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Crystalline Orientation of PbTiO3 Nanorods Grown by MOCVD Using ZnO Nanorods as a Template
Published online by Cambridge University Press: 09 March 2011
Abstract
PbTiO3-covered ZnO nanorods were grown on Al2O3 by metalorganic chemical vapor deposition (MOCVD), and their crystalline orientation was investigated by x-ray diffraction (XRD). Structural analysis by scanning electron microscopy and XRD revealed that the hexagonal ZnO nanorods had -side facets. XRD analysis of PbTiO3 thin films on ZnO/Al2O3revealed that PbTiO3 was epitaxially grown on ZnO, showing 6 variants of crystallites with the c-axis tilted either 27o or 69o from the surface normal to the ZnO plane. Effective piezoelectric coefficients calculated for the 27o and 69o-crystallites using piezoresponse force microscopy confirm that deformation of nanorods and nanotubes contributed to the large electrically-induced strain along the radial direction.
- Type
- Research Article
- Information
- MRS Online Proceedings Library (OPL) , Volume 1292: Symposium K – Oxide Nanoelectronics , 2011 , mrsf10-1292-k06-09
- Copyright
- Copyright © Materials Research Society 2011
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