...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Crystal growth & design >Enhancing Organic Phosphorescence by Manipulating Heavy-Atom Interaction
【24h】

Enhancing Organic Phosphorescence by Manipulating Heavy-Atom Interaction

机译：通过操纵重原子相互作用增强有机磷光

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Achieving highly efficient phosphorescence in metal-free materials under ambient conditions remains a major challenge in organic optoelectronics. Herein, we report a concise approach to obtaining pure organic phosphorescence with high quantum efficiency of up to 21.9% and millisecond scale lifetime by manipulating heavy-atom interaction based on a class of dibromobenzene derivatives in the solid state under ambient conditions. By comparing two pairs of the organic compounds designed, the one with two more bromine atoms on the alky terminals (PhBr2C6Br2/PhBr2C8Br2) showed higher luminescence efficiency than the other one (PhBr2C6/PhBr2C8). From the single-crystal analysis, it was proposed that the enhancement of phosphorescence resulted from increased intermolecular heavy-atom interaction in the organic crystals. Furthermore, a temperature sensor was demonstrated by using a model probe of this kind of organic phosphorescent crystals. This work not only provides a concise alternative to enhance phosphorescence in metal-free materials but also extends the scope of pure organic phosphorescent materials with high luminescent efficiency in a single component.
机译：在环境条件下在不含金属的材料中实现高效磷光仍然是有机光电的主要挑战。在本文中，我们报告了一种简洁的方法，该方法可通过在环境条件下基于一类二溴苯衍生物在固态下操纵重原子相互作用来获得具有高达21.9％的高量子效率和毫秒级寿命的纯有机磷光。通过比较设计的两对有机化合物，一个在烷基末端（PhBr2C6Br2 / PhBr2C8Br2）上具有两个以上的溴原子，其发光效率要高于另一对（PhBr2C6 / PhBr2C8）。从单晶分析，提出磷光的增强是由于有机晶体中分子间重原子间相互作用的增加。此外，通过使用这种有机磷光晶体的模型探针对温度传感器进行了说明。这项工作不仅为提高不含金属的材料的磷光提供了一种简洁的选择，而且扩展了单一组分中具有高发光效率的纯有机磷光材料的范围。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号