Spirobifluorene-2,7-dicarbazole-4'-phosphine Oxide as Host for High-Performance Single-Layer Green Phosphorescent OLED Devices

Sébastien Thiery; Denis Tondelier; Bernard Geffroy; Emmanuel Jacques; Malo Robin; Rémi Métivier; Olivier Jeannin; Joëlle Rault-Berthelot; Cyril Poriel

doi:10.1021/acs.orglett.5b02027

Spirobifluorene-2,7-dicarbazole-4'-phosphine Oxide as Host for High-Performance Single-Layer Green Phosphorescent OLED Devices

Org Lett. 2015 Oct 2;17(19):4682-5. doi: 10.1021/acs.orglett.5b02027.

Authors

Sébastien Thiery¹, Denis Tondelier², Bernard Geffroy^{2

3}, Emmanuel Jacques⁴, Malo Robin⁴, Rémi Métivier⁵, Olivier Jeannin¹, Joëlle Rault-Berthelot¹, Cyril Poriel¹

Affiliations

¹ UMR CNRS 6226, Institut des Sciences Chimiques de Rennes , Rennes 35042 Cedex, France.
² UMR 7647, LPICM, École Polytechnique ,91128 Palaiseau, France.
³ LICSEN, NIMBE UMR 3685, CEA Saclay , 91191 Gif Sur Yvette, France.
⁴ UMR CNRS 6164, Institut d'Électronique et de Télécommunications de Rennes , Rennes 35042 Cedex, France.
⁵ UMR CNRS 8531, PPSM, ENS Cachan , 94235 Cachan, France.

PMID: 26371550
DOI: 10.1021/acs.orglett.5b02027

Abstract

A new host material based on the 2,7,4'-substituted spirobifluorene platform has been designed and used in single-layer phosphorescent OLED with very high efficiency (EQE = 13.2%) and low turn-on voltage (2.4 V). This performance is among the best reported for green single-layer PhOLEDs and may open new avenues in the design of host materials for single-layer devices.