SPM studies of ferroelectric nanostructures prepared by a microemulsion-assisted method onto substrates
Ferroelectric PbTiO3 nanostructures have been fabricated using two different procedures that involve microemulsions and Chemical Solution Deposition onto Pt/TiO2 /SiO2/(100)Si substrates. The first procedure enables the fabrication of structures with controlled size and shape, as observed by Atomic...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/41038 |
| Acceso en línea: | http://hdl.handle.net/10261/41038 |
| Access Level: | acceso abierto |
| Palabra clave: | Nanostructure Nanoestructura Microemulsion Microemulsión Integration Integración Ferroelectric Ferroeléctrico Lead Titanate Plomo Titanato SPM Microscopía Piezoelectric Piezoeléctrico |
| Sumario: | Ferroelectric PbTiO3 nanostructures have been fabricated using two different procedures that involve microemulsions and Chemical Solution Deposition onto Pt/TiO2 /SiO2/(100)Si substrates. The first procedure enables the fabrication of structures with controlled size and shape, as observed by Atomic Force Microscopy (AFM) topography and computer assisted quantitative analysis, while the second procedure, in addition, yields very small (≈ 20 nm) isolated, ferroelectric nanoislands. The ferroelectric character of the nanostructures is demonstrated using Piezoelectric Force Microscopy (PFM). The ferroelectric properties depend on the height of the nanostructures, showing a strong pinning layer effect for the smaller ones, revealed by the asymmetry of the piezoelectric hysteresis loops. |
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