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

Gyana Prakash Nanda; Bahadur Sk; Nisha Yadav; Suresh Rajamanickam; Upasana Deori; Rahul Mahashaya; Eli Zysman-Colman; Pachaiyappan Rajamalli

doi:10.1039/D1CC04972K

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

Gyana Prakash Nanda,^a Bahadur Sk,

^a Nisha Yadav,

^a Suresh Rajamanickam,

^a Upasana Deori,

^a Rahul Mahashaya,

^a Eli Zysman-Colman

*^b and Pachaiyappan Rajamalli

*^a

Author affiliations

* Corresponding authors

^a Materials Research Centre, Indian Institute of Science, Bangalore-560012, Karnataka, India
E-mail: rajamalli@iisc.ac.in

^b Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, UK
E-mail: eli.zysman-colman@st-andrews.ac.uk

Abstract

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 (EQE_max) of 13.5% with a luminance of 17 250 cd m⁻² than the conventional (30 nm) non-doped device.

This article is part of the themed collection: ChemComm Milestones – First Independent Articles

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DOI: https://doi.org/10.1039/D1CC04972K
Article type: Communication
Submitted: 04 Ndz 2021
Accepted: 24 Huk 2021
First published: 24 Huk 2021

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Chem. Commun., 2021,57, 13728-13731

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

G. P. Nanda, B. Sk, N. Yadav, S. Rajamanickam, U. Deori, R. Mahashaya, E. Zysman-Colman and P. Rajamalli, Chem. Commun., 2021, 57, 13728 DOI: 10.1039/D1CC04972K

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Chemical Communications

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

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

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