A New Entry to Purely Organic Thermally Activated Delayed Fluorescence Emitters Based on Pyridopyrazine‐Dihydrophenazasilines Donor‐Acceptor Dyad

A New Entry to Purely Organic Thermally Activated Delayed Fluorescence Emitters Based on Pyridopyrazine‐Dihydrophenazasilines Donor‐Acceptor Dyad

A new family of thermally activated delayed fluorescence (TADF) emitters based on a twisted donor‐acceptor (D−A) dyad scaffold comprising of dihydrophenazasiline (D) and pyrido[2,3‐b]pyrazine (A) has been developed, and their properties have been investigated. Time‐resolved spectroscopic analysis in...

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Published in:Asian journal of organic chemistry Vol. 11; no. 3
Main Authors: Goya, Tsuyoshi, Paola Zimmermann Crocomo, Hosono, Takumi, Minakata, Satoshi, de Sousa, Leonardo Evaristo, de Silva, Piotr, Data, Przemyslaw, Takeda, Youhei
Format: Journal Article
Language:English
Published: Weinheim Wiley Subscription Services, Inc 01-03-2022
Subjects:
Emitters
Fluorescence
Organic chemistry
Organic light emitting diodes
Quantum efficiency
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Abstract A new family of thermally activated delayed fluorescence (TADF) emitters based on a twisted donor‐acceptor (D−A) dyad scaffold comprising of dihydrophenazasiline (D) and pyrido[2,3‐b]pyrazine (A) has been developed, and their properties have been investigated. Time‐resolved spectroscopic analysis in matrices revealed the detailed photophysical properties of the D−A compounds. These D−A compounds serve as the emitter for organic light‐emitting diodes (OLEDs), showing a moderate external quantum efficiency (EQE) up to 9% in CBP matrix. Furthermore, theoretical calculations uncovered the excited states nature of the developed TADF emitters.
AbstractList A new family of thermally activated delayed fluorescence (TADF) emitters based on a twisted donor‐acceptor (D−A) dyad scaffold comprising of dihydrophenazasiline (D) and pyrido[2,3‐b]pyrazine (A) has been developed, and their properties have been investigated. Time‐resolved spectroscopic analysis in matrices revealed the detailed photophysical properties of the D−A compounds. These D−A compounds serve as the emitter for organic light‐emitting diodes (OLEDs), showing a moderate external quantum efficiency (EQE) up to 9% in CBP matrix. Furthermore, theoretical calculations uncovered the excited states nature of the developed TADF emitters.
Author Data, Przemyslaw
de Sousa, Leonardo Evaristo
Takeda, Youhei
de Silva, Piotr
Hosono, Takumi
Paola Zimmermann Crocomo
Minakata, Satoshi
Goya, Tsuyoshi
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  givenname: Takumi
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  fullname: Takeda, Youhei
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Copyright 2022. This article is published under http://creativecommons.org/licenses/by-nc/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.
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DOI 10.1002/ajoc.202100780
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Snippet A new family of thermally activated delayed fluorescence (TADF) emitters based on a twisted donor‐acceptor (D−A) dyad scaffold comprising of...
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SubjectTerms Emitters
Fluorescence
Organic chemistry
Organic light emitting diodes
Quantum efficiency
Title A New Entry to Purely Organic Thermally Activated Delayed Fluorescence Emitters Based on Pyridopyrazine‐Dihydrophenazasilines Donor‐Acceptor Dyad
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