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

• Capodilupo Agostina Lina , Accorsi Gianluca , Maiorano Vincenzo

Tutti gli autori

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

Titolo volume/Rivista

Inorganic chemistry

Anno di pubblicazione

2016

ISSN

1520-510X

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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