Preparation of phosphorescent crystalline tris(1-phenylisoquinoline) iridium nanobelts via a recrystallization method

A relatively large amount of crystalline coiled nanobelts (>6 mg per trial) of a transition metal complex, tris(1-phenylisoquinoline) iridium(III) [Ir(piq)(3)], were prepared via a simple recrystallization procedure in ethyl acetate, which may offer the flexibility to process such nanobelt materials by spray coating for potential applications in functional devices.