title: Lift-off PMN-PT Thick Film for High Frequency Ultrasonic Biomicroscopy.
abstract: Piezoelectric 0.65Pb(Mg(1/3)Nb(2/3))O(3)-0.35PbTiO(3) (PMN-35PT) thick film with a thickness of approximately 12 µm has been deposited on the platinum buffered Si substrate via a sol-gel composite method. The separation of the film from the substrate was achieved using a wet chemical method. The lifted-off PMN-35PT thick film exhibited good dielectric and ferroelectric properties. At 1 kHz, the dielectric constant and the dielectric loss were 3,326 and 0.037, respectively, while the remnant polarization was 30.0 µC/cm(2). A high frequency single element acoustic transducer fabricated with this film showed a bandwidth at -6 dB of 63.6% at 110 MHz.
authors.affiliation: Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Benpeng
authors.initials: B
authors.lastname: Zhu
authors.forename: Jiangxue
authors.initials: J
authors.lastname: Han
authors.forename: Jing
authors.initials: J
authors.lastname: Shi
authors.forename: K Krik
authors.initials: KK
authors.lastname: Shung
authors.forename: Q
authors.initials: Q
authors.lastname: Wei
authors.forename: Yuhong
authors.initials: Y
authors.lastname: Huang
authors.forename: M
authors.initials: M
authors.lastname: Kosec
authors.forename: Qifa
authors.initials: Q
authors.lastname: Zhou