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Electrodeposition of V2O5 on TiO2 nanorod arrays and their electrochromic properties

机译:TiO2纳米棒阵列上的V2O5电沉积及其电致变色性能

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This paper shows a simple approach for the electrodeposition of V2O5 nanoparticles on a TiO2 nanorod arrays substrate by combining hydrothermal and electrochemical deposition methods. The electrochemical and optical properties of the TiO2/V2O5 hybrid film have been investigated and the results show that the hybrid film has obviously better electrochemical and electrochromic properties compared with the single V2O5 thin film. The TiO2/4cir-V2O5 hybrid film shows the most improved electrochromic properties with excellent cyclic stability, outstanding transmittance modulation (50% at 780 nm) and high coloration efficiency (28 C-1 cm(2) at 780 nm). The modified electrochromic properties are mainly due to the TiO2 nanorod array structure, which contributes to improve the structural stability of the V2O5 film and benefits the intercalation/deintercalation process of Li+ ions within the V2O5 film.
机译:本文展示了一种通过结合水热和电化学沉积方法将V2O5纳米粒子电沉积在TiO2纳米棒阵列基板上的简单方法。研究了TiO2 / V2O5杂化薄膜的电化学和光学性质,结果表明,与单层V2O5薄膜相比,杂化薄膜具有明显更好的电化学和电致变色性质。 TiO2 / 4cir-V2O5杂化膜显示出最佳的电致变色性能,具有出色的循环稳定性,出色的透射率调制(780 nm下为50%)和高着色效率(780 nm下为28 C-1 cm(2))。改进的电致变色性能主要归因于TiO2纳米棒阵列结构,有助于改善V2O5膜的结构稳定性,并有利于Li +离子在V2O5膜中的嵌入/脱嵌过程。

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