Multifunctional electrochromic materials are ideal candidates for applications in various commercial fields. In this work, a series of dual-functional materials, 1,2,4,5-tetrakis (4-carboxyphenyl)benzene esters (TCPBEs), were synthesized by decorating 1,2,4,5-tetraphenylbenzene with tetra-esters. TCPBEs exhibited aggregation-induced emission and distinct phenomenon of aggregation-enhanced emission in water/N-methyl pyrrolidone due to their polyphenyl substituted structures and electrochromic properties due to surrounding esters. TCPBEs underwent a two-step one-electron reduction process in the electrochemical behavior. The electrochromic devices based on TCPBEs showed good long-term cycling stability (i.e., Hex-TCPBE remained 90% of the initial optical contrast after 2350 cycles), high optical contrast (i.e., Et-TCPBE up to 64.5%) and coloration efficiency (i.e., Hex-TCPBE up to 261 cm²/C), rapid response (<3 s), and dual colored state. Significant changes in color from colorless bleached state to orange and brown colored states were observed. Each TCPBE demonstrated distinct electrochromic properties because of the electronic effects of different R-substituted ester groups. In general, Et-TCPBE, Hex-TCPBE, and CH₃Ph-TCPBE performed better than Bn-TCPBE and CF₃Ph-TCPBE. In summary, this study provides a strategy for the design of novel dual-functional electrochromic materials, which have broad application prospects in the field of multifunctional devices.

多功能电致变色材料是各种商业领域应用的理想选择。在这项工作中，通过用四酯修饰 1,2,4,5-四苯基苯，合成了一系列双功能材料 1,2,4,5-四 (4-羧基苯基)苯酯 (TCPBEs)。TCPBEs在水/N-甲基吡咯烷酮中表现出聚集诱导发射和明显的聚集增强发射现象，这是由于它们的多苯基取代结构和周围酯引起的电致变色特性。TCPBEs 在电化学行为中经历了两步单电子还原过程。电致变色器件基于 TCPBE 的材料表现出良好的长期循环稳定性（即 Hex-TCPBE 在 2350 次循环后保持初始光学对比度的 90%）、高光学对比度（即 Et-TCPBE 高达 64.5%）和着色效率（即 Hex -TCPBE 高达 261 cm ² /C)、快速响应 (<3 s) 和双色状态。观察到颜色从无色漂白状态到橙色和棕色状态的显着变化。由于不同 R 取代酯基团的电子效应，每种 TCPBE 都表现出不同的电致变色特性。一般而言，Et-TCPBE、Hex-TCPBE 和 CH ₃ Ph-TCPBE 的性能优于 Bn-TCPBE 和 CF ₃Ph-TCPBE。综上所述，本研究为新型双功能电致变色材料的设计提供了一种策略，在多功能器件领域具有广阔的应用前景。