한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제33권11호
  • /
  • Pages.1195-1202
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  • 1996
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

졸-겔법을 이용한 $(Pb_{1-x}Sr_x)TiO_3$ 박막의 제조 및 특성에 관한 연구

Study on the Preparation and Characteristics of $(Pb_{1-x}Sr_x)TiO_3$ Thin Films by the Sol-gel Process

  • 선계혁 (전남대학교 공과대학 무기재료공학과) ;
  • 윤희한 (전남대학교 공과대학 무기재료공학과) ;
  • 황규석 (전남대학교 공과대학 무기재료공학) ;
  • 김병훈 (전남대학교 공과대학 무기재료공학과)
  • 발행 : 1996.11.01
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초록

To prepare the dielectric thin films of (Pb1-xSrx)TiO3 (x=0.1, 0.2, 0.3, 0.35, 0.5) by the sol-gel process titanium (IV) isopropoxide (Ti[OCH(CH3)2]4) and Pb Sr, acetate were used therefore the thin films were fabricated by dip-coating method. Stability of the sol decreased with addition of Sr content thin films could be fabricated up to 35mol% Over this range precipitation of sol occured thin films couldn't be obtained. Transmittance of thin films at visible range decreased with the increase of heat-treatment temperature but exhibited transmit-tance above 60% in all case. Moreover transmittance of thin films at visible range slightly increased with of addition of Sr,. When thin film containing 30 mol% srontium was heated at 600℃ the best perovskite phase was obtained. The dielectric constant (ε) was 280 and dielectric loss factor (tan δ) was 0.021 and curie tempera-ture (Tc) decreased with the increase of addition of Sr.

키워드

참고문헌

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