Sol-gel법으로 제조된 강유전성 PZT박막의 건조온도 및 열처리에 따른 전기적 특성 평가

Electrical Properties of Sol-Gel Drived Ferroelectric PZT Thin Films dependent on Dry Temperature and Heat Treatment

  • 배민호 (충북대학교 전기공학과) ;
  • 임민수 (충북대학교 전기공학과) ;
  • 김명녕 (두원공과대학 전자공학과) ;
  • 김동규 (두원공과대학 전자공학과) ;
  • 임기조 (충북대학교 전기공학과) ;
  • 김현후 (대전산업대학교 전자공학과)
  • 발행 : 1999.05.01

초록

Thin films of Pb(Zr,Ti)O$_3$ were fabricated by means of the sol-gel spin-coating method and the multi-coating of eight coating numbers. The thin films were dried on the temperature range of 250 ~ 400($^{\circ}C$), whenever the specimens were dried after each coating Processing. The fabricated ferroelectric thin films of lead zirconate titanate(PZT) were treated with the rapid thermal annealing(RTA) at 650($^{\circ}C$),or 3(min), and direct insertion thermal annealing(DITA) at 650($^{\circ}C$), for 30(min). The measured properties of dielectric thin films were following: The good results of dielectric properties were shown by the RTA specimen. The saturation polarization(Ps), remanent polarization(Pr), coercive field (Ec), dielectric constant and dielectric loss factor of the RTA specimen were estimated to be about 27.1[ $\mu$ C/$\textrm{cm}^2$], 13.7[ $\mu$ C/$\textrm{cm}^2$], 55.6(kV/cm), 786 and 6.4(%) respectively.

키워드