Red-Emitting Delayed Fluorescence and Room Temperature Phosphorescence from Core-Substituted Naphthalene Diimides
Red-Emitting Delayed Fluorescence and Room Temperature Phosphorescence from Core-Substituted Naphthalene Diimides
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DOI：
10.1002/chem.201904651
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发表时间：
2019-11-15
影响因子：
4.3
通讯作者：
George, Subi J.
中科院分区：
文献类型：
--
作者：
Kuila, Suman;Ghorai, Anaranya;George, Subi J.
通过延迟荧光和室温磷光揭示了核心取代的萘二酰亚胺（cNDI）衍生物中前所未有的环境三重态介导的发射。咔唑核取代的cNDIs，与供体-受体的设计，显示深红色的三重态发射在溶液可加工的薄膜具有高量子产率。这项研究，详细的理论计算和时间分辨的发射实验，使新的设计见解的cNDIs的三重态收获;一个重要的家庭的分子，否则，已被广泛研究其n型电子特性和可调谐的单线态荧光。
Unprecedented ambient triplet-mediated emission in core-substituted naphthalene diimide (cNDI) derivatives is unveiled via delayed fluorescence and room temperature phosphorescence. Carbazole core-substituted cNDIs, with a donor-acceptor design, showed deep-red triplet emission in solution processable films with high quantum yield. This study, with detailed theoretical calculations and time-resolved emission experiments, enables new design insights into the triplet harvesting of cNDIs; an important family of molecules which has been, otherwise, extensively been investigated for its n-type electronic character and tunable singlet fluorescence.