1221237-81-5

Upstream product

• 57103-20-5 3,6-dibromo-9-phenyl-9H-carbazole 
• 74-88-4 methyl iodide 
• 86-74-8 9H-carbazole 
• 591-50-4 iodobenzene 
• 1150-62-5 N-phenylcarbazole 
• 1202362-88-6 3-methyl-9-phenyl-9H-carbazole 

Downstream Products

• 1221238-01-2 C₂₅H₁₈ClN 
• 1221237-01-9 C₄₆H₃₆N₂ 
• 1221237-21-3 C₆₁H₄₈N₂ 

Relevant academic research and scientific papers

Highly efficient blue thermally activated delayed fluorescence organic light emitting diodes based on tercarbazole donor and boron acceptor dyads

Two new blue TADF emitters, namely, 9′-(2,12-di-tert-butyl-5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracen-7-yl)-9,9′′-diphenyl-9H,9′H,9′′H-3,3′:6′,3′′-tercarbazole (3CzTB) and 9′-(5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracen-7-yl)-6,6′′-dimethyl-9,9′′-diphenyl-9H,9′H,9′′H-3,3′:6′,3′′-tercarbazole (M3CzB), for application in highly efficient organic light-emitting diodes are reported. These emitters consist of tercarbazole as donor and rigid oxygen bridged boron as acceptor units. Despite having the same donor and acceptor segments, an alkyl modification on the periphery of the donor and acceptor units altered their physicochemical properties and the electrochemical stability of the emitters. Blue TADF light-emitting devices fabricated with these emitters exhibited a maximum external quantum efficiency (EQE) and luminance of 30.7%, 18 160 cd m-2 and 29.1%, 11 690 cd m-2 for M3CzB and 3CzTB, respectively. The operational lifetime (LT50) of the stable blue TADF device fabricated with these emitters was 81 h and 60.5 h at 400 nits with the maximum EQE and CIE color coordinates of 14.4%, (0.13, 0.19) and 7.6%, (0.14, 0.10) for M3CzB and 3CzTB, respectively.

NOVEL COMPOUND AND ORGANIC ELECTRONIC DEVICE USING SAME

The present invention relates to a novel compound and an organic light emitting device using the compound, and the compound according to the present invention may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.