Optical Properties of Vanadium Dioxide Film with Nano-holes
Abstract:To improve the optical properties of vanadium dioxide (VO2) film, a mathematical model describing the optical properties of VO2 film with nano-periodic holes was proposed based on the effective medium approximation theory. The VO2 films were deposited on quartz substrates via magnetron sputtering and oxidation annealing. The VO2 films with nano-holes were fabricated by ion beam etching with the mask of porous alumina. The theoretical analysis and experimental results show that the minimum value of the reflectance moves toward a shorter wavelength when the porosity increases. The transmittance of the VO2 film with nano-holes is better than that of the VO2 film deposited on quartz substrate. The transmittance is increased by 20% in the infrared region. The VO2 film with nano-holes has better thermochromic properties for some potential applications.
Document Type: Research Article
Affiliations: University of Shanghai for Science and Technology, Shanghai 200093, China
Publication date: 2013-12-01
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- Journal of the Chinese Ceramic Society (JCCS), published in Chinese and in English, is a comprehensive monthly periodical focused on the fields of inorganic and non-metallic materials. The main purpose of the JCCS is to report the latest creative achievements in research, production and design for ceramics, glass, cementing materials, refractory, artificial crystals and other non-metallic materials. JCCS is regarded as an important journal in inorganic and non-metallic materials sciences in China and has been awarded by China Association for Science and Technology. The full-text of papers in JCCS is also published by CNKI (China National Knowledge Infrastructure). JCCS is indexed in EI Compendex, CA( Chemical Abstracts) ,SA and Ж and more than 20 databases.
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