Person
Luca Francaviglia
This person is no longer with EPFL
Related publications (16)
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 ...
2018Nanoporous silicon tubes: the role of geometry in nanostructure formation and application to light emitting diodes
Anna Fontcuberta i Morral, Heidi Andrea Potts, Luca Francaviglia, Jelena Vukajlovic Plestina, Francesca Amaduzzi
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 Physics2017Surface passivation and self-regulated shell growth in selective area-grown GaN-(Ale,Ga)N core-shell nanowires
Anna Fontcuberta i Morral, Luca Francaviglia
The large surface-to-volume ratio of GaN nanowires implicates sensitivity of the optical and electrical properties of the nanowires to their surroundings. The implementation of an (Al, Ga) N shell with a larger band gap around the GaN nanowire core is a pr ...
Royal Society of Chemistry2017Strain-Induced Band Gap Engineering in Selectively Grown GaN-(Al,Ga)N Core-Shell Nanowire Heterostructures
Anna Fontcuberta i Morral, Luca Francaviglia
We demonstrate the selective area growth of GaN-(Al,Ga)N core shell nanowire heterostructures directly on Si(111). Photoluminescence spectroscopy on as-grown nanowires reveals a strong blueshift of the GaN band gap from 3.40 to 3.64 eV at room temperature. ...
American Chemical Society2016Quantum dots in the GaAs/AlxGa1-xAs core-shell nanowires: Statistical occurrence as a function of the shell thickness
Anna Fontcuberta i Morral, Federico Matteini, Sonia Conesa Boj, Luca Francaviglia, Yannik Fontana, Léo Duchêne
Quantum dots (QDs) embedded in nanowires represent one of the most promising technologies for applications in quantum photonics. Self-assembled bottom-up fabrication is attractive to overcome the technological challenges involved in a top-down approach, bu ...
American Institute of Physics2015Three-dimensional nanoscale study of Al segregation and quantum dot formation in GaAs/AlGaAs core-shell nanowires
Anna Fontcuberta i Morral, Martin Heiss, Eleonora Russo, Sonia Conesa Boj, Luca Francaviglia, Yannik Fontana
GaAs/Al-GaAs core-shell nanowires fabricated by molecular beam epitaxy contain quantum confining structures susceptible of producing narrow photoluminescence (PL) and single photons. The nanoscale chemical mapping of these structures is analyzed in 3D by a ...
American Institute of Physics2014