• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Optical Materials >Multifunctional Thermally Activated Delayed Fluorescence Emitters and Insight into Multicolor-Mechanochromism Promoted by Weak Intra- and Intermolecular Interactions
【24h】

Multifunctional Thermally Activated Delayed Fluorescence Emitters and Insight into Multicolor-Mechanochromism Promoted by Weak Intra- and Intermolecular Interactions

机译：多功能热活化延迟荧光发射体和对弱分子内和分子间相互作用促进的多色机械致变色的见解

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

Two multifunctional emissive molecules (QBP-DMAC and QBP-PXZ) with a novel accepting unit (5,6-dihydropyrrolo[2,1-a]isoquinoline-1,3-diyl)bis(phenylmethanone) (QBP) are designed and synthesized. Both emitters exhibit thermally activated delayed fluorescence (TADF) and aggregation-induced emission characteristics, and QBP-DMAC shows multicolor mechanochromic luminescent (MCL). Intriguingly, crystal structure of QBP-DMAC reveals loose molecular packing mode and slipped pi-pi intramolecular interactions between DMAC moieties, which are identified as the underlying mechanism for its MCL behavior. Moreover, the QBP-DMAC-based organic light-emitting diode device achieves high external quantum efficiencies up to 18.8%, which is among the highest efficiencies for the MCL-active TADF emitters.
机译：设计并合成了具有新型受体单元（5,6-二氢吡咯并[2,1-a]异喹啉-1,3-二基）双（苯甲酮）的两个多功能发射分子（QBP-DMAC和QBP-PXZ） 。两个发射器均显示出热激活的延迟荧光（TADF）和聚集诱导的发射特性，而QBP-DMAC显示出多色机械致变色发光（MCL）。有趣的是，QBP-DMAC的晶体结构揭示了DMAC部分之间的松散分子堆积模式和pi-pi分子内相互作用，这被认为是其MCL行为的潜在机制。此外，基于QBP-DMAC的有机发光二极管器件可实现高达18.8％的高外部量子效率，这是MCL有源TADF发射器的最高效率之一。

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