Ester-functionalized pyrene derivatives: Effects of ester substituents on photophysical, electrochemical, electrochromic, and electrofluorochromic properties
作者:Feng Li、Mingyue Pan、Qi He、Qianhua Zhou、Qian Tang、Chengbin Gong
DOI:10.1016/j.dyepig.2022.110203
日期:2022.5
group with fluorescence properties. Ester-functionalized pyrene derivatives potentially have interesting multifunctional properties such as electrochromic and electrofluorochromic characteristics. In this work, mono-, di-, tri-, and tetra-ester-substituted pyrene derivatives were synthesized, and the effects of the number of ester substituents on their photophysical, electrochemical, electrochromic, and
多功能电致变色材料广泛应用于光电器件. 芘是具有荧光特性的富π电子基团。酯官能化芘衍生物可能具有有趣的多功能特性,例如电致变色和电致荧光变色特性。在这项工作中,合成了单、二、三和四酯取代的芘衍生物,并研究了酯取代基的数量对其光物理、电化学、电致变色和电致荧光变色性能的影响。酯取代基的数量显着影响这些性质。芘上酯取代基数量的增加导致吸收和发射光谱的红移、驱动电压的降低以及电致变色的变化有色状态和电致变色性能。单酯、双酯和三酯官能化芘衍生物显示出良好的电致变色性能,即良好的开关稳定性、高光学对比度、快速响应和高着色效率。单酯和三酯官能化芘具有良好的电致荧光变色性能,在电致变色过程中具有可逆的荧光猝灭 - 有色和漂白状态之间的荧光恢复。酯官能化芘衍生物成功地用于两种色彩鲜艳的功能性数字显示器。这些结果表明,具有良好电致变色和电致荧光变色性能的酯官能化芘衍生物有望用于各种应用,例如数字显示器、有机