Cover Feature: A Novel Sterically Bulky Hole Transporter to Remarkably Improve the Lifetime of Thermally Activated Delayed Fluorescent OLEDs at High Brightness (Chem. Eur. J. 18/2018). Issue 18 (5th February 2018)

• Record Type: Journal Article
• Authors: Kamata, Takahiro; Sasabe, Hisahiro; Igarashi, Masahiro; Kido, Junji
• Is Part Of: Chemistry. Volume 24:Issue 18(2018)
• Page Start: 4470
• Page End: 4470
• Publication Date: 2018-02-05
• Subjects: fluorescence -- hole transporter -- OLEDs -- thermally activated delayed fluorescence; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201800133
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract : A hexaphenylbenzene derivative hole‐transporter significantly enhances the lifetime of organic light‐emitting devices (OLEDs) based on thermally activated delayed fluorescence (TADF) at high brightness. A green TADF OLED simultaneously achieves a high external quantum efficiency of over 20 %, a high power efficiency of 54 lm W −1, and operation lifetime at 50 % of approximately 10 000 h at 1000 nit. This result promises a bright future for TADF OLED. More information can be found in the Full Paper by H. Sasabe, J. Kido et al. on page 4590 .