Electrochemical and electrochromic properties of novel nanoporous NiO/V2O5 hybrid film

Nanoporous NiO/V2O5 hybrid film has been successfully prepared by combining chemical bath deposition (CBD) and electrochemical deposition methods. The electrochemical and optical properties of the hybrid film were investigated by cyclic voltammetry (CV), amperometric i–t, UV–vis spectroscopy and col...

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Bibliographic Details
Published in:Solar energy materials and solar cells 2015-01, Vol.132, p.467-475
Main Authors: Liu, Yanning, Jia, Chunyang, Wan, Zhongquan, Weng, Xiaolong, Xie, Jianliang, Deng, Longjiang
Format: Article
Language:English
Subjects:
Chemical deposition
Electrochromism
Electrodeposition
Hybrid film
Nickel oxide
Vanadium pentoxide
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Summary:Nanoporous NiO/V2O5 hybrid film has been successfully prepared by combining chemical bath deposition (CBD) and electrochemical deposition methods. The electrochemical and optical properties of the hybrid film were investigated by cyclic voltammetry (CV), amperometric i–t, UV–vis spectroscopy and colorimetry analysis. Compared with single V2O5 electrochromic film, the NiO/V2O5 hybrid electrochromic film reveals reasonably good cyclic stability, better transmittance modulation (35% at 776nm) and higher coloration efficiency (30.6C−1cm2 at 776nm). The noticeably improved electrochromic properties are mainly attributed to the introduction of NiO polycrystal substrate with nanoflake-like structure, which helps strengthen the structural stability of V2O5 film and improve the performance of Li+ ions intercalation/deintercalation. [Display omitted] •NiO/V2O5 hybrid electrochromic film has been prepared.•The hybrid film was obtained with nanoflake-like NiO film as substrate.•The hybrid film has a nanoporous structure.•The hybrid film has good electrochromic properties.
ISSN:0927-0248
1879-3398
DOI:10.1016/j.solmat.2014.09.033