An X-shaped solution-processible oligomer having an anthracene unit as a core: A new organic light-emitting material with high thermostability and efficiency

A new X-shaped solution-processible oligomer with a glass transition temperature of higher than 200 °C based on an anthracene derivative was prepared, and it showed good hole-transporting ability in organic light-emitting diodes (OLED). Such oligomer was also employed as the emitting layer to give the devices showing blue emission.