title: Angle-independent VO2Thin Film on Glass Fiber Cloth as a Soft-Smart-Mirror (SSM).
abstract: Designing materials with a negative feedback function is beneficial for achieving temperature regulation inside a greenhouse. VO2has been studied extensively because of its low insulator-to-metal transition temperature (IMT). In this study, reflection changes during a VO2phase transition were investigated. Glass fiber cloth was used as a substrate, as it is stable and soft. A VO2thin film on a glass fiber cloth whose surface contained 96% V4+and 4% V5+was prepared using an inorganic sol-gels method. The insulator-to-metal transition temperature was decreased by 38 °C, which was observed from the reflection curve detected using an angle-resolved spectrometer. This decrease in IMT occurred mainly because of the presence of V5+, which causes destabilization of the monoclinic phase of VO2. When the greenhouse temperature was increased from 30 °C to 40 °C, the reflected intensity of VO2on glass fiber cloth decreased by 22% for the wavelength range of 400 nm to 800 nm. In addition, the angle-independent property of the VO2thin film was observed using an angle-resolved spectrometer. Owing to its thermo-reflective properties, the thin film can serve as a soft-smart-mirror (SSM) inside a greenhouse to stabilize the temperature, playing a negative feedback role.
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Nianjin
authors.initials: N
authors.lastname: Cai
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Wang
authors.initials: W
authors.lastname: Zhang
authors.affiliation: College of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, P.R. China.
authors.forename: Wanlin
authors.initials: W
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Yuchen
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Imran
authors.initials: I
authors.lastname: Zada
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Jiajun
authors.initials: J
authors.lastname: Gu
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Qinglei
authors.initials: Q
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Huilan
authors.initials: H
authors.lastname: Su
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Cuiping
authors.initials: C
authors.lastname: Guo
authors.affiliation: Jushi Fiberglass Research Institute, Jushi Group Co., Ltd. 669 Wenhua Road(South), Tongxiang Economic Development Zone, Tongxiang City, Zhejiang Province 314500, P.R. China.
authors.forename: Zhijian
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Jushi Fiberglass Research Institute, Jushi Group Co., Ltd. 669 Wenhua Road(South), Tongxiang Economic Development Zone, Tongxiang City, Zhejiang Province 314500, P.R. China.
authors.forename: Jianzhong
authors.initials: J
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Liping
authors.initials: L
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P.R. China.
authors.forename: Di
authors.initials: D
authors.lastname: Zhang