1345827-41-9Relevant academic research and scientific papers
Dibenzothiophene derivatives as host materials for high efficiency in deep blue phosphorescent organic light emitting diodes
Jeong, Sook Hee,Lee, Jun Yeob
, p. 14604 - 14609 (2012/02/02)
Various dibenzothiophene derivatives were synthesized as high triplet energy host materials for deep blue phosphorescent organic light-emitting diodes (PHOLEDs) and their device performances were investigated. Dibenzothiophene host materials with a hole transport type carbazole and electron transport type phosphine oxide moieties showed high quantum efficiency and low driving voltage due to balanced charge injection and transport. A high quantum efficiency of 20.2% and only 10% reduction of quantum efficiency at 1000 cd m-2 were demonstrated from the deep blue PHOLEDs with the dibenzothiophene based high triplet energy host materials. The Royal Society of Chemistry.
