Ultrathin non-doped thermally activated delayed fluorescence emitting layer for highly efficient OLEDs

We report highly efficient, ultrathin non-doped green and bluish-green organic light-emitting diodes (OLEDs) using a thermally activated delayed fluorescence (TADF) emitter. The green OLED with an ultrathin (~1 nm) EML showed a 2.6-fold higher external quantum efficiency (EQEmax) of 13.5% with a luminance of 17,250 cd/m2 than the conventional (30 nm) non-doped device.

Citation

Nanda , G P , Sk , B , Yadav , N , Rajamanickam , S , Deori , U , Mahashya , R , Zysman-Colman , E & Rajamalli , P 2021 , ' Ultrathin non-doped thermally activated delayed fluorescence emitting layer for highly efficient OLEDs ' , Chemical Communications , vol. In press . https://doi.org/10.1039/D1CC04972K

Publication

Chemical Communications

Status

Peer reviewed

DOI

https://doi.org/10.1039/D1CC04972K

ISSN

1359-7345

Type

Journal article

Rights

Copyright © 2021 The Author(s). This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final https://doi.org/10.1039/D1CC04972K

Description

The authors are grateful to Prof. Chien-Hong Cheng, National Tsing Hua University, Taiwan for providing facilities for OLED device fabrication and characterization. G.P.N. thanks Council of Scientific & Industrial Research (CSIR) India for the Junior Research Fellowship (JRF). E.Z-C. thanks the Engineering and Physical Sciences Research Council (EPSRC) EP/P010482/1 for support. E. Z.-C. is a Royal Society Leverhulme Trust Senior Research fellow (SRF\R1\201089). P. R. thanks the Indian Institute of Science (IISc) for generous financial support and the Science & Engineering Research Board (SERB), India, for the SERB-Power Grant (SPG) (Grant No: SPG/2020/000107). BS thank IISc for the C. V. Raman Fellowship under the Institute of Eminence (IoE).

Collections

University of St Andrews Research

URI

http://hdl.handle.net/10023/26477