http://www.cnr.it/ontology/cnr/individuo/prodotto/ID285239

Light-Induced Field Enhancement in Nanoscale Systems from First-Principles: The Case of Polyacenes (Articolo in rivista)

Type

Label

Light-Induced Field Enhancement in Nanoscale Systems from First-Principles: The Case of Polyacenes (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

L. Bursi [1,2], A. Calzolari [2], S. Corni [1], and E. Molinari [1,2] (2014)
Light-Induced Field Enhancement in Nanoscale Systems from First-Principles: The Case of Polyacenes
in ACS Photonics
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

[1] Dipartimento di Fisica, Informatica e Matematica, Università di Modena e Reggio Emilia, I-41125 Modena, Italy [2] Istituto Nanoscienze CNR-NANO-S3, I-41125 Modena, Italy (literal)

Titolo

Light-Induced Field Enhancement in Nanoscale Systems from First-Principles: The Case of Polyacenes (literal)

Abstract

Using first-principles calculations we studied the electric field enhancement in polyacene molecules upon illumination. These molecules can be seen as a specific class of C-based (i.e., graphene-derived) nanostructures, recently proposed as alternative materials for plasmonics. We demonstrate that optical transitions may generate oscillating dipolar response charge, giving rise to an induced electric field near the molecule, which thus acts as a plasmon-like nanoantenna. While the field amplification in the vicinity of single acenes is rather small and decreases when the size of the system is increased, it may be selectively enhanced in the case of acene's assemblies. This paves the way for the design of more complex C-based architectures explicitly conceived to improve the amplification factor. (literal)

Prodotto di