Thomas, K. R. Justin published the artcileLight-Emitting Carbazole Derivatives: Potential Electroluminescent Materials, Recommanded Product: 4-(3,6-Dibromo-9H-carbazol-9-yl)benzonitrile, the publication is Journal of the American Chemical Society (2001), 123(38), 9404-9411, database is CAplus and MEDLINE.
Stable carbazole derivatives that contain peripheral diarylamines at the 3- and 6-positions and an Et or aryl substituent at the 9-position of the carbazole moiety have been synthesized via palladium-catalyzed C-N bond formation. These new carbazole compounds (carbs) are amorphous with high glass transition temperatures (Tg, 120-194 °C) and high thermal decomposition temperatures (Td > 450 °C). The compounds are weakly to moderately luminescent in nature. The emission wavelength ranges from green to blue and is dependent on the substituent at the peripheral nitrogen atoms. Two types of light-emitting diodes were constructed from carb: (I) ITO/carb/TPBI/Mg:Ag and (II) ITO/carb/Alq3/Mg:Ag, where TPBI and Alq3 are 1,3,5-tris(N-phenylbenzimidazol-2-yl)benzene and tris(8-hydroxyquinoline) aluminum, resp. In type I devices, the carb functions as the hole-transporting as well as emitting material. In type II devices, either carb, or Alq3 is the light-emitting material. Several green light-emitting devices exhibit exceptional maximum brightness, and the phys. performance appears to be better than those of typical green light-emitting devices of the structure ITO/diamine/Alq3/Mg:Ag. The relation between the LUMO of the carb and the performance of the light-emitting diode is discussed.
Journal of the American Chemical Society published new progress about 373389-97-0. 373389-97-0 belongs to nitriles-buliding-blocks, auxiliary class OLED Materials,Red Fluorescence Dopants, name is 4-(3,6-Dibromo-9H-carbazol-9-yl)benzonitrile, and the molecular formula is C16H14O6, Recommanded Product: 4-(3,6-Dibromo-9H-carbazol-9-yl)benzonitrile.
Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts