Soft Materials and Soft Salts Based on Iridium Complexes

Over the past two decades, iridium complexes have been popular candidates for optoelectronic devices. To date the focus of most studies has been on complexes as isolated molecules, either in liquid or solid solution and processing of devices achieve by vacuum thermal evaporation or from solution without particular attention to the organization of molecules. In this chapter we review aspects of iridium complexes in condensed phases, which organization, in particular self-organization properties, is of interest for applications. Representative cases based on iridium complexes with liquid crystal, gel, micelles, Langmuir-Blodgett (LB) films, and soft salts properties are presented. These particular complexes are emerging as promising materials for applications within and beyond OLEDs.