Luca Francaviglia, Yannik Fontana, Sonia Conesa-Boj, Gözde Tutuncuoglu, Mihaela Tanasescu, Leo Duchene, Federico Matteini, Anna Fontcuberta i Morral (2015), Quantum dots in the GaAs/AlGaAs core-shell nanowires: statistical occurrence as a function of the shell thickness’, in Applied Physics Letters
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Fontana Y, Corfdir P. et al (2014), Exciton footprint of self-assembled AlGaAs quantum dots in core-shell nanowires, in Physical Review B
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Montinaro Michele, Wust Gunter, Munsch Matthieu, Fontana Yannik, Russo-Averchi Eleonora, Fontcuberta i Morral Anna, Warburton Richard, Poggio Martino (2014), Quantum dot opto-mechanics in a fully self-assembled nanowire, in Nano Letters
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Lorenzo Mancini, Yannik Fontana, Sonia Conesa-Boj, I Vlum, F Vurpillot, Luca Francaviglia, Eleonora Russo-Averchi, Martin Heiss, Jordi Arbiol, Anna Fontcuberta i Morral, Lorenzo Rigutti (2014), Three-dimensional nanoscale study of Al segregation and QD formation in GaAs/AlGaAs core-shell nanowires’, in Applied Physics Letters
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Pierre Corfdir, Yannik Fontana, Barbara van Hattem, Eleonora Russo-AVerchi, Martin Heiss, Anna Fontcuberta i Morral, Robert T Phillips (2014), Tuning the g-factor of excitons and charged excitons confined to self-assembled (Al,Ga)As shell quantum dots’, in Applied Physics Letters
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heiss martin, fontana yannik, fontcuberta i morral Anna (2013), Self-assembled quantum dots in a nanowire system for quantum photonics, in Nature Materials
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Today, most modern technology relies mainly on materials with reduced dimensionalities, such as thin films (2D), nanowires (1D), and quantum dots (0D). An extreme success in synthesis, characterization, and application of the respective - but separated - material classes has been achieved within the past 30 years. In this research proposal we merge: (a) three young and important research groups out of Switzerland, Austria and Germany, as well as (b) two of the most important nanostructures for future applications: quantum dots and nanowires, which will result into nano-materials with superior functionality. The synthesis techniques will be based on the use of phase separation as a vehicle for creating inhomogeneities within particular nanowire materials. Three promising approaches will be investigated within our research: (i) synthesis of stochiometrically unstable compounds during growth, (ii) subse¬quent ion implantation beyond solubility limits, and (iii) controlled phase conversion by dif¬fusion. The resulting “wired quantum dots” will need a comprehensive structural characterization using e.g. electron microscopy, X-Ray diffraction and Raman scattering so that the optimum synthesis parameters can be identified. The main focus of this project is the investigation of the correlation between the structure and functionality of the wired quantum dots, in order to enable novel electronic and photonic devices. A long term goal of the project includes indeed the realization of a proto-type light emitting diode device or an electrical memory transistor with high-performance properties.