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中文摘要：
以四水醋酸镍-无水乙醇-聚乙二醇（PEG6000）前驱液作为溶胶，采用旋涂法制备的电致变色用氧化镍薄膜，用XRD测得的氧化镍薄膜结晶性能不好，SEM观察到的表面形貌是均匀平整致密的；采用电化学腐蚀系统时其进行循环伏安特性的测试，随后又用紫外可见光谱仪对变色性能进行测试；通过对比熬处理时间、溶胶陈化时间、镀膜层数对薄膜变色性能的影响，总结出了四水醋酸镍-无水乙醇-聚乙二醇（PEG6000）体系溶胶-凝胶法制备氧化镍薄膜的工艺条件，即将溶胶陈化15d后旋涂镀膜3次，在250℃下热处理2h制备得到的薄膜在λ=391nm时透射率调节范围达到61％。
英文摘要：
The eleetroehromie （EC） behavior, the mierostrueture, and the morphology of nickel oxide thin films spin-coated on indium tin oxide/glass substrates by sol-gel method were investigated. The solutions were prepared by the systems of Ni （Ac）2·4H2O-anhydrous ethanol-PEG （6000）. NiOx thin films was annealed at 250℃. The influence of the anneal, layers and the aging time of sols on the surface morphology, erystalline structure, and EC characteristics of the films were investigated by X-ray diffractometry （XRD）, scanning electron microscopy （SEM）,cyclic voltammetry （CV）,and optical transmittance （OT）. XRD spectrum revealed that films were not well-erystallized, and SEM images revealed that the surface morphology of the films were very uniform and dense. CV showed a reversible electrochemical insertion or extraction of the H^＋ ions, cycled in lmol/L NaOH electrolyte. OT spectra revealed that, at the best condition, i. e. sols aged for 15 days, films spinned 3 times and annealed at 250℃ for 2h,the adjustment of the transmittance of films can be 61% （λ= 391nm）.
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