Control of Charge Transport in Iridium(III) Complex-Cored Carbazole Dendrimers by Generation and Structural Modification

TitleControl of Charge Transport in Iridium(III) Complex-Cored Carbazole Dendrimers by Generation and Structural Modification
Publication TypeJournal Article
Year of Publication2009
AuthorsGambino, Salvatore, Stevenson Stuart G., Knights Kevin A., Burn P. L., and Samuel Ifor D. W.
JournalAdvanced Functional Materials
Volume19
Issue2
Pagination317–323
Date Published01/09
KeywordsCarbazoles, Dendrimers, Light-emitting diodes, Photovoltaic devices
AbstractAbstract Here, the charge transporting properties of a family of highly phosphorescent iridium(III) complex-cored carbazole dendrimers designed to have improved charge transport by incorporating carbazole units into the dendrons are studied. Firstly, the effect of the dendrimer generation and the role of dendron for materials with one dendron per ligand of the core are considered. It is shown, in contrast to previously reported light-emitting dendrimers, that in this case the carbazolyl-based dendrons have an active role in charge transport. Next, the effect on the charge transport of attaching two dendrons per ligand to the dendrimer core is explored. In this latter case, for the so called “double dendron
URLhttp://dx.doi.org/10.1002/adfm.200801144
DOI10.1002/adfm.200801144