Fabrication of a Quartz-Crystal-Microbalance/Optical-Waveguide Hybrid Sensor and In situ Evaluation of Vacuum-Evaporated Lead Phthalocyanine Thin Film

In this study, we fabricated a novel quartz-crystal-microbalance (QCM)/optical-waveguide hybrid sensor. An in situ observation of a lead phthalocyanine (PbPc) thin-film deposition was conducted during vacuum evaporation, and the effectiveness of the sensor was demonstrated. The film thickness was ob...

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Veröffentlicht in:Japanese Journal of Applied Physics 2013-05, Vol.52 (5), p.05DC20-05DC20-5
Hauptverfasser: Shinbo, Kazunari, Uno, Akihiro, Hirakawa, Ryo, Baba, Akira, Ohdaira, Yasuo, Kato, Keizo, Kaneko, Futao
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Sprache:eng
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Zusammenfassung:In this study, we fabricated a novel quartz-crystal-microbalance (QCM)/optical-waveguide hybrid sensor. An in situ observation of a lead phthalocyanine (PbPc) thin-film deposition was conducted during vacuum evaporation, and the effectiveness of the sensor was demonstrated. The film thickness was obtained from the QCM frequency, and the optical absorption of the film was observed by optical waveguide spectroscopy using part of the QCM substrate without the electrode. The film absorption depends on the polarization direction, substrate temperature and deposition rate, owing to aggregate formation. The thickness dependence of the absorption property was also investigated.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.52.05DC20