Phosphorescence from a pure organic fluorene derivative in solution at room temperature
Jinjia XuOrganic Materials Group, Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan. [email protected]Atsuro TakaiOrganic Materials Group, Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki, JapanYuka KobayashiOrganic Materials Group, Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki, JapanMasayuki TakeuchiDepartment of Materials Science and Engineering, Graduate School of Pure and Applied Science, University of Tsukuba, 1-1-1, Tennoudai, Tsukuba 305-8571, Japan
2013en
ABI
Аннотация
A fluorene derivative having both bromo and formyl groups exhibited bright phosphorescence emission in common organic solvents at room temperature. The absolute phosphorescence quantum yield reached 5.9% in chloroform at 298 K. When the fluorene derivative was incorporated into a poly(methyl methacrylate) film, the phosphorescence emission was similarly observed even under air at room temperature for over five days.
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