Characterization and electrochromic properties of CuxNi1−xO films prepared by sol–gel dip-coating
2005; Elsevier BV; Volume: 80; Issue: 2 Linguagem: Inglês
10.1016/j.solener.2005.02.007
ISSN1471-1257
AutoresZuopeng He, Zhenguo Ji, Shichao Zhao, Chao Wang, Kun Liu, Zhizhen Ye,
Tópico(s)Copper-based nanomaterials and applications
ResumoCuxNi1−xO electrochromic thin films were prepared by sol–gel dip coating and characterized by XRD, UV–vis absorption and electrochromic test. XRD results show that the structure of the Cux Ni1−xO thin films is still in cubic NiO structure. UV–vis absorption spectra show that the absorption edges of the CuxNi1−xO films can be tuned from 335 nm (x = 0) to 550 nm (x = 0.3), and the transmittance of the colored films decrease as the content of Cu increases. CuxNi1−xO films show good electrochromic behavior, both the coloring and bleaching time for a Cu0.2Ni0.8O film were less than 1 s, with a variation of transmittance up to 75% at the wavelength of 632.8 nm.
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