanoparticles into the SiO2 layer w ...

2019

Fundamental aspects to localize self-catalyzed III-V nanowires on silicon

Anna Fontcuberta i Morral, Martin George Friedl, Heidi Andrea Potts, Wonjong Kim, Jelena Vukajlovic Plestina, Lea Ghisalberti, Vladimir Dubrovskii, William Craig Carter

III-V semiconductor nanowires deterministically placed on top of silicon electronic platform would open many avenues in silicon-based photonics, quantum technologies and energy harvesting. For this to become a reality, gold-free site-selected growth is nec ...

Nature Research2019

Optimizing the yield of A-polar GaAs nanowires to achieve defect-free zinc blende structure and enhanced optical functionality

Anna Fontcuberta i Morral, Lucas Güniat, Mahdi Zamani, Gözde Tütüncüoglu, Martin George Friedl, Heidi Andrea Potts, Jean-Baptiste Leran, Wonjong Kim, Luca Francaviglia, Vladimir Dubrovskii

2018