Method for the synthesis of an array of metal nanowires supporting localized Plasmon resonances , and photonic device comprising said array

Il brevetto descrive la sintesi auto-organizzata di Nanofili metallici supportati su substrati a basso costo di vetro. I nanofili metallici presentano bassa resistenza elettrica di strato inferiore ai 5 Ohm sq, buona trasparenza ottica. Vantaggiosamente inoltre i nanofili metallici supportano risonanza plasmoniche localizzate. Queste propriet\ue0 rendono i nuovi materiali una promettente alternativa agli ossidi conduttori trasparenti convenzionali, se utilizzati come substrati per dispositivi fotonici quali celle solari a film sottile

Nanostructuring Rh(110) Surfaces by Ion Etching

The ion irradiation of the Rh(110) surface results in the self-organised formation of various nano-structured morphologies like ripples, mounds, pyramids which have been thoroughly studied as a function of the incidence angle and of the impact energy of the impinging ions. A study of the evolution of the surface ripples at various impact energies above the hot-spot threshold, has been rationalized in terms of a contribution due to an ion-induced surface diffusion mechanism. In the very low ion incidence regime, where the formation of hot spots following ion impact is inhibited, the formation of a rhomboidal pyramid pattern is singled out and attributed to the predominant reorganization of surface adatom and vacancies produced in the topmost surface layers. The metastable rhomboidal pyramid pattern, was recently proven to have extraordinary chemical reactivity since it is endowed with a very high density of undercoordinated step sites runnin along the very open azimuthal direction