Electrochromic Properties of the Vanadium Pentoxide Doped with Nickel as an Ionic Storage Layer

Tien-Chai Lin, Bai-Jhong Jheng and Wen-Chang Huang
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Tien-Chai Lin: Department of Electrical Engineering, Kun Shan University, Yongkang Dist., Tainan 710303, Taiwan
Bai-Jhong Jheng: Tintable Kibing Cooperation, Rende Dist., Tainan 71758, Taiwan
Wen-Chang Huang: Department of Electrical Engineering, Kun Shan University, Yongkang Dist., Tainan 710303, Taiwan

Energies, 2021, vol. 14, issue 8, 1-10

Abstract: The electrochromic property of nickel doped vanadium pentoxide (V 2 O 5 ) deposited by a co-sputtering system is investigated. The structural analysis of the thin film was done by an X-ray diffraction (XRD) analyzer. The surface morphology of the film was studied by a field emission scanning electron microscopy (FE-SEM). The composition of the film was detected by an Auger analysis. The electrochromic properties of the device were measured by cyclic voltammetry. For the undoped V 2 O 5 thin film, the charge storage capacity increases with the thickness and is 42.58 mC/cm 2 at the thickness of 192.4 nm after 2 h deposition. For the Ni-doped V 2 O 5 , the Ni-V-O film shows V 2 O 5 structural dominate with cathode coloration in the lower Ni deposition power region and the charge storage capacity decreases with the increases of the power, while the Ni-V-O film transfers to NiO structural dominate with anodic coloration at the realm of higher Ni doping. The charge storage capacity increases with the increase of Ni doping. It can reach to 101.35 mC/cm 2 . The Ni-V-O electrochromic film shows improvement of transmittance difference between colored and bleached values and improvement of charge store capacity as it is compared to pure V 2 O 5 films.

Keywords: electrochromic; vanadium pentoxide; nickel; ionic storage layer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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