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Molecular design of thermally activated delayed fluorescent emitters for blue-shifted emission color by methoxy substitution

Abstract

Molecular design method of thermally activated delayed fluorescent emitters for blue-shifted emission color was developed by modifying a phenyl linker using a methoxy substituent. One methoxy or two methoxy groups were introduced in the phenyl linker connecting a diphenyltriazine acceptor and a dimethylacridine donor to manage the emission spectrum. Substitution of one methoxy group shifted the emission color to short wavelength while preserving the external quantum efficiency of the pristine material without the methoxy substituent. A high external quantum efficiency over 20% was obtained while blue-shifting the emission wavelength by 12 nm. However, substitution of two methoxy groups decreased quantum efficiency of the devices although the emission color was shifted to short wavelength.

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Publication details

The article was received on 26 Jun 2017, accepted on 11 Aug 2017 and first published on 12 Aug 2017


Article type: Paper
DOI: 10.1039/C7TC02859H
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Molecular design of thermally activated delayed fluorescent emitters for blue-shifted emission color by methoxy substitution

    C. S. Oh, S. H. Han and J. Y. Lee, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC02859H

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