| NiOxHy薄膜的电致变色特性和机理 |
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| 引用本文： | 吴正华,丘思畴,黄汉尧,何华辉.NiOxHy薄膜的电致变色特性和机理[J].物理化学学报,1996,12(7):615-620. |
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| 作者姓名： | 吴正华 丘思畴 黄汉尧 何华辉 |
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| 作者单位： | Department of Solid State Electronics,Huazhong University of Science and Technoly,Wuhan 430074 |
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| 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．
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| 关 键 词： | NiOxHy薄膜 电化学离子注入/抽出 电致变色 XPS谱 |
| 收稿时间： | 1995-12-07 |
| 修稿时间： | 1996-02-10 |
Study on the Characteristics and Mechanism of Electrochromism of NiO_xH_y Thin Film |
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| Wu Zhenghua, Qiu Sichou, Huang Hanyao, He Huahui.Study on the Characteristics and Mechanism of Electrochromism of NiO_xH_y Thin Film[J].Acta Physico-Chimica Sinica,1996,12(7):615-620. |
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| Authors: | Wu Zhenghua Qiu Sichou Huang Hanyao He Huahui |
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| Institution: | Department of Solid State Electronics,Huazhong University of Science and Technoly,Wuhan 430074 |
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| 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. |
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| Keywords: | NiO_xH_y thin film Electrochemical ion insertion/extraction Electrochromism XPS spectra |
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