| Title |
Preparation and Electrical Properties of Lead Zirconate Titanate Thick Films Fabricated by Screen-Printing Method |
| Authors |
박상만(Park, Sang-Man) ; 이성갑(Lee, Sung-Gap) |
| Keywords |
Ferroelectric ; Thick Films ; PZT ; Sol-Gel Method ; Spin-Coating |
| Abstract |
PZT(80/0) powder was prepared by a sol-gel method and PZT thick films were fabricated by the screen-printing method on the alumina substrates. The coating and drying procedure was repeated 4 times. And then the PZT(20/80) precusor solution was spin-coated on the PZT thick films. A concentration of a coating solution was 0.5mol/L and the number of coating was varied from 0 to 6. The porosity decreased and the grain size increased with increasing the number of coatings. The thickness of the PZT-6(6: number of coatings) films was about 60μm. The relative dielectric constant increased and the dielectric loss decreased with increasing the number of PZT(20/80) sol coatings. The relative dielectric constant and dielectric loss of the PZT-6 thick film were 275 and 3.5%, respectively. The remanent polarization, coercive field and breakdown strength of the PZT-6 film were 19.8μC/cm^2, 13.7kV/cm and 130kV/cm, respectively. |