Efficient and phosphorescent Ir(III) complexes are commonly applied in various light-emitting devices, i.e. in organic light-emitting devices (OLEDs) used as displays or as light bulbs, but they are also suitable for sensor applications. Especially in case of highly efficient multilayer OLED devices, the processing of the layers requires great effort and is therefore costly, in particular when evaporation techniques are used. Semiconducting copolymers that contain phosphorescent Ir(III) complexes as emitters, can be solution processed and this deposition technique is therefore supposed to be much more cost-effective, but presuppose that the deposition surface is insoluble in the solvent of the subsequent copolymer layer. Recently, inkjet printing of copolymers received great attention as a facile, low-cost processing technique. Synthesizing well-defined alternating metallo-copolymers allowed solution processed layers using inkjet printing from toluene/o-dichlorbenzene solutions.

Phosphorescent metallo-copolymers for inkjet printing

245th National Meeting (2013)

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