一个简单的分子设计策略,用于发光基来实现近红外辐射
Junshuai Ding1, Minzhe Zhang1, Yuhang Gao1
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Qianjin Avenue 2699, Changchun 130012, P. R. China.
The journal of physical chemistry letters
|September 7, 2023
概括
研究人员开发了一种新的发光基,TTM-2PTI,用于近红外 (NIR) 有机发光二极管 (OLED). 这种激光实现了双发射NIR OLED中迄今为止最长的电光发射 (EL) 波长,扩大了先进显示技术的可能性.
科学领域:
- 有机电子学有机电子学
- 光物理学的光学物理学
- 材料化学 材料化学
背景情况:
- 发光激素的旋转允许的双重辐射正在引起人们的兴趣.
- 有机发光二极管 (OLED) 现有的激素发射器主要局限于红色和深红色光谱区域.
- 将辐射扩展到近红外 (NIR) 区域,特别是在800nm以外,仍然是基于激素的OLED的挑战.
研究的目的:
- 设计和合成一种能够有效发射NIR辐射的新型发光基.
- 为了研究OLED设备中新基的电发光 (EL) 特性.
- 建立一个分子设计策略,以实现从激进发射器中长波长的NIR发射.
主要方法:
- 通过功能化TTM基核,合成一种新的发光基,2-(4-(bis(2,4,6-三甲基) - - - - - - - - - - - - - - - - - 甲基) - - - - - - - - - - - - - - - - - - 二甲基) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 甲基 (TTM-2PTI),通过功能化一个TTM基核.
- 光物理性质的表征,包括溶液中的NIR发射光谱.
- 使用TTM-2PTI作为发射器测量电解发光 (EL) 性能的有机发光二极管 (OLED) 的制造和测试.
主要成果:
- 合成的TTM-2PTI基体在烯中表现出NIR发射,其峰值在830nm.
- 一个采用TTM-2PTI的OLED设备显示了电解发光 (EL),其峰值在870nm.
- 这代表了迄今为止双发射近红外 (NIR) OLED 实现的最长的 EL 波长.
结论:
- 一个简单的分子设计策略,利用电子捐赠能力和减少烯的固态阻碍,已经成功地实现了NIR激素发射.
- TTM-2PTI代表了基于激素的NIR OLED技术的重大进步.
- 这项工作为新一代光电子设备的NIR频谱中可调节发射的激进发射器的开发开辟了新的途径.
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