镁镍功能薄膜的制备及电致变色性能的研究

Mg-Ni electrochromics functional films fabricated by electrodeposition and their properties

采用恒电位法在铜基片上沉积出镁-镍薄膜,采用循环伏安法研究了N-N二甲基甲酰胺溶液中Mg2+、Ni2+的电化学行为,并通过反射法对薄膜的电致变色性能进行了表征。电致变色前后,镀层薄膜的颜色及在可见光范围内的透光和反射光的能力表现出很大的差别,显示出良好的电致变色性能,而且此过程具有较好的重复性。

Mg-Ni thin films are successfully electrodeposited by potentiostatic electrolysis. The cyclic voltammetry was used to study the electrochemical behaviors of Mg^2＋ and Ni^2＋ ions,and a reflection method was used to measure their electrochromics property. The films showed remarkable optical switching from transparent state to opaque state, by altering the samples from negative pole to positive pole in alkaline solution. The processes were also possessed of good repeatability.