Green synthesis of nanobelt-membrane hybrid structured vanadium oxide with high electrochromic contrast

• Main Authors: Wang, Xu, Chee, Kenji Jianzhi, Lee, Pooi See, Foo, Ce Yao, Tan, Alvin Wei Ming, Kang, Wenbin, Yan, Chaoyi
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/105883; http://hdl.handle.net/10220/20956
• Institution: Nanyang Technological University

Vanadium oxide with a nanobelt-membrane hybrid structure is synthesized under the structural directing effect from tannic acid, a green extract from plants. The electrochromic property of the resultant film was investigated and revealed a high contrast of 62% at the wavelength of 700 nm. Furthermore, with linear polyethylenimine (LPEI) surface treatment on ITO glass, the stability of the drop-casted film is greatly enhanced with only 18.6% reduction in transmission after 100 cycles.