Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1547236 | Physica E: Low-dimensional Systems and Nanostructures | 2007 | 5 Pages |
Abstract
This paper reports the formation and properties of nano-composite pyroelectric thin films. They consist of pyroelectric triglycine sulfate (TGS) single-crystal nano-rods grown inside a highly dense array of alumina pores (about 65Â nm diameter and density of 1011Â cmâ2). The nucleation and growth of the TGS single crystals are obtained by precipitation from a supersaturated aqueous solution. Nucleation is preferred only at the bottom of the pores due to a tight control of temperature, composition and pore diameter. Growth of single crystals with preferred crystallographic orientation is obtained with the aid of an applied electric field. Various crystallographic orientations (1Â 0Â 0) (â1Â 1Â 0) (â1Â 2Â 0) are obtained separately as a single preferred orientation by changing the amplitude of the electric field during crystal growth. The films exhibit ferroelectric behavior.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
M. Nitzani, S. Berger,