【摘要】 运用循环伏安和阶跃电位方法研究了Ni（OH）2粉末靶直流溅射沉积的NiOxHy薄膜电致变色特性．结合实时的光透射-时间变化，发现着色后的薄膜在零外电势下有一自发的消色过程，该过程可能对应着Li+的自发注入。着色没有自发过程，获取了着消色状态Ni2p3／2和O1s的XPS谱，表明在着色态镍被氧化，消色态镍被还原，相应地氧的化学环境发生改变．更多还原

【Abstract】 The electrochromic characteristics of the NiOxHy thin film DC sputtered from powder Ni(OH)2 target are investigated in LiClO4-PC nonaqueous electrolyte by cyclic voltammetry, volt -transmittance and step potential methods. The spontaneous bleaching process occurs in the zero potential period immediately after the colouring period and corresponds to the Li+ insertion. The colouration process is not spontaneous. XPS spectra are obtained for the bleached and coloured statos in Ni2p3/2 and O1s regions. Ni atoms are oxidized in coloured statc and reduced in bleached state. The cthemical enviroments for O atoms are changed accordngly.更多还原