Investigation of electrochemical degradation and application of e-paper dyes in organic solvents

To avoid environmental pollution due to organic dye solutions,the electrophoresis and degradation of dye in organic solvents such as alcohol were investigated.Many dyes were tested in the Indium tin oxide(ITO)electrode driving cell,and about 15 dyes moved under voltage driving.Both the curves of ultraviolet-visible(UV-Vis)and infrared(IR)spectra of the electrophoresis samples showed that the metal complexes Red 04 and Acid Black 1 were degradable in alcohol solution by electrochemical reaction.The cyclic volt-ampere curves of the samples from the electrochemi-cal working station proved that electrochemical reactions took place.Based on the analysis of UV-Vis and IR spectra,the electrochemical degradation products of azo and metal complex azo dyes at lower voltage driving(1–5 V)in organic solvents are oxidized azobenzene,not hydrazine,which was found in the electrochemical degradation of dye water solutions.When the ITO electrode is modified by a polyimide(PI)film to a thickness less than 4μm,the electrochemical degradation of the dye in alcohol solution will not appear in the cyclic volt-ampere curves.A dye electrophoresis in organic solution flexible prototype e-paper display was formed and the display picture is shown.

微结构化柔性压力传感器的性能增强机制、实现方法与应用优势

柔性压力传感器具有易共形、高灵敏、快响应等特点,是发展物联网、可穿戴电子、触觉人工智能等领域的关键核心器件。通过敏感功能材料开发、功能层微结构设计、微纳制造方法优化等策略,可提升柔性压力传感器的综合性能,扩张其应用场景。其中,功能层微结构的创新设计被普遍认为是增强柔性传感器性能最有效的手段之一。本文综述了近年来基于微结构化的柔性压力传感器的最新研究进展,围绕微结构对于柔性压力传感器性能增强的机制、微结构的设计与实现方法以及微结构化柔性压力传感器在人机交互、医疗健康等领域的应用等方面进行详细阐述,并在此基础上对其未来发展方向进行展望。