Jump to main content
Jump to site search

Issue 5, 2018
Previous Article Next Article

An efficient yellow thermally activated delayed fluorescence emitter with universal applications in both doped and non-doped organic light-emitting diodes

Author affiliations

Abstract

Thermally activated delayed fluorescence (TADF) emitters have aroused serious attention for their use in organic light-emitting diodes (OLEDs). However, TADF emitters providing both doped and non-doped OLEDs with high device performance are rare. In this work, we present a yellow TADF emitter (OPDPO) meeting the above requirements. The OPDPO-based doped OLEDs show a maximum external quantum efficiency (EQE) of 26.7%, which is amongst the highest ever reported for doped yellow TADF-based OLEDs. The EQE remains as high as 22.1% at a luminance of 1000 cd m−2. Meanwhile, the OPDPO-based non-doped OLEDs afford a maximum EQE of 16.6% at a high luminance of 3600 cd m−2, which is amongst the best performances of non-doped yellow TADF-based OLEDs. Moreover, simple and efficient white OLEDs are implemented by combining a blue conventional fluorescent emitter with either a doped or non-doped OPDPO emissive layer, confirming the universal applications of OPDPO in high-performance OLEDs.

Graphical abstract: An efficient yellow thermally activated delayed fluorescence emitter with universal applications in both doped and non-doped organic light-emitting diodes

Back to tab navigation

Supplementary files

Publication details

The article was received on 07 Feb 2018, accepted on 12 Mar 2018 and first published on 13 Mar 2018


Article type: Research Article
DOI: 10.1039/C8QM00064F
Citation: Mater. Chem. Front., 2018,2, 1017-1023
  •   Request permissions

    An efficient yellow thermally activated delayed fluorescence emitter with universal applications in both doped and non-doped organic light-emitting diodes

    X. Chen, Z. Yang, Z. Xie, J. Zhao, Z. Yang, Y. Zhang, Matthew. P. Aldred and Z. Chi, Mater. Chem. Front., 2018, 2, 1017
    DOI: 10.1039/C8QM00064F

Search articles by author

Spotlight

Advertisements