Work

Piezoelectric PZT thick films on LaNiO3buffered stainless steel foils for flexible device applications

Year: 2008

Type: article

Abstract: In this paper, we report on 4.5µm piezoelectric Pb(Zr(0.52)Ti(0.48))O(3) (PZT) thick films deposited on flexible stainless steel (SS) foils with LaNiO(3) (LNO) buffer layers using a ceramic powder/sol-gel solution modified composite method. The polycrystalline thick films show a hysteresis loop at an applied electric field of 900 kV cm(-1) with remanent polarization and coercive electric field values of 27µC cm(-2) and 85 kV cm(-1), respectively. At 1 kHz, the dielectric constant is 653 and the dielectric loss is 0.052. The leakage current density of the film is lower than 1.55 × 10(-5) Acm(-2) over the range of 0 to ±150V. The conduction current shows ohmic behaviour at a low electric field and space-charge-limited current characteristics at a high electric field.

Source: Journal of Physics D Applied Physics

DOI: 10.1088/0022-3727/42/2/025504

Authors: B P Zhu, D D Li, Q F Zhou, J Shi, K K Shung

Institutions: University of Southern California, Wuhan University, Shanghai Jiao Tong University

Language: English

Topic: Ferroelectric and Piezoelectric Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: National Institute of Biomedical Imaging and Bioengineering

Award: A Resource on Medical Ultrasonic Transducer Technology