Self-Assembled Multilayer Structure and Enhanced Thermochromic Performance of Spinodally Decomposed TiO2–VO2 Thin Film

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• 作者：Guangyao Sun ; Huaijuan Zhou ; Xun Cao ; Rong Li ; Masato Tazawa ; Masahisa Okada ; Ping Jin
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：March 23, 2016
• 年：2016
• 卷：8
• 期：11
• 页码：7054-7059
• 全文大小：473K
• ISSN：1944-8252

文摘

Composite films of VO₂–TiO₂ were deposited on sapphire (11–20) substrate by cosputtering method. Self-assembled well-ordered multilayer structure with alternating Ti- and V-rich epitaxial thin layer was obtained by thermal annealing via a spinodal decomposition mechanism. The structured thermochromic films demonstrate superior optical modulation upon phase transition, with significantly reduced transition temperature. The results provide a facile and novel approach to fabricate smart structures with excellent performance.