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以苯胺四聚体做为电致变色材料,在保持ITO有效涂覆面积不变的情况下,通过控制溶液浓度和用量的方式控制膜厚,采用自然铺展的方式制备得到了均匀的电致变色膜.循环伏安特性曲线表明,在-0.2～0.8 V电压范围内,随着电压的升高,苯胺四聚体结构发生从还原态到中间态再到氧化态的转变,并伴随着颜色从浅黄色到绿色再到蓝色的变化.研究发现,电解质溶液种类和膜厚对苯胺四聚体膜的电致变色性能有较大影响.苯胺四聚体膜的对比度按照HCl,HNO3,H2SO4,LiClO4电解质溶液的顺序依次降低.随着膜厚度增加,苯胺四聚体膜的对比度增加,响应时间延长.当采用樟脑磺酸掺杂的苯胺四聚体制备电致变色膜时,在其他条件相同的情况下可以提高苯胺四聚体膜的对比度并同时缩短响应时间.
Aniline tetramer as an electrochromic material, while maintaining the same effective area of ITO coating, by controlling the concentration and amount of the solution to control the film thickness, the use of natural spreading prepared uniform electrochromic The cyclic voltammetry curves show that the aniline tetramer structure undergoes a transition from a reduced state to an intermediate state to an oxidation state with a voltage increase in the voltage range of -0.2 to 0.8 V, Light yellow to green to blue changes.It was found that the type and thickness of the electrolyte solution have a greater impact on the electrochromic properties of the aniline tetramer membrane.Aniline tetramer membrane contrast according to the HCl, HNO3, H2SO4, The order of LiClO4 electrolyte solution decreases in turn.With the increase of film thickness, the contrast of aniline tetramer membrane increases and the response time prolongs.When the electrochromic membrane is prepared by using camphorsulfonic acid doped aniline tetramer, The contrast of the aniline tetramer membrane can be increased and the response time can be shortened at the same time.