title: Optical properties of nanoalloys.
abstract: The optical properties of multi-component metal nanostructures (or nanoalloys) are the subject of an intense and rapidly growing experimental and theoretical activity. In this perspective article, we first provide a survey of the most recent developments in the field, concerning both theoretical methods, especially at the first-principles level, and novel results, distinguishing for the convenience of presentation the sub-field of monolayer-protected multi-component metal clusters from the other alloy nanosystems. We then discuss a few general concepts which can be drawn from this survey, and offer a few suggestions on the most promising directions for future research. We hope that making the point in this fast developing field will provide a framework and a perspective useful to trigger future studies and advancements.
authors: CNR-ICCOM & IPCF, Consiglio Nazionale delle Ricerche, via G. Moruzzi 1, 56124, Pisa, Italy. alessandro.fortunelli@cnr.it.
authors: Giovanni
authors: G
authors: Barcaro
authors: Luca
authors: L
authors: Sementa
authors: Alessandro
authors: A
authors: Fortunelli
authors: Mauro
authors: M
authors: Stener