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

Access to Document

10.1039/D1CC04972K

Manuscript-ChemComm_final
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
Accepted author manuscript, 749 KB

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 (\textasciitilde{}1 nm) EML showed a 2.6-fold higher external quantum efficiency (EQEmax) of 13.5\% with a luminance of 17,250 cd/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\textbackslash{}R1\textbackslash{}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).",

year = "2021",

month = dec,

day = "28",

doi = "10.1039/D1CC04972K",

language = "English",

volume = "2021",

pages = "13728--13731",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "100",

}

TY - JOUR

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

UR - https://www.scopus.com/pages/publications/85121657864

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

Abstract

Access to Document

Other files and links

Fingerprint

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

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

Abstract

Access to Document

Other files and links

Fingerprint

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