Electrochromic behavior of NiO film prepared by e-beam evaporation

Journal of Science: Advanced Materials and Devices

Tzu-Jung Wu¹  Jow-Lay Huang¹  Sheng-Chang Wang²  D.R. Sahu³ 

[1] Department of Materials Science and Engineering, National Cheng-Kung University, Tainan 701, Taiwan, ROC;Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan, ROC;Department of Natural and Applied Sciences, Namibia University of Science and Technology, Private Bag 13388, Windhoek, Namibia;

关键词: E-beam evaporation;    Nickel oxide;    Electrochromic properties;   

DOI  :  10.1016/j.jsamd.2017.05.001

来源: DOAJ

【 摘 要 】

The NiO thin films were prepared by the electron beam evaporation method using synthesized sintered targets. As-prepared films were characterized using X-ray diffraction, scanning electron microscopy, UV–VIS spectroscopy and cyclic voltammetry. The thicker films were found to exhibit a well-defined structure and a well-developed crystallite size with greater transmittance modulation and durability. The as-deposited thinner films of 170 nm showed a faster response time during electrochromic cycles with a coloration efficiency of 53.1 C/cm2 than the thicker ones. However, the thicker films showed no enhanced electrochromic properties such as a larger intercalated charge than the thinner ones. The electrochromic properties of the thinner films became deteriorated after 800 cycling tests.

【 授权许可】

Unknown