3D Triptycene-Fused Acridine Electron Donor Enables High-Efficiency Nondoped Thermally Activated Delayed Fluorescent OLEDs

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

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Author(s)

  • Qun Zhan
  • Taian Huang
  • Changjiang Zhou
  • Ziyang Xie
  • Yang Zou
  • Chuluo Yang

Detail(s)

Original languageEnglish
Article number2100273
Journal / PublicationAdvanced Optical Materials
Volume9
Issue number16
Online published2 Jun 2021
Publication statusPublished - 18 Aug 2021

Abstract

Organic light-emitting diodes (OLEDs) with simple nondoped device structure are extremely attractive for real applications since excitons can be utilized without considering the possible charge trapping and morphology issues in the host–dopant systems. Emitters with suppressed concentration annihilation capability are essential for nondoped devices. Herein, two thermally activated delayed fluorescence (TADF) emitters based on a novel 3D electron donor, namely, TDMAC, are constructed. The TDMAC donor consists of a conventional donor with fused triptycene scaffold. Benefitting from the unique rigid and bulky triptycene moiety, these TADF emitters exhibit excellent thermal, morphological, and photophysical properties. Consequently, highly efficient OLEDs with external quantum efficiencies up to 24.2% and 23% are realized for doped and nondoped devices, respectively.

Research Area(s)

  • fluorescence, nondoped devices, organic light-emitting diodes, TADF emitters, thermally activated delayed fluorescence, triptycene

Citation Format(s)

3D Triptycene-Fused Acridine Electron Donor Enables High-Efficiency Nondoped Thermally Activated Delayed Fluorescent OLEDs. / Zhan, Qun; Cao, Chen; Huang, Taian; Zhou, Changjiang; Xie, Ziyang; Zou, Yang; Lee, Chun-Sing; Yang, Chuluo.

In: Advanced Optical Materials, Vol. 9, No. 16, 2100273, 18.08.2021.

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