Luca Francaviglia

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Photophysics behind highly luminescent two-dimensional hybrid perovskite (CH3(CH2)2NH3)2(CH3NH3)2Pb3Br10 thin films

Anna Fontcuberta i Morral, Luca Francaviglia, Pablo Romero Gómez

Two-dimensional (2D) Ruddlesden–Popper perovskites have emerged as a new class of hybrid materials with high photoluminescence and improved stability compared to their three-dimensional (3D) counterparts. Studies of the photophysics of these new 2D perovsk ...

Royal Society of Chemistry2018

Imaging Stray Magnetic Field of Individual Ferromagnetic Nanotubes

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

American Chemical Society (ACS)2018

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

Bi-stability of contact angle and its role in tuning the morphology of self-assisted GaAs nanowires

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

We demonstrate the existence of two stable contact angles for the gallium droplet on top of self-assisted GaAs nanowires grown by MBE on patterned silicon substrates. Contact angle around 130 degrees fosters a continuous increase in the nanowire radius, wh ...

IEEE2018

Bistability of Contact Angle and Its Role in Achieving Quantum-Thin Self-Assisted GaAs nanowires

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

American Chemical Society (ACS)2018

Tuning adatom mobility and nanoscale segregation by twin formation and polytypism

Anna Fontcuberta i Morral, Federico Matteini, Luca Francaviglia, Gözde Tütüncüoglu

Nanoscale variations in the composition of an AlxGa1−xAs shell around a GaAs nanowire affect the nanowire functionality and can lead to the formation of localized quantum emitters. These composition fluctuations can be the consequence of variations of crys ...

2018

Dopant-Induced Modifications of GaxIn(1-x)P Nanowire-Based p-n Junctions Monolithically Integrated on Si(111)

Anna Fontcuberta i Morral, Kirsten Emilie Moselund, Luca Francaviglia, Rolf Erni, Heike Riel, Nicolas Bologna

Today, silicon is the most used material in photovoltaics, with the maximum conversion efficiency getting very close to the Shockley-Queisser limit for single-junction devices. Integrating silicon with higher band-gap ternary III-V absorbers is the path to ...

2018

Anisotropic-Strain-Induced Band Gap Engineering in Nanowire-Based Quantum Dots

Anna Fontcuberta i Morral, Lucas Güniat, Luca Francaviglia, Andrea Giunto, Gözde Tütüncüoglu, Martin George Friedl, Heidi Andrea Potts, Wonjong Kim, Jelena Vukajlovic Plestina, Pablo Romero Gómez

American Chemical Society (ACS)2018

Dataset for "Tuning adatom mobility and nanoscale segregation by twin formation and polytypism"

Anna Fontcuberta i Morral, Federico Matteini, Luca Francaviglia

Zenodo2018

Nanoporous silicon tubes: the role of geometry in nanostructure formation and application to light emitting diodes

Anna Fontcuberta i Morral, Heidi Andrea Potts, Luca Francaviglia, Francesca Amaduzzi, Jelena Vukajlovic Plestina

Obtaining light emission from silicon has been the holy grail of optoelectronics over the last few decades. One of the most common methods for obtaining light emission from silicon is to reduce it to a nanoscale structure, for example by producing porous s ...

Institute of Physics2017

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Photophysics behind highly luminescent two-dimensional hybrid perovskite (CH3(CH2)2NH3)2(CH3NH3)2Pb3Br10 thin films

Anna Fontcuberta i Morral, Luca Francaviglia, Pablo Romero Gómez

Royal Society of Chemistry2018

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