RSC Advances published new progress about 2622-67-5. 2622-67-5 belongs to imidazoles-derivatives, auxiliary class Benzimidazole,Benzene,Benzimidazole, name is 1,2-Diphenyl-1H-benzo[d]imidazole, and the molecular formula is C5H7NO, Formula: C19H14N2.
Wen, Li-Li published the artcileLow efficiency roll-off and high performance OLEDs employing alkyl group modified iridium(III) complexes as emitters, Formula: C19H14N2, the publication is RSC Advances (2016), 6(112), 111556-111563, database is CAplus.
Significant efficiency roll-off of phosphorescent organic light-emitting diodes (PHOLEDs) is a long-standing issue that limits their wider application. To address this problem, four iridium(III) complexes modified by Me or tert-Bu groups were designed and synthesized, denoted as Me-Ir-PI, tBu-Ir-PI, Me-Ir-PB, and tBu-Ir-PB. Their photophys., electrochem., and electroluminescent properties were studied in detail. The electroluminescent performances of devices based on tBu-Ir-PI and tBu-Ir-PB were better than those based on Me-Ir-PI and Me-Ir-PB. The best performance was achieved by the doped device employing tBu-Ir-PI as the emitter with maximum current efficiency of 42.0 cd A-1 and maximum power efficiency of 27.0 lm W-1. Even at a practical brightness of 1000 cd m-2, the current efficiency and power efficiency remained as high as 39.2 cd A-1 and 22.3 lm W-1. Notably, all doped devices exhibited low efficiency roll-off, especially for device incorporation of tBu-Ir-PB as the guest emitter, which had extremely low roll-off of 0.9%. Meanwhile, non-doped devices based on these iridium(III) complexes also displayed good EL performances.
RSC Advances published new progress about 2622-67-5. 2622-67-5 belongs to imidazoles-derivatives, auxiliary class Benzimidazole,Benzene,Benzimidazole, name is 1,2-Diphenyl-1H-benzo[d]imidazole, and the molecular formula is C5H7NO, Formula: C19H14N2.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem