Ortho‐, meta‐, and para‐Dihydroindenofluorene Derivatives as Host Materials for Phosphorescent OLEDs1. (2nd December 2014)

• Record Type: Journal Article
• Authors: Romain, Maxime; Thiery, Sébastien; Shirinskaya, Anna; Declairieux, Céline; Tondelier, Denis; Geffroy, Bernard; Jeannin, Olivier; Rault‐Berthelot, Joëlle; Métivier, Rémi; Poriel, Cyril
• Is Part Of: Angewandte Chemie. Volume 127:Number 4(2015)
• Page Start: 1192
• Page End: 1196
• Publication Date: 2014-12-02
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201409479
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>This work reports the first structure–properties relationship study of <italic>ortho</italic> [2, 1‐<italic>c</italic>]‐, <italic>meta</italic> [1, 2‐<italic>a</italic>]‐, and <italic>para</italic> [1, 2‐<italic>b</italic>]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) <bold>w</bold>ith high performance.</p> </abstract>