Properties modulation of organic semi-conductors based on a donor-spiro-acceptor (D-spiro-A) molecular design: new host materials for efficient sky-blue PhOLEDs

Maxime Romain (1) , Denis Tondelier (2) , Olivier Jeannin (1) , Bernard Geffroy (2, 3) , Joëlle Rault-Berthelot (1) , Cyril Poriel (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 LPICM - Laboratoire de physique des interfaces et des couches minces [Palaiseau]
3 LICSEN - Laboratoire Innovation en Chimie des Surfaces et NanoSciences

Four high triplet org. semi-conductors based on the donor-spiro-acceptor design (D-spiro-A) have been synthesized. Their physicochem. and photophys. properties have been studied, compared and discussed in light of the nature of their resp. donor/acceptor units. The four compds. have been used as host materials in efficient sky-blue (EQE \textgreater 10% at 10 mA cm-2) phosphorescent org. light emitting diodes.

Domains: Chemical Sciences; Chemical Sciences; Material chemistry

Maxime Romain, Denis Tondelier, Olivier Jeannin, Bernard Geffroy, Joëlle Rault-Berthelot, et al.. Properties modulation of organic semi-conductors based on a donor-spiro-acceptor (D-spiro-A) molecular design: new host materials for efficient sky-blue PhOLEDs. Journal of Materials Chemistry C, 2015, 3 (37), pp.9701-9714. ⟨10.1039/C5TC01812A⟩. ⟨hal-01198726⟩