Removing shortcomings of linear molecules to develop high efficiencies deep-blue organic electroluminescent materials

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

21 Scopus Citations
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Author(s)

  • Miao Chen
  • Shao-Fei Ni
  • Ying-Ying Peng
  • Chong Zhang
  • Qing-Xiao Tong
  • Feng Lu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)323-329
Journal / PublicationOrganic Electronics: physics, materials, applications
Volume38
Publication statusPublished - 1 Nov 2016

Abstract

By using molecular twisting and bulky side group substitution, we successfully develop two deep-blue emitters, BiPI-1 and BiPI-2. These two twisted linear molecules retain the excellent photophysical and electrical properties of planar analogue and remarkably supress redshifts in solid state emission. Especially, BiPI-1 showed deep-blue emission in both solution and solid phase, and high carrier mobilities with μh > 10−3 cm2 V−1 s−1 and μe > 10−5 cm2 V−1 s−1. Standard blue electroluminescence (color purity: (0.15, 0.08)) and high device efficiency (CE: 4.62 cd A−1, EQE: 6.18%) were observed in a non-doped OLED of BiPI-1.

Research Area(s)

  • Deep-blue, Linear molecule, Molecular twisting, Non-doped OLED

Citation Format(s)

Removing shortcomings of linear molecules to develop high efficiencies deep-blue organic electroluminescent materials. / Zhu, Ze-Lin; Chen, Miao; Chen, Wen-Cheng; Ni, Shao-Fei; Peng, Ying-Ying; Zhang, Chong; Tong, Qing-Xiao; Lu, Feng; Lee, Chun-Sing.

In: Organic Electronics: physics, materials, applications, Vol. 38, 01.11.2016, p. 323-329.

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