Ferroelectric lead zirconate titanate and barium titanate nanotubes

Conference Paper

Luo, Y, I Szafraniak, V Nagarajan, R.B Wehrspohn, M Steinhart, J.H Wendorff, N.D Zakharov, Ramamoorthy Ramesh, M Alexe

10.1080/10584580390260009

Wetting of the pore walls of porous templates is a simple and convenient method to prepare nanotubes. Ferroelectric lead zirconate titanate and barium titanate nanotubes were fabricated by wetting of porous silicon templates of polymeric precursors. The ferro- and piezoelectric properties of an individual ferroelectric either of a PZT or a BaTiO3 nanotube were electrically characterized by measuring the local piezoelectric hysteresis. A sharp switching at the coercive voltage of about 2 V was shown from the hysterisis loop. The corresponding effective remnant piezoelectric coefficient is about 90 pm/V. We also expect that free-standing ferroelectric nanotubes obtained by partial etching of the silicon template will be used as building blocks of miniaturized devices and can have a significant impact in the field of nano-electromechanical systems.

Integrated Ferroelectrics

59

2003

10584587

cited By 41

Ramesh Lab