Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs

Subeesh Madayanad Suresh; Le Zhang; Tomas Matulaitis; David Hall; Changfeng Si; Gaetano Ricci; Alexandra M.Z. Slawin; Stuart Warriner; David Beljonne; Yoann Olivier; Ifor D.W. Samuel; Eli Zysman-Colman

doi:10.1002/adma.202300997

Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs

Subeesh Madayanad Suresh, Le Zhang, Tomas Matulaitis, David Hall, Changfeng Si, Gaetano Ricci, Alexandra M.Z. Slawin, Stuart Warriner, David Beljonne, Yoann Olivier, Ifor D.W. Samuel, Eli Zysman-Colman

Namur Institute of Structured Matter

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

Abstract

Two multiresonant thermally activated delayed fluorescence (MR-TADF) emitters are presented and it is shown how further borylation of a deep-blue MR-TADF emitter, DIDOBNA-N, both blueshifts and narrows the emission producing a new near-UV MR-TADF emitter, MesB-DIDOBNA-N, are shown. DIDOBNA-N emits bright blue light (Φ_PL = 444 nm, FWHM = 64 nm, Φ_PL = 81%, τ_d = 23 ms, 1.5 wt% in TSPO1). The deep-blue organic light-emitting diode (OLED) based on this twisted MR-TADF compound shows a very high maximum external quantum efficiency (EQE_max) of 15.3% for a device with CIE_y of 0.073. The fused planar MR-TADF emitter, MesB-DIDOBNA-N shows efficient and narrowband near-UV emission (λ_PL = 402 nm, FWHM = 19 nm, Φ_PL = 74.7%, τ_d = 133 ms, 1.5 wt% in TSPO1). The best OLED with MesB-DIDOBNA-N, doped in a co-host, shows the highest efficiency reported for a near-UV OLED at 16.2%. With a CIE_y coordinate of 0.049, this device also shows the bluest EL reported for a MR-TADF OLED to date.

Original language	English
Article number	2300997
Journal	Advanced materials
Volume	35
Issue number	33
DOIs	https://doi.org/10.1002/adma.202300997
Publication status	Published - 17 Aug 2023

Keywords

boron
deep-blue emitters
multiresonant thermally activated delayed fluorescence (MR-TADF)
near-UV emitters
organic light-emitting diodes (OLEDs)

Access to Document

10.1002/adma.202300997

Cite this

Suresh, S. M., Zhang, L., Matulaitis, T., Hall, D., Si, C., Ricci, G., Slawin, A. M. Z., Warriner, S., Beljonne, D., Olivier, Y., Samuel, I. D. W., & Zysman-Colman, E. (2023). Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs. Advanced materials, 35(33), Article 2300997. https://doi.org/10.1002/adma.202300997

@article{29f4be2aa4db49e09e0d9c64830696eb,

title = "Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs",

abstract = "Two multiresonant thermally activated delayed fluorescence (MR-TADF) emitters are presented and it is shown how further borylation of a deep-blue MR-TADF emitter, DIDOBNA-N, both blueshifts and narrows the emission producing a new near-UV MR-TADF emitter, MesB-DIDOBNA-N, are shown. DIDOBNA-N emits bright blue light (ΦPL = 444 nm, FWHM = 64 nm, ΦPL = 81%, τd = 23 ms, 1.5 wt% in TSPO1). The deep-blue organic light-emitting diode (OLED) based on this twisted MR-TADF compound shows a very high maximum external quantum efficiency (EQEmax) of 15.3% for a device with CIEy of 0.073. The fused planar MR-TADF emitter, MesB-DIDOBNA-N shows efficient and narrowband near-UV emission (λPL = 402 nm, FWHM = 19 nm, ΦPL = 74.7%, τd = 133 ms, 1.5 wt% in TSPO1). The best OLED with MesB-DIDOBNA-N, doped in a co-host, shows the highest efficiency reported for a near-UV OLED at 16.2%. With a CIEy coordinate of 0.049, this device also shows the bluest EL reported for a MR-TADF OLED to date.",

keywords = "boron, deep-blue emitters, multiresonant thermally activated delayed fluorescence (MR-TADF), near-UV emitters, organic light-emitting diodes (OLEDs)",

author = "Suresh, {Subeesh Madayanad} and Le Zhang and Tomas Matulaitis and David Hall and Changfeng Si and Gaetano Ricci and Slawin, {Alexandra M.Z.} and Stuart Warriner and David Beljonne and Yoann Olivier and Samuel, {Ifor D.W.} and Eli Zysman-Colman",

note = "Publisher Copyright: {\textcopyright} 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.",

year = "2023",

month = aug,

day = "17",

doi = "10.1002/adma.202300997",

language = "English",

volume = "35",

journal = "Advanced materials",

issn = "0935-9648",

publisher = "Wiley-Blackwell",

number = "33",

}

Suresh, SM, Zhang, L, Matulaitis, T, Hall, D, Si, C, Ricci, G, Slawin, AMZ, Warriner, S, Beljonne, D, Olivier, Y, Samuel, IDW & Zysman-Colman, E 2023, 'Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs', Advanced materials, vol. 35, no. 33, 2300997. https://doi.org/10.1002/adma.202300997

