Electrochromic characterisation of electrochemically deposited nickel oxide films

被引:50
作者
Mahmoud, SA [1 ]
Aly, SA [1 ]
Abdel-Rahman, M [1 ]
Abdel-Hady, K [1 ]
机构
[1] Minia Univ, Fac Sci, Dept Phys, Minia, Egypt
来源
PHYSICA B | 2000年 / 293卷 / 1-2期
关键词
electrochromic characterization; nickel oxide films;
D O I
10.1016/S0921-4526(00)00517-2
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Electrochromic hydrated nickel oxide films have been cathodically deposited onto ITO-coated glass substrates from a solution of nickel sulphate and urea at room temperature. The in situ measurements of the response time during the colouring/bleaching process are reported. The dependence of the electrochromic properties on post-deposition heat treatment have been studied. A good optical modulation has been found for un-annealed samples, while samples annealed at higher temperatures showed smaller modulation. The extinction coefficient (k) has been computed from spectrophotometrically measured transmittance and reflectance. The structural characteristics as well as the surface morphology of some nickel oxide samples were investigated using X-ray diffraction and SEM analysis. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:125 / 131
页数:7
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