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| 6–氨基异喹啉的荧光增强及在白光膜中的应用 |
| Fluorescence enhancement of 6-aminoisoquinoline and its application in white light film |
| 投稿时间：2023-03-20 |
| DOI：10.3969/j.issn.1005-5630.202303200070 |
| 中文关键词: 质子化 超分子 有机荧光薄膜 6–氨基异喹啉 环糊精 |
| 英文关键词:protonation supramolecule organic fluorescent film 6-aminoisoquinoline cyclodextrin |
| 基金项目:上海市自然科学基金(20ZR437400) |
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| 中文摘要: |
| 有机发光二极管（organic light-emitting diode，OLED）在新一代的照明、显示等领域有着广阔的应用前景。在OLED的制备中，蓝色荧光染料起着不可或缺的作用。使用苯磺酸（benzenesulfonic acid，BSA）将蓝色荧光染料6-氨基异喹啉（6-aminoisoquinoline，6-AIQ）质子化改性为6-AIQ-BSA，使其荧光量子效率从64.71%上升至85.84%。为制备高效的白光薄膜，利用桶状分子羟丙基-β-环糊精（hydroxypropyl-β-cyclodextrin，HP-β-CD）对6-AIQ-BSA 实施了超分子包覆，以降低高浓度下荧光猝灭现象。实验表明，将6-AIQ-BSA @ HP-β-CD与橙光染料DAST@ HP-β-CD以1.7∶1比例混合可以实现白光发射，其CIE色坐标为（0.332 4，0.328 4）。该混合物薄膜具有白光性好，轻量和柔软等特点，在柔性发光器件中有着广阔的应用潜力。 |
| 英文摘要: |
| Organic light-emitting diode (OLED) has important applications in the next generation of lighting, displays and related fields. Blue fluorescent dyes are essential for the fabrication of OLED. In this study, by protonating a blue fluorescent dye 6-aminoisoquinoline (6-AIQ) with benzenesulfonic acid (BSA), the fluorescence quantum yield was successfully increased from 64.71% to 85.84%. The 6-AIQ-BSA was further inserted into a barrel-shaped hydroxypropyl-β-cyclodextrin (HP-β-CD) molecule to form a supramolecular structure, which could reduce the fluorescence quenching at high concentrations. Experiments showed that white light emission could be achieved by mixing the 6-AIQ-BSA@HP-β-CD with orange light dye DAST@ HP-β-CD in a ratio of 1.7 to 1, and its CIE color coordinates were (0.332 4, 0.328 4). The prepared film has the characteristics of good white light emission, lightweight, and flexibility, which makes it has broad application potential in various light-emitting devices. |
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