Synthesis and electrochromic property of single-crystalline V2O5 nanorod arrays by template-based deposition

Katsunori Takahashi; Steven J. Limmer; Ying Wang; Guozhong Cao

doi:10.1117/12.563104

14 October 2004 Synthesis and electrochromic property of single-crystalline V₂O₅ nanorod arrays by template-based deposition

Katsunori Takahashi; Steven J. Limmer; Ying Wang; Guozhong Cao

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Proceedings Volume 5510, Nanophotonic Materials; (2004) https://doi.org/10.1117/12.563104
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Growth and electrochemical and optical properties of single crystalline vanadium pentoxide (V₂O₅) nanorod arrays were investigated. Vanadium pentoxide nanorod arrays were grown by electrochemical deposition, surface condensation induced by a pH change and sol electrophoretic deposition. Uniformly sized vanadium oxide nanorods with a length of about 10μm and diameters of 100 or 200nm were grown over a large area with near unidirectional alignment. TEM micrographs and electron diffraction patterns of V2O5 nanorods clearly show the single-crystalline nature of nanorods from all three growth routes with a growth direction of [010]. The growth mechanisms of single crystal vanadium pentoxide nanorods have been discussed. The transmittance of nanorod arrays decrease more quickly under applied electric field than sol-gel derived film, which suggests nanorod array electrodes possess significantly improved charge/discharge rate. Electrochemical analysis is proves that nanorod arrays have higher efficiency than sol-gel derived film. The relationships between electrochemical and optical properties, nano and microstructures, and growth mechanisms have been discussed.

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Katsunori Takahashi, Katsunori Takahashi, Steven J. Limmer, Steven J. Limmer, Ying Wang, Ying Wang, Guozhong Cao, Guozhong Cao, } "Synthesis and electrochromic property of single-crystalline V₂O₅ nanorod arrays by template-based deposition", Proc. SPIE 5510, Nanophotonic Materials, (14 October 2004); doi: 10.1117/12.563104; https://doi.org/10.1117/12.563104

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