Bulky, Dendronized Iridium Complexes and their Photoluminescence
Solution-processed blue emitters are essential for low-cost organic light-emitting diodes (OLEDs) but still face challenges due to their poor color purity, low efficiency and limited operational stability. Herein, by extending the conjugation of ultraviolet-emissive, facial tris(diphenylbenzimidazolyl)iridium (Ir) (fac-(dpbic)3Ir), we introduce two new types of solution-processed emitters, i.e. triisopropylsilylethynyl(TIPSE)-substituted fac-(dpbic)3Ir (2) and fac-(dpbic)3Ir-based polyphenylene dendrimers D1 and D2. The emissions of Ir-complex 2 and the dendrimers were successfully pushed toward a pure and sky blue color, respectively, due to the dominant 3π–π* nature of their emissive exci…
CCDC 1948965: Experimental Crystal Structure Determination
Related Article: Guang Zhang, Felix Hermerschmidt, Anup Pramanik, Dieter Schollmeyer, Martin Baumgarten, Pranab Sarkar, Emil J. W. List-Kratochvil, Klaus Müllen|2019|J.Mater.Chem.C|7|15252|doi:10.1039/C9TC04748D