Vapor Sorption to Polyvinyl Alcohol Thin Film Observed Using a Hybrid Sensor of Quartz-Crystal-Microbalance and Surface-Plasmon-Resonance
Vapor Sorption to Polyvinyl Alcohol Thin Film Observed Using a Hybrid Sensor of Quartz-Crystal-Microbalance and Surface-Plasmon-Resonance
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DOI：
10.1080/15421406.2015.1097002
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发表时间：
2015-11-22
影响因子：
0.7
通讯作者：
Kaneko, Futao
中科院分区：
文献类型：
--
作者：
Shinbo, Kazunari;Ohdaira, Yasuo;Kaneko, Futao
制备了石英-晶体-微天平(QCM)和表面等离子体共振(SPR)复合传感器，并原位观察了水和乙醇蒸气在聚乙烯醇(PVA)膜上的吸附。SPR波长的漂移不仅与PVA膜厚度有关，还与吸附的水蒸气有关。推测这是由于水蒸气吸附引起的薄膜膨胀以及薄膜厚度与消逝波穿透深度的关系。
A quartz-crystal-microbalance (QCM) and surface-plasmon-resonance (SPR) hybrid sensor was prepared, and the sorptions of water and ethanol vapors to polyvinyl alcohol (PVA) films were observed in situ. The shift of the SPR wavelength depended on the PVA film thickness as well as the sorbed vapor. It was estimated to be due to the film swelling induced by the vapor sorption and the relationship between the film thickness and the penetration depth of evanescent wave.