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http://dx.doi.org/10.17661/jkiiect.2022.15.5.321

Physicochemical Characteristics of UV/Ozone Treated Polydimethylsiloxane(PDMS) Wrinkle Structures  

Park, Hong-Gyu (Department of Electrical, Electronic and Control, Changwon National University)
Park, Seung-Yub (Department of Electrical, Electronic and Control, Changwon National University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.15, no.5, 2022 , pp. 321-327 More about this Journal
Abstract
In this paper, a wrinkled structure was formed on the PDMS surface through UV/Ozone treatment, and the wrinkle structure formation mechanism was revealed through physicochemical characterization. A wrinkle structure was formed on the PDMS surface through UV/Ozone treatment for 30 min, and periodic wrinkle formation on the PDMS surface was confirmed by cross-sectional imaging of the scanning electron microscope. In addition, through x-ray photoelectron spectroscopy spectral analysis, it was confirmed that the silica-like-surface of SiOx on the PDMS surface was formed by UV/Ozone. The results of this study not only improve the understanding of the mechanism of wrinkle structure formation on the PDMS surface by UV/Ozone treatment, but also can be used as a basic study to adjust the amplitude and period of the wrinkle structure according to UV/Ozone irradiation conditions in the future.contact angles and the surface energies of FSAMs, it was confirmed that pretilt angles of LC molecules increased according to the alkyl chain length. High optical transparency and uniform homeotropic LC alignment characteristics of FSAMs showed the possibility of FSAMs as an LC alignment layers.
Keywords
Polydimethylsiloxane; UV/Ozone; scanning electron microscopy; x-ray photoelectron spectroscopy;
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