New 1H-pyrazolo[3,4-b]quinoxaline derivatives as sharp green-emitting dopants for highly efficient electroluminescent devices

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Pengfei Wang
  • Zhiyuan Xie
  • Oiyan Wong
  • Ningbew Wong
  • Liangsun Hung
  • Shuittong Lee

Detail(s)

Original languageEnglish
Pages (from-to)1404-1405
Journal / PublicationChemical Communications
Issue number13
Publication statusPublished - 2002

Abstract

Several new 1H-pyrazolo[3,4-b]quinoxaline derivatives with N,N-dialkylamino as the electron donating group were prepared; their photoluminescence in solution and electroluminescence have been investigated; they show emission at about 520-540 nm with a fluorescence quantum yield close to unity in solution; devices fabricated by using these compounds as dopants show green emission with efficiencies of 7.5-9.7 cd A-1 and a narrow bandwidth of 65-70 nm peaking at 530-545 nm.

Citation Format(s)

New 1H-pyrazolo[3,4-b]quinoxaline derivatives as sharp green-emitting dopants for highly efficient electroluminescent devices. / Wang, Pengfei; Xie, Zhiyuan; Wong, Oiyan; Lee, Chun-Sing; Wong, Ningbew; Hung, Liangsun; Lee, Shuittong.

In: Chemical Communications, No. 13, 2002, p. 1404-1405.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review