Regensburg 2004 – wissenschaftliches Programm

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O: Oberflächenphysik

O 24: Nanostrukturen II

O 24.10: Vortrag

Dienstag, 9. März 2004, 18:00–18:15, H38

Ferroelectric Nano-Rods Grown in Porous Alumina Template — •Dung Le Quang Tien1, J. Yekecheva2, F. Müller1, A.-D. Müller1, V.D. Dan3, and H. Hietschold11Chemnitz University of Technology, Institute of Physics, Solid Surfaces Analysis Group, D-09107 Chemnitz, Germany — 2On leave from Nowosibirsk State Technical University-Russia — 3Physics Department, Hue University,77 Nguyen Hue street, Hue City - Vietnam

We have investigated the structural and electrical properties of ferroelectric nano-rods of lead zirconate-titanate PbZr1-xTixO3 (PZT) grown in a porous alumina template. Porous alumina membranes with pores ranging from 50 to 400 nm were obtained by an electrochemical etching. We have seen a clear dependency of the voltage and the electrolyte on the size and shape of these pores. The morphology was characterized using SEM and AFM. The perfect cylindrical porous alumina samples were used to grow the PZT nanotubes by dipping in PZT precursor using vacuum to promote penetration into the pores.

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