期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 9, 期 10, 页码 3391-3395出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tc00403d
关键词
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资金
- National Natural Science Foundation of China [22071184]
- Zhejiang Provincial Natural Science Foundation of China [LY20B020014]
A new doped system with pure phosphorescent emission was constructed, utilizing specific derivatives as guests and benzophenone as the host. The system has a phosphorescence quantum efficiency of up to 64% and allows for selective emission of green phosphorescence or cyan fluorescence by adjusting the excitation wavelength.
A new doped system with pure phosphorescent emission is constructed using four 1-(4-(diphenylamino)phenyl)-2-phenylethan-1-one derivatives containing halogen atoms as the guests and benzophenone as the host. That is, the doped system has only phosphorescence emission while almost no fluorescence emission and the phosphorescence quantum efficiency reaches up to 64%. Moreover, the ISC efficiency of excitons can be adjusted by changing the excitation wavelength, so the doped materials can selectively emit green phosphorescence or cyan fluorescence.
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