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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/12623

Title: Optical Sum Frequency Generation Spectra of Water Molecules on a Polycarbonate Film Exposed to O_2 Plasma
Authors: Miyauchi, Yoshihiro
Sano, Haruyuki
Nakajima, Ryota
Mizutani, Goro
Hashizume, Tomihiro
Keywords: sum frequency generation
oxygen plasma
Issue Date: 2014-09-27
Publisher: The Surface Science Society of Japan
Magazine name: e-Journal of Surface Science and Nanotechnology
Volume: 12
Start page: 414
End page: 417
DOI: 10.1380/ejssnt.2014.414
Abstract: We have performed sum frequency generation (SFG) spectroscopy of water molecules on a polycarbonate (PC) film with and without 1 minute O_2 plasma exposure. The intensity of SFG signal corresponding to the O-H stretch vibrations of water at a water/PC film interface was ~1000 times as low as that of signal from a water/quartz interface. In the SFG spectrum of water facing a pristine PC film, peaks at 3270 and 3440 cm^<-1>, and a shoulder at 3620 cm^<-1> were observed. In the SFG spectrum of water on the film exposed to O_2 plasma, peaks were observed at 3200 and 3450 cm^<-1>. The peak at 3270 cm^<-1> red-shifted to 3200 cm^<-1> by the O_2 plasma exposure. The intensity of the peak at 3200 cm^<-1> was higher than that at 3450 cm^<-1>. The shoulder at 3620 cm^<-1> disappeared after the O_2 plasma exposure. The modulations of these peaks represent that the packing structure of water molecules was more ordered on the film after the O_2 plasma exposure.
Rights: Copyright (C) 2014 The Surface Science Society of Japan. Yoshihiro Miyauchi, Haruyuki Sano, Ryota Nakajima, Goro Mizutani, and Tomihiro Hashizume, e-Journal of Surface Science and Nanotechnology, 12, 2014, pp.414-417. http://dx.doi.org/10.1380/ejssnt.2014.414
URI: http://hdl.handle.net/10119/12623
Material Type: publisher
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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