TY - JOUR

T1 - Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs

AU - Suresh, Subeesh Madayanad

AU - Zhang, Le

AU - Matulaitis, Tomas

AU - Hall, David

AU - Si, Changfeng

AU - Ricci, Gaetano

AU - Slawin, Alexandra M.Z.

AU - Warriner, Stuart

AU - Beljonne, David

AU - Olivier, Yoann

AU - Samuel, Ifor D.W.

AU - Zysman-Colman, Eli

PY - 2023/8/17

Y1 - 2023/8/17

N2 - Two multiresonant thermally activated delayed fluorescence (MR-TADF) emitters are presented and it is shown how further borylation of a deep-blue MR-TADF emitter, DIDOBNA-N, both blueshifts and narrows the emission producing a new near-UV MR-TADF emitter, MesB-DIDOBNA-N, are shown. DIDOBNA-N emits bright blue light (ΦPL = 444 nm, FWHM = 64 nm, ΦPL = 81%, τd = 23 ms, 1.5 wt% in TSPO1). The deep-blue organic light-emitting diode (OLED) based on this twisted MR-TADF compound shows a very high maximum external quantum efficiency (EQEmax) of 15.3% for a device with CIEy of 0.073. The fused planar MR-TADF emitter, MesB-DIDOBNA-N shows efficient and narrowband near-UV emission (λPL = 402 nm, FWHM = 19 nm, ΦPL = 74.7%, τd = 133 ms, 1.5 wt% in TSPO1). The best OLED with MesB-DIDOBNA-N, doped in a co-host, shows the highest efficiency reported for a near-UV OLED at 16.2%. With a CIEy coordinate of 0.049, this device also shows the bluest EL reported for a MR-TADF OLED to date.

AB - Two multiresonant thermally activated delayed fluorescence (MR-TADF) emitters are presented and it is shown how further borylation of a deep-blue MR-TADF emitter, DIDOBNA-N, both blueshifts and narrows the emission producing a new near-UV MR-TADF emitter, MesB-DIDOBNA-N, are shown. DIDOBNA-N emits bright blue light (ΦPL = 444 nm, FWHM = 64 nm, ΦPL = 81%, τd = 23 ms, 1.5 wt% in TSPO1). The deep-blue organic light-emitting diode (OLED) based on this twisted MR-TADF compound shows a very high maximum external quantum efficiency (EQEmax) of 15.3% for a device with CIEy of 0.073. The fused planar MR-TADF emitter, MesB-DIDOBNA-N shows efficient and narrowband near-UV emission (λPL = 402 nm, FWHM = 19 nm, ΦPL = 74.7%, τd = 133 ms, 1.5 wt% in TSPO1). The best OLED with MesB-DIDOBNA-N, doped in a co-host, shows the highest efficiency reported for a near-UV OLED at 16.2%. With a CIEy coordinate of 0.049, this device also shows the bluest EL reported for a MR-TADF OLED to date.

KW - boron

KW - deep-blue emitters

KW - multiresonant thermally activated delayed fluorescence (MR-TADF)

KW - near-UV emitters

KW - organic light-emitting diodes (OLEDs)

UR - http://www.scopus.com/inward/record.url?scp=85164128890&partnerID=8YFLogxK

U2 - 10.1002/adma.202300997

DO - 10.1002/adma.202300997

M3 - Article

C2 - 37140188

AN - SCOPUS:85164128890

SN - 0935-9648

VL - 35

JO - Advanced materials

JF - Advanced materials

IS - 33

M1 - 2300997

ER -

Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Equipment renewal for the Consortium des Equipements de Calcul Intensif (CECI)

IMAGINE: Influence of MAGgnetic field effects on spIN mixing in piconjugated organic materials for light-Emitting applications: An atomistic multiscale modeling approach

High Performance Computing Technology Platform

Cite this

Judicious Heteroatom Doping Produces High-Performance Deep-Blue/Near-UV Multiresonant Thermally Activated Delayed Fluorescence OLEDs

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Equipment renewal for the Consortium des Equipements de Calcul Intensif (CECI)

IMAGINE: Influence of MAGgnetic field effects on spIN mixing in piconjugated organic materials for light-Emitting applications: An atomistic multiscale modeling approach

Equipment

High Performance Computing Technology Platform

Cite this