Molecular design of thermally activated delayed fluorescent emitters for blue-shifted emission by methoxy substitution
Journal of Materials Chemistry C Pub Date: 2017-08-12 DOI: 10.1039/C7TC02859H
Abstract
The molecular design method of thermally activated delayed fluorescent emitters for blue-shifted emission was developed by modifying a phenyl linker using a methoxy substituent. One methoxy or two methoxy groups were introduced into 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 a short wavelength while preserving the external quantum efficiency of the pristine material without the methoxy substituent. A high external quantum efficiency of over 20% was obtained while blue-shifting the emission wavelength by 12 nm. However, the substitution of two methoxy groups decreased the quantum efficiency of the devices although the emission color was shifted to a short wavelength.
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Journal Name：Journal of Materials Chemistry C
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CAS no.: 89640-58-4
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