Amorphous iridium complexes for electrophosphorescent light emitting devicesElectronic supplementary information (ESI) available: experimental details, synthetic and spectroscopic data. See http://www.rsc.org/suppdata/cc/b2/b200957a/

Abstract
Iridium complexes with fluorene-modified phenylpyridine ligands are resistant to crystallization and can be used in the fabrication of single layer light emitting diodes.