Effects of Electron Transport Material on Blue Organic Light-Emitting Diode with Fluorescent Dopant of BCzVBi Academic Article uri icon

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abstract

  • High efficiency blue organic light emitting diodes (OLEDs), based on 2-me-thyl-9,10-di(2-naphthyl) anthracene (MADN) doped with 4,4'-bis(9-ethyl-3-carbazovinylene)-1,1'-biphenyl (BCzVBi), were fabricated using two different electron transport layers (ETLs) of tris(8-hydroxyquinolino)-aluminum (Alq3) and 4,7-di-phenyl-1,10-phenanthroline (Bphen). Bphen ETL layers favored the efficient hole-electron recombination in the emissive layer of the BCzVBi-doped blue OLEDs, leading to high luminous efficiency and quantum efficiency of 8.34 cd/A at 100 mA/cm2 and 5.73% at 100 cd/m2, respectively. Maximum luminance of blue OLED with Bphen ETL and Alq3 ETL were 10670 cd/m2, and CIExy coordinates of blue OLEDs were (0.180, 0279) and (0.155, 0.212) at 100 cd/m2.

authors

  • Meng, Mei
  • Song, Wook
  • Kim, You-Hyun
  • Lee, Sang-Youn
  • Jhun, Chul-Gyu
  • Zhu, Fu Rong
  • Ryu, Dae Hyun
  • Kim, Woo Young

publication date

  • January 1, 2013