1648588-66-2

Upstream product

• 1153-85-1 3-bromo-9-phenyl-9H-carbazole 
• 57102-42-8 N-(4-bromophenyl)carbazole 
• 86-74-8 9H-carbazole 
• 106-37-6 1.4-dibromobenzene 
• 638-02-8 2,5-DIMETHYLTHIOPHENE 
• 785051-54-9 9-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-9H-carbazole 
• 1648588-65-1 3-(4-bromo-2,5-dimethylthiophene-3-yl)-9-phenyl-9H-carbazole 

Relevant academic research and scientific papers

Synthesis of phenylcarbazole-thiophene-based structural isomers as unipolar host materials for blue PHOLEDs and their device performance

New high triplet-energy host materials, which are symmetrically or asymmetrically designed by using phenylcarbazole and thiophene moieties, were synthesized by Suzuki-Miyaura cross-coupling reactions and their device performances of blue phosphorescent organic light-emitting diodes were also investigated. The synthesized compounds showed a high triplet energy (>2.84 eV) and good thermal stability. Highly efficient blue PHOLEDs were obtained when employing the symmetric compounds having C2 symmetry as the host material and bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrpic) as the guest material. Their maximum external quantum efficiency of the device reached as high as 18.9% with blue color coordinate of (0.15, 0.35).