Multifunctional tris(triazolo)triazine-based emitter with dual-TADF, RTP, AIEE and AIDF properties

Marli Ferreira; Nícolas Oliveira Decarli; Aleksandra Nyga; Karol Erfurt; Jaijanarthanan Lingagouder; Leonardo Evaristo de Sousa; Laure de Thieulloy; Piotr de Silva; Przemyslaw Data

doi:10.1039/d4tc00606b

Multifunctional tris(triazolo)triazine-based emitter with dual-TADF, RTP, AIEE and AIDF properties

Marli Ferreira
, Nícolas Oliveira Decarli
, Aleksandra Nyga
, Karol Erfurt
, Jaijanarthanan Lingagouder
, Leonardo Evaristo de Sousa
, Laure de Thieulloy
, Piotr de Silva
, Przemyslaw Data

Silesian University of Technology
Lodz University of Technology
Technical University of Denmark

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

7 Citations (Scopus)

Abstract

Tremendous attention in recent years has been devoted to the design of multifunctional purely organic emitters owing to their diverse emissive mechanism and widespread applications in the luminescent field. Herein, we describe the synthesis and photophysical investigation of D₃A-type tris(triazolo)triazine (TTT) multifunctional emitters with unprecedented dual thermally activated delayed fluorescence (TADF), room-temperature phosphorescence (RTP), aggregation-induced emission enhancement (AIEE), and aggregation-induced delayed fluorescence (AIDF). We demonstrate that the presence of methyl substituents at different positions of the emitter offers the possibility to switch between RTP and TADF processes by choosing appropriate hosts and controlling the singlet-triplet energy gap (ΔE_ST). TTT-PTZ, in particular, is a very strong TADF emitter (DF/PF ratio 9.3) in Zeonex®, even with a ΔE_ST around 0.20 eV, displaying high external quantum efficiency (EQE) of up to 12.4% in solution-processed organic light-emitting diodes (OLEDs).

Original language	English
Pages (from-to)	13651-13664
Number of pages	14
Journal	Journal of Materials Chemistry C
Volume	12
Issue number	34
DOIs	https://doi.org/10.1039/d4tc00606b
Publication status	Published - 15 Jul 2024

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

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10.1039/d4tc00606b

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@article{36f46229bb3e454280ed0a53e53b1086,

title = "Multifunctional tris(triazolo)triazine-based emitter with dual-TADF, RTP, AIEE and AIDF properties",

abstract = "Tremendous attention in recent years has been devoted to the design of multifunctional purely organic emitters owing to their diverse emissive mechanism and widespread applications in the luminescent field. Herein, we describe the synthesis and photophysical investigation of D3A-type tris(triazolo)triazine (TTT) multifunctional emitters with unprecedented dual thermally activated delayed fluorescence (TADF), room-temperature phosphorescence (RTP), aggregation-induced emission enhancement (AIEE), and aggregation-induced delayed fluorescence (AIDF). We demonstrate that the presence of methyl substituents at different positions of the emitter offers the possibility to switch between RTP and TADF processes by choosing appropriate hosts and controlling the singlet-triplet energy gap (ΔEST). TTT-PTZ, in particular, is a very strong TADF emitter (DF/PF ratio 9.3) in Zeonex{\textregistered}, even with a ΔEST around 0.20 eV, displaying high external quantum efficiency (EQE) of up to 12.4\% in solution-processed organic light-emitting diodes (OLEDs).",

author = "Marli Ferreira and Decarli, \{N{\'i}colas Oliveira\} and Aleksandra Nyga and Karol Erfurt and Jaijanarthanan Lingagouder and \{de Sousa\}, \{Leonardo Evaristo\} and \{de Thieulloy\}, Laure and \{de Silva\}, Piotr and Przemyslaw Data",

note = "Publisher Copyright: {\textcopyright} 2024 The Royal Society of Chemistry.",

year = "2024",

month = jul,

day = "15",

doi = "10.1039/d4tc00606b",

language = "English",

volume = "12",

pages = "13651--13664",

journal = "Journal of Materials Chemistry C",

issn = "2050-7526",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Multifunctional tris(triazolo)triazine-based emitter with dual-TADF, RTP, AIEE and AIDF properties

AU - Ferreira, Marli

AU - Decarli, Nícolas Oliveira

AU - Nyga, Aleksandra

AU - Erfurt, Karol

AU - Lingagouder, Jaijanarthanan

AU - de Sousa, Leonardo Evaristo

AU - de Thieulloy, Laure

AU - de Silva, Piotr

AU - Data, Przemyslaw

PY - 2024/7/15

Y1 - 2024/7/15

N2 - Tremendous attention in recent years has been devoted to the design of multifunctional purely organic emitters owing to their diverse emissive mechanism and widespread applications in the luminescent field. Herein, we describe the synthesis and photophysical investigation of D3A-type tris(triazolo)triazine (TTT) multifunctional emitters with unprecedented dual thermally activated delayed fluorescence (TADF), room-temperature phosphorescence (RTP), aggregation-induced emission enhancement (AIEE), and aggregation-induced delayed fluorescence (AIDF). We demonstrate that the presence of methyl substituents at different positions of the emitter offers the possibility to switch between RTP and TADF processes by choosing appropriate hosts and controlling the singlet-triplet energy gap (ΔEST). TTT-PTZ, in particular, is a very strong TADF emitter (DF/PF ratio 9.3) in Zeonex®, even with a ΔEST around 0.20 eV, displaying high external quantum efficiency (EQE) of up to 12.4% in solution-processed organic light-emitting diodes (OLEDs).

AB - Tremendous attention in recent years has been devoted to the design of multifunctional purely organic emitters owing to their diverse emissive mechanism and widespread applications in the luminescent field. Herein, we describe the synthesis and photophysical investigation of D3A-type tris(triazolo)triazine (TTT) multifunctional emitters with unprecedented dual thermally activated delayed fluorescence (TADF), room-temperature phosphorescence (RTP), aggregation-induced emission enhancement (AIEE), and aggregation-induced delayed fluorescence (AIDF). We demonstrate that the presence of methyl substituents at different positions of the emitter offers the possibility to switch between RTP and TADF processes by choosing appropriate hosts and controlling the singlet-triplet energy gap (ΔEST). TTT-PTZ, in particular, is a very strong TADF emitter (DF/PF ratio 9.3) in Zeonex®, even with a ΔEST around 0.20 eV, displaying high external quantum efficiency (EQE) of up to 12.4% in solution-processed organic light-emitting diodes (OLEDs).

UR - https://www.scopus.com/pages/publications/85200555529

U2 - 10.1039/d4tc00606b

DO - 10.1039/d4tc00606b

M3 - Article

AN - SCOPUS:85200555529

SN - 2050-7526

VL - 12

SP - 13651

EP - 13664

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 34

ER -

Multifunctional tris(triazolo)triazine-based emitter with dual-TADF, RTP, AIEE and AIDF properties

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