Enhanced TADF Activity with Exciton Interaction toward Circularly Polarized OLED

通过激子相互作用增强 TADF 活性以实现圆偏振 OLED

• 批准号: 19F19342
• 负责人: 河合 壯
• 金额: $ 1.41万
• 依托单位: Nara Institute of Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2019
• 资助国家: 日本
• 起止时间: 2019-11-08 至 2022-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-19F19342/
• 关键词: CPL; fluorescence; oxygene; excitons; TADF; OLED

The goal of this project is to design new pure-organic TADF and CPL emitters for the development of new CP-OLED. Recently, circularly polarized light has been considered for efficient growth of plants and efficient circularly polarized light sources are desired for cultivating plants at the Plants manufacturing systems. The present targets become much important for future green society with simultaneous development of society of low-energy consumption and industrial development. This research is divided in two parts: synthetic organic chemistry and photo-physical analyses. We have developed a series of promising molecules in-silico and also in-flask. A new class of BODIPY dimers with chiral and achiral units shows efficient CPL and enhancement upon aggregation to molecular wires. After this trials on the first stage, we also developed photophysical characterizations including ultra-first fluorescence decay analysis. Typical two component decay profile is essential for TADF phenomena. We also considered to develop new TADF substances which are based on semi-planar aromatic units. After development of typical D-A structures, it became sensitive to oxygen, which is typical behavior for the TADF substances.

本项目的目标是设计新的纯有机TADF和CPL发射器，用于开发新的CP-OLED。近来，圆偏振光已被考虑用于植物的有效生长，并且在植物制造系统中需要有效的圆偏振光源来培养植物。随着低能耗社会与工业发展的同步发展，当前的目标对未来的绿色社会显得尤为重要。本研究分为有机合成与光物理分析两部分。我们已经在计算机和烧瓶中开发了一系列有前途的分子。具有手性和非手性单元的一类新的BODIPY二聚体显示出有效的CPL和在聚集成分子线时的增强。在第一阶段的试验之后，我们还开发了包括超一阶荧光衰减分析在内的物理表征。典型的双组分衰变轮廓是TADF现象的基本特征。 我们还考虑开发基于半平面芳族单元的新TADF物质。 在发展出典型的D-A结构后，它变得对氧敏感，这是TADF物质的典型行为。

项目成果

ENS Paris-Saclay(フランス)

巴黎萨克雷高等师范学校（法国）

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光信息分子科学实验室 - Facebook

Photonic and Reactive Molecular Science Laboratory

光子与反应分子科学实验室

University of Paris-Saclay(フランス)

巴黎萨克雷大学（法国）