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SHUMIN YANG1, YUNKAI QI1, LIJUN ZHENG1, WEI HAN1, WEI YANG1, JIANJUN GU1,*
A lumina thin films with rainbow stripe d structural colors have been fabricated by one step electrochemical oxidation of Al foil. The relationship s of t he colors and density of rainbow stripes with the oxidation voltage and time in oxalic acid solution, as well as the angle of the cathode and anode are discussed. A theoretical study of the changes in colors and density of rainbow stripes is consistent with the experimental results. The test results of polarization s how that reflected interference light from the top and bottom surface s of alumina th in films are linearly polarized These films were synthesized using a simplified process and has potential application in optical display technology, polarizer s , analyzer s , decoration s and anti counterfeiting.
Alumina thin films, Electrochemical oxidation , Rainbow stripes, Polarization.
SHUMIN YANG, YUNKAI QI, LIJUN ZHENG, WEI HAN, WEI YANG, JIANJUN GU, Synthesis and optical properties of alumina thin films with rainbow stripes structural colors, Optoelectronics and Advanced Materials - Rapid Communications, 10, 9-10, September-October 2016, pp.769-773 (2016).
Submitted at: Aug. 14, 2014
Accepted at: Sept. 29, 2016
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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