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- W4317772746 endingPage "113505" @default.
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- W4317772746 abstract "Given the great effect of red dyes with high color purity on ultrahigh-definition displays, exploring new red fluorophores remains urgent. In this work, two novel boron dipyrromethene derivatives (BODIPYs), named o-OMB and p-OMB, were designed and synthesized by adjusting the substitution position of methoxy group. The introduction of tert-butylbenzene units increases steric hindrance and adjacent distance between the host and guest to inhibit adverse Dexter energy transfer. Regioisomerization of methoxy group has a certain impact on photophysical properties, including the distribution of frontier molecular orbitals and recombination energy. The recombination energy of p-OMB is much smaller than that of o-OMB, and the Eg of the former is 1.94 eV less than that of the latter 2.02 eV. Compared with o-OMB, p-OMB with para-substituent has narrower emission spectrum with a FWHM of 37 nm and red-shifted emission wavelength of 634 nm. The solution-processed based-p-OMB OLEDs show a maximum EQE of 1.3% and standard red emission with CIE coordinates of (0.67, 0.33) when using PhCz-4CzTPN as a sensitizer." @default.
- W4317772746 created "2023-01-24" @default.
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- W4317772746 date "2023-02-01" @default.
- W4317772746 modified "2023-10-16" @default.
- W4317772746 title "Isomer engineering to adjusting full width at half maximum and emission wavelength for efficient solution-processed red OLEDs" @default.
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- W4317772746 doi "https://doi.org/10.1016/j.optmat.2023.113505" @default.
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