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The Electro-Optic Properties of Ferroelectric P(VDF-TrFE) LB Films

강유전성 고분자 P(VDF-TrFE) LB박막의 전기광학 특성

  • Kwak, Eun-Hwi (Laser and Optical Information Engineering, Cheongju University) ;
  • Jung, Chi-Sup (Laser and Optical Information Engineering, Cheongju University)
  • 곽은휘 (청주대학교 레이저광정보공학) ;
  • 정치섭 (청주대학교 레이저광정보공학)
  • Received : 2010.04.30
  • Accepted : 2010.06.21
  • Published : 2010.07.01

Abstract

Electro-optic modulators based on 25 monolayer langmuir-blodgett films of vinylidene fluoride and trifluoroethylene, P(VDF-TrFE), were fabricated. The LB films were prepared by transferring the monolayers on to an ITO coated glass with a surface pressure of 5 dyne/cm by use of the langmuir-schaefer deposition method. Measurement of the electro-optic coefficient has been carried out using a simple reflection techique. The E/O coefficient was found to be 154.9 pm/V and that value remained stable for at least 50 days.

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