Electrochromic behavior of NiO film prepared by e-beam evaporation

Autor: D.R. Sahu, Tzu-Jung Wu, Sheng-Chang Wang, Jow-Lay Huang
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Journal of Science: Advanced Materials and Devices, Vol 2, Iss 2, Pp 225-232 (2017)
Druh dokumentu: article
ISSN: 2468-2179
DOI: 10.1016/j.jsamd.2017.05.001
Popis: 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.
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