Abstract

This study reports oil the first monodispersed molecular materials embodying the dibenzothiophene-5,5-dioxide core for the achievement of blue electroluminescence. The core has been functionalised in its 2.8- or 3,7-positions with dimethyl-fluorene (2,8-DBTOF and 3,7-DBTOF) or methyl-carbazole (2,8-DBTOC and 3,7-DBTOC) groups. The obtained compounds were characterised by H-1 and C-13 NMR, APCI-MS, thermal analysis (TGA and DSQ and cyclic voltammetry. Their optical and photophysical properties were investigated by UV and PL measurements as well as by time-dependent density-functional theory calculations. The materials were successfully employed as active layers ill blue to purplish blue p-i-n OLED devices. that reached, in the case of 3,7-DBTOC, performances as high as 11 422 cd m(-2) and 3.25 cd A(-1).

Autore Pugliese

• Gigli Giuseppe , Colella Silvia , Ciccarella Giuseppe , Mazzeo Marco

Tutti gli autori

• R. Grisorio , G. Melcarne , G. P. Suranna , P. Mastrorilli , C. F. Nobile , P. Cosma , P. Fini , S. Colella , E. Fabiano , M. Piacenza , F. D. Sala , G. Ciccarella , M. Mazzeo , G. Gigli

Titolo volume/Rivista

JOURNAL OF MATERIALS CHEMISTRY

Anno di pubblicazione

2010

ISSN

0959-9428

ISBN

Non Disponibile

Numero di citazioni Wos

23

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

24

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile