Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Pyroelectric and dielectric properties of the modified PZT thin films and bulk ceramics

Modified PZT계 박막과 bulk의 초전 및 유전특성 비교

  • 김경우 (수원대학교 전자재료공학과) ;
  • 강동헌 (수원대학교 전자재료공학과) ;
  • 신상현 (수원대학교 전자재료공학과) ;
  • 조수철 (수원대학교 전자재료공학과) ;
  • 김영호 (수원대학교 전자재료공학과) ;
  • 길상근 (수원대학교 전자공학과)
  • Published : 2002.07.08
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Abstract

Pyroelectric and dielectric properties of modified PZT thin film and bulk ceramics were studied. In case of bulk specimens were prepared by conventional ceramic process and thin films with same composition and (111) preferred orientation were prepared by the sol-gel process. Their crystal structure, pyroelectric and dielectric properties were investigated after poling at $150^{\circ}C$ for 30 min for bulk ceramics and no poling treatment, respectively. Dielectric constants and losses of bulk and thin film were 600, 875 and 0.028, 0.025, respectively. Pyroelectric coefficients obtained were $50nC/cm^2K$ and $30nC/cm^2K$, respectively.

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