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Excitation-light-induced phosphorescent color changes of β-cyclodextrin inclusion complexes

机译：激发光诱导β-环糊精包合物的磷光颜色变化

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摘要

Color tuning of organic materials is attractive field for both fundamental research and practical application. We report herein two new supramolecular materials based on β-cyclodextrin inclusion complex samples with partially included organic guests, which emit dark-blue and near-white phosphorescence (excitation at 365 nm), and exhibit higher phosphorescent quantum yields (9.2-12.4%). However, purely organic molecules themselves emit green-yellow or blue phosphorescence, and possess low phosphorescent quantum yields (1.4-3.5%). The inclusion complex samples with partially included organic guests also exhibit phosphorescent color tunability which can emit dark-blue, blue, near-white or green light, when stimulated with different excitation lights. Such excitation-light-induced supramolecular phosphorescent materials are promising candidates for potential applications in the organic electronics and dynamically photofunctional materials.
机译：有机材料的颜色调节对于基础研究和实际应用都是有吸引力的领域。我们在此报告两种基于β-环糊精包合复合物样品的新的超分子材料，其中包括部分有机客体，它们发出深蓝色和近白色的磷光（在365 nm处激发），并显示出更高的磷光量子产率（9.2-12.4％） 。但是，纯有机分子本身会发出绿黄色或蓝色磷光，并具有较低的磷光量子产率（1.4-3.5％）。含有部分有机物的夹杂物样品也显示出磷光色的可调谐性，当用不同的激发光激发时，可发出深蓝色，蓝色，近白色或绿色的光。这种激发光诱导的超分子磷光材料是有机电子和动态光功能材料中潜在应用的有希望的候选者。

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