Descrizione del progetto
Le instabilità della pellicola sottile aiutano la progettazione di dispositivi fotonici e di rilevamento flessibili
La deumidificazione allo stato solido descrive il processo in cui una pellicola sottile inizia a degenerare in goccioline separate quando riscaldata a una temperatura ben al di sotto del punto di fusione. Il progetto NARCISO, finanziato dall’UE, prevede di sfruttare le instabilità della pellicola sottile provocate dalla deumidificazione allo stato solido (in silicio e germanio) per formare modelli e nano-architetture complesse. I modelli saranno utilizzati come piattaforme epitassiali per la crescita di composti dei gruppi III-V a emissione di luce o come hard-master per l’imprinting di ossidi metallici. Le architetture previste includono strutture monocristalline atomicamente lisce e sistemi iperuniformi disordinati. Queste strutture saranno ottimizzate per l’uso in dispositivi fotonici o di rilevamento.
Obiettivo
NARCISO “NAtuRal instability of semiConductors thIn SOlid films for sensing and photonic applications” is an interdisciplinary project merging physics, chemistry, material science, fluid dynamics, and photonics with a high potential for applications and industrial scale-up of the relevant results. We propose to exploit the natural instability of thin solid films (solid state dewetting of silicon and germanium, SSD) to form complex patterns and nano-architectures (e.g. monocrystalline atomically-smooth structures, disordered hyperuniform metamaterials) that cannot be implemented with conventional methods. These patters will be used as: i) epitaxial platforms for the growth of light-emitting III-V compounds; ii) hard-masters for nano-imprint lithography of metal oxides (e.g. TiO2, SiO2, ZnO, Al2O3) deposited via sol-gel dip-coating (soft-NIL) and printed on arbitrary substrates, with tunable chemical and physical properties (e.g. composition, porosity, wettability). Methods and structures will be optimized towards their exploitation in two main domains of application: 1) photonic devices (e.g. anti-reflection coatings, colour-filters, random lasers, quantum emitters) and 2) micro-fluidic devices for bio/chemical sensing and water filtering. NARCISO holds the state-of-the-art in SSD and soft-NIL and is already at work in their theoretical comprehension their experimental implementation and practical exploitation. Now NARCISO will combine these techniques bringing them to the leading-edge of micro-and nanostructuring over ultra-large scales and with methods compatible with an industrial scale-up. The presence of the non-academic member Obducat Technologies is a strategic asset of the consortium as it is a major international actor in the nano-imprint lithography domain. It will provide the standard and needs for a realistic formulation of the relevant experimental methods and will demonstrate their implementation in a high-throughput industrial chain of production.
Campo scientifico
- natural scienceschemical sciencesinorganic chemistryinorganic compounds
- natural sciencesphysical sciencesclassical mechanicsfluid mechanicsfluid dynamics
- engineering and technologymaterials engineeringcoating and films
- natural sciencesphysical scienceselectromagnetism and electronicssemiconductivity
- natural scienceschemical sciencesinorganic chemistrymetalloids
Parole chiave
Programma(i)
Invito a presentare proposte
Vedi altri progetti per questo bandoBando secondario
H2020-FETOPEN-2018-2019-2020-01
Meccanismo di finanziamento
RIA - Research and Innovation actionCoordinatore
00185 Roma
Italia