Abstract

In this work, we investigate the optical and structural properties of the well-known triplet emitter bis(4',6'-difluorophenylpyridinato)-iridium(III) picolinate (FIrpic), showing that its ability to pack in two different ordered crystal structures promotes attractive photophysical properties that are useful for solid-state lighting applications. This approach allows the detrimental effects of the nonradiative pathways on the luminescence performance in highly concentrated organic active materials to be weakened. The remarkable electro-optical behavior of sky-blue phosphorescent organic light-emitting diodes incorporating crystal domains of FIrpic, dispersed into an appropriate matrix as an active layer, has also been reported as well as the X-ray diffraction, nuclear magnetic resonance, electro-ionization mass spectrometry, and scanning electron microscopy analyses of the crystalline samples. We consider this result as a crucial starting point for further research aimed at the use of a crystal triplet emitter in optoelectronic devices to overcome the long-standing issue of luminescence self-quenching.

Autore Pugliese

• Ciccarella Giuseppe , Gigli Giuseppe

Tutti gli autori

• Maggiore A. , Pugliese M. , Di Maria F. , Accorsi G. , Gazzano M. , Fabiano E. , Tasco V. , Esposito M. , Cuscunà M. , Blasi L. , Capodilupo A. , Ciccarella G. , Gigli G. , Maiorano V.

Titolo volume/Rivista

INORGANIC CHEMISTRY

Anno di pubblicazione

2016

ISSN

0020-1669

ISBN

Non Disponibile

Numero di citazioni Wos

1

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

1

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile