| Abstract: | Combination of spin‐coating and crosslinking allows low‐cost fabrication of large area displays with multiple layers by simple solution processing. For this purpose, a series of novel crosslinkable polymers containing hole‐transporting triarylamine units in the main chain were synthesized via palladium‐catalyzed C—N‐coupling reaction. Additionally, they contain varying amounts of polymerizable oxetane groups as side chains. The polymers were photo‐crosslinked to yield absolutely insoluble networks. Thin films were used as hole‐transport layer in two‐layer blue light‐emitting diodes. |
