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High switching speed and coloration efficiency of titanium-doped vanadium oxide thin film electrochromic devices

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : High switching speed and coloration efficiency of titanium-doped vanadium oxide thin film electrochromic devices
นักวิจัย : Lu, Yingxi , Liu, Liang , Mandler, Daniel , Lee, Pooi See
คำค้น : DRNTU::Engineering::Materials::Microelectronics and semiconductor materials
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Lu, Y., Liu, L., Mandler, D., & Lee, P. S. (2013). High switching speed and coloration efficiency of titanium-doped vanadium oxide thin film electrochromic devices. Journal of materials chemistry C, 1(44), 7380-7386. , http://hdl.handle.net/10220/20955 , http://dx.doi.org/10.1039/c3tc31508h
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of materials chemistry C
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Titanium (Ti)-doped vanadium oxide thin films were fabricated by electrochemical deposition on linear polyethylenimine (LPEI)-modified indium tin oxide-coated glass from mixed vanadium oxide and titanium oxide solutions with different Ti concentrations. The as-prepared films were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS). The electrochemical behaviour of the films was studied using cyclic voltammetry (CV) in 1.0 M LiClO4/propylene carbonate solution. Electrochromism of the oxide films upon Li-ion intercalation/deintercalation was investigated by transmittance measurements during the CV process. The charge transfer resistance of the Ti-doped vanadium oxide film was systematically analyzed with electrochemical impedance spectroscopy (EIS). The amorphous Ti-doped vanadium oxide film containing 4 mol% Ti exhibited the highest transmittance contrast (Δ%T = Tmax − Tmin) of ca. 51.1%T, and coloration efficiency of 95.7 cm2 C−1 at 415 nm. By increasing the Ti content to 10 mol%, the Ti-doped vanadium oxide film exhibited high switching speed and good cycling reversibility reaching 80% of colouring and bleaching time of 5 and 6 s, respectively. Furthermore, the transmittance contrast drops by only 10% after 600 cycles in a two-electrode system.

บรรณานุกรม :
Lu, Yingxi , Liu, Liang , Mandler, Daniel , Lee, Pooi See . (2556). High switching speed and coloration efficiency of titanium-doped vanadium oxide thin film electrochromic devices.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Lu, Yingxi , Liu, Liang , Mandler, Daniel , Lee, Pooi See . 2556. "High switching speed and coloration efficiency of titanium-doped vanadium oxide thin film electrochromic devices".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Lu, Yingxi , Liu, Liang , Mandler, Daniel , Lee, Pooi See . "High switching speed and coloration efficiency of titanium-doped vanadium oxide thin film electrochromic devices."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Lu, Yingxi , Liu, Liang , Mandler, Daniel , Lee, Pooi See . High switching speed and coloration efficiency of titanium-doped vanadium oxide thin film electrochromic devices. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.