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 Mahashya; Eli Zysman-Colman; Pachaiyappan Rajamalli

doi:10.1039/D1CC04972K

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 Mahashya, Eli Zysman-Colman^*, Pachaiyappan Rajamalli^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	13728-13731
Number of pages	4
Journal	Chemical Communications
Volume	2021
Issue number	100
Early online date	24 Nov 2021
DOIs	https://doi.org/10.1039/D1CC04972K
Publication status	Published - 28 Dec 2021

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Accepted author manuscript, 749 KB

Eli Zysman-colman SRF: New Frontiers in Multi-Resonance Thermally Activated Delayed Fluorescence Emitter Design for Organic Light-Emitting Diodes
Zysman-Colman, E. (PI)
The Royal Society
18/01/21 → 18/03/22
Project: Fellowship
TADF Emitters for OLEDs - Eli Zysman: TADF Emitters for OLEDs
Zysman-Colman, E. (PI)
EPSRC
1/03/17 → 31/03/21
Project: Standard

Cite this

@article{2da528b2aa6f4e169e157cdf6af6b501,

title = "Ultrathin non-doped thermally activated delayed fluorescence emitting layer for highly efficient OLEDs",

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 (EQEmax) of 13.5% with a luminance of 17,250cd/m-2 than the conventional (30 nm) non-doped device.",

author = "Nanda, {Gyana Prakash} and Bahadur Sk and Nisha Yadav and Suresh Rajamanickam and Upasana Deori and Rahul Mahashya and Eli Zysman-Colman and Pachaiyappan Rajamalli",

note = "Funding: 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).",

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doi = "10.1039/D1CC04972K",

language = "English",

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T1 - Ultrathin non-doped thermally activated delayed fluorescence emitting layer for highly efficient OLEDs

AU - Nanda, Gyana Prakash

AU - Sk, Bahadur

AU - Yadav, Nisha

AU - Rajamanickam, Suresh

AU - Deori, Upasana

AU - Mahashya, Rahul

AU - Zysman-Colman, Eli

AU - Rajamalli, Pachaiyappan

N1 - Funding: 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).

PY - 2021/12/28

Y1 - 2021/12/28

N2 - 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 17,250cd/m-2 than the conventional (30 nm) non-doped device.

AB - 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 17,250cd/m-2 than the conventional (30 nm) non-doped device.

U2 - 10.1039/D1CC04972K

DO - 10.1039/D1CC04972K

M3 - Article

SN - 1359-7345

VL - 2021

SP - 13728

EP - 13731

JO - Chemical Communications

JF - Chemical Communications

IS - 100

ER -

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

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Projects

Eli Zysman-colman SRF: New Frontiers in Multi-Resonance Thermally Activated Delayed Fluorescence Emitter Design for Organic Light-Emitting Diodes

TADF Emitters for OLEDs - Eli Zysman: TADF Emitters for OLEDs

Cite this