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- Title
ortho-, meta-, and para-Dihydroindenofluorene Derivatives as Host Materials for Phosphorescent OLEDs.
- Authors
Romain, Maxime; Thiery, Sébastien; Shirinskaya, Anna; Declairieux, Céline; Tondelier, Denis; Geffroy, Bernard; Jeannin, Olivier; Rault‐Berthelot, Joëlle; Métivier, Rémi; Poriel, Cyril
- Abstract
This work reports the first structure-properties relationship study of ortho [2,1- c]-, meta [1,2- a]-, and para [1,2- b]dihydroindenofluorenes, highlighting the influence of bridge rigidification on the electronic properties. This study has made it possible to devise an extended π-conjugated molecule with both a high triplet state energy level and excellent thermal and morphological stability. As a proof of concept, dihydroindenofluorenes were used as the host in sky-blue phosphorescent organic light-emitting diodes (PhOLEDs) with high performance.
- Subjects
PHOSPHORS; ORGANIC light emitting diodes; TRIPLET state (Quantum mechanics); THERMAL stability; ORGANIC electronics
- Publication
Angewandte Chemie International Edition, 2015, Vol 54, Issue 4, p1176
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201409479