Synthesis and Characterization of Carbazole Dendrimers as Solution-Processed High<i>T</i><sub>g</sub>Amorphous Hole-Transporting Materials for Electroluminescent Devices
efficient and facilesynthesis of up to 4th generation carbazole dendrons by using a mild Ullmann coupling reaction. The dendrimers, namely GnC (n = 1–4), are thermally stable amorphous materials with high glass transition temperatures (Tg) up to 347 °C and exhibit chemically stable redox properties. The compounds show great potential to work as solution-processed hole-transportingmaterials for electroluminescent