Abstract

The coupling of the electromagnetic field with an electronic transition gives rise, for strong enough light-matter interactions, to hybrid states called exciton-polaritons. When the energy exchanged between light and matter becomes a significant fraction of the material transition energy an extreme optical regime called ultrastrong coupling (USC) is achieved. We report a microcavity embedded p-i-n monolithic organic light emitting diode working in USC, employing a thin film of squaraine dye as active layer. A normalized coupling ratio of 30% has been achieved at room temperature. These USC devices exhibit a dispersion-less angle-resolved electroluminescence that can be exploited for the realization of innovative optoelectronic devices. Our results may open the way towards electrically pumped polariton lasers. (C) 2014 AIP Publishing LLC.

Autore Pugliese

• Gigli Giuseppe , Gambino Salvatore , Mazzeo Marco

Tutti gli autori

• Mazzeo M. , Genco A. , Gambino S. , Ballarini D. , Mangione F. , Di Stefano O. , Patane, S. , Savasta S. , Sanvitto D. , Gigli G.

Titolo volume/Rivista

APPLIED PHYSICS LETTERS

Anno di pubblicazione

2014

ISSN

0003-6951

ISBN

Non Disponibile

Numero di citazioni Wos

24

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

23

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile