I2I Phase 1: tetradentate blue pt(II) phosphorescent emitters for OLEDs

I2I 第一阶段：用于 OLED 的四齿蓝色 pt(II) 磷光发射体

• 批准号: 508275-2017
• 负责人: Wang, Suning
• 金额: $ 9.11万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618381
• 关键词: I2I; Phase; tetradentate; blue; pt

Highly stable and efficient blue phosphorescent emitters are the ultimate challenge in the research and development of organic light emitting diodes (OLEDs) because they are very difficult to achieve. They are the key ingredients for highly energy efficient full-color information display devices (e.g. computer and TV monitors, cellular phones etc) and next generation lighting devices (e.g. lighting wall panels, tiles, or stripes) based on OLED technologies. Currently no stable blue phosphorescent compounds are available for OLEDs. As a consequence, they are in high demand by OLED industry. Our group has recently discovered a new class of highly stable and efficient blue phosphorescent platinum compounds that can be used in blue OLEDs. The key feature of the new blue emitters is that they all contain a macrocyclic chromophore that is not only responsible for the deep blue color produced by the molecule, but also restricts the molecule to a very rigid structure, preventing it from undergoing structural distortion in OLEDs, a preliminary cause of the instability of platinum based emitters in OLEDs. Preliminary evaluation indicates that the new class of blue emitters has exceptional stability, thus very promising for applications in OLEDs. This proposal seeks funding for (a) improved synthetic methods for large-scale synthesis of the new blue emitters so that samples can be provided to OLEDs companies for evaluation; (b) the investigation of performance, lifetime and stability of the new materials in OLEDs, and (c) the feasibility validation of the new materials by OLEDs industry.

高度稳定和高效的蓝色磷光发射器是有机发光二极管（OLED）研究和开发的终极挑战，因为它们非常难以实现。它们是基于 OLED 技术的高能效全彩信息显示设备（例如计算机和电视显示器、手机等）和下一代照明设备（例如照明墙板、瓷砖或条纹）的关键成分。目前还没有稳定的蓝色磷光化合物可用于 OLED。因此，OLED 行业对它们的需求量很大。我们的团队最近发现了一类新型的高度稳定和高效的蓝色磷光铂化合物，可用于蓝色 OLED。新型蓝色发射体的关键特征是它们都含有大环发色团，该发色团不仅导致分子产生深蓝色，而且将分子限制为非常刚性的结构，防止其在OLED中发生结构变形，这是OLED中铂基发射体不稳定的初步原因。初步评估表明，新型蓝色发射体具有出色的稳定性，因此在OLED中的应用非常有前景。该提案寻求资金用于（a）改进大规模合成新型蓝色发射体的合成方法，以便向 OLED 公司提供样品进行评估； (b) OLED 新材料的性能、寿命和稳定性研究，以及 (c) OLED 行业对新材料的可行性验证。