Piezoelectricity of Ferroelectret Porous Polyethylene Thin Film
スポンサーリンク
概要
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A ferroelectret porous polyethylene (Fp-PE) film with a thickness of 30 μm and a porosity of 58% was fabricated; its perpendicular piezoelectric constant $d_{33}$ was 80 pC/N. In the Fp-PE film observed by atomic force microscopy (AFM), pores with a diameter of about 0.3 μm were almost homogeneously distributed. Moreover, from piezoresponse force microscopy (PFM), it was found that areas surrounding the pores shift in one direction following the application of ac voltage, but that areas far from the pores cannot move freely. These results indicate that the electrical charges trapped in areas surrounding the pores in the Fp-PE film play an important role in piezoelectricity.
- 2009-09-25
著者
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Nakayama Masatoshi
Electro-Optics amp Microwave Systems Laboratory, Mitsubishi Electric Corporation
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Tajitsu Yoshiro
Electrical Engineering Department, Graduate School of Science and Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Tajitsu Yoshiro
Electrical Engineering Department, Graduate School of Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Yamamoto Ken
Electrical Engineering Department, Graduate School of Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Uenaka Yasuhiro
Electrical Engineering Department, Graduate School of Science and Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Oda Yusuke
Electrical Engineering Department, Graduate School of Science and Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Kataoka Shingo
Electrical Engineering Department, Graduate School of Science and Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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Nakayama Masatoshi
Electrical Engineering Department, Graduate School of Science and Engineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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