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Benzoate-based thermally activated delayed fluorescence materials.

ABSTRACT: Compounds PTZ-MBZ (methyl 3-(10H-phenothiazin-10-yl)benzoate) and DMAC-MBZ (methyl 3-(9,9-dimethylacridin-10(9H)-yl)benzoate) were conveniently synthesized, and they exhibited TADF properties with lifetimes of 0.80 and 2.17 μs, respectively. The spatially separated highest occupied molecular orbital and lowest unoccupied molecular orbital resulted in a very small singlet-triplet energy gap of 0.0152 eV and 0.0640 eV, respectively. Thermally activated delayed fluorescence materials with short lifetime could be used as promising luminescent materials for organic light-emitting diodes.

SUBMITTER: Zhang L

PROVIDER: S-EPMC10346356 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature

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Benzoate-based thermally activated delayed fluorescence materials.

Zhang Liang L Zhu Wenjing W Gao Kangkang K Wu Yun Y Lu Yani Y Shuai Chao C Zhang Penghui P Li Huicheng H Chen Chuan-Feng CF

RSC advances 20230714 31

Compounds PTZ-MBZ (methyl 3-(10<i>H</i>-phenothiazin-10-yl)benzoate) and DMAC-MBZ (methyl 3-(9,9-dimethylacridin-10(9<i>H</i>)-yl)benzoate) were conveniently synthesized, and they exhibited TADF properties with lifetimes of 0.80 and 2.17 μs, respectively. The spatially separated highest occupied molecular orbital and lowest unoccupied molecular orbital resulted in a very small singlet-triplet energy gap of 0.0152 eV and 0.0640 eV, respectively. Thermally activated delayed fluorescence materials ...[more]

PMID: 37456544

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