Ordered Arrays of Ferroelectric Nanoparticles by Pulsed Laser Deposition on PS-b-P4VP(PDP) Supramolecule-Based Templates
| Autor: | Beatriz Noheda, Anthony Ferri, Gerrit ten Brinke, Wendy van Zoelen, A. H. G. Vlooswijk, Anne-Marije Andringa |
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| Přispěvatelé: | Zernike Institute for Advanced Materials, Plasma & Materials Processing |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
COPOLYMER THIN-FILMS
Nanostructure Materials science PEROVSKITE General Chemical Engineering Nanowire FABRICATION Nanoparticle Nanotechnology General Chemistry NANOWIRES PRESSURE LITHOGRAPHY Ferroelectricity NANOSTRUCTURES Pulsed laser deposition chemistry.chemical_compound BLOCK-COPOLYMERS chemistry Materials Chemistry LEAD-ZIRCONATE-TITANATE Nanorod PHASE-TRANSITIONS Polystyrene Thin film |
| Zdroj: | Chemistry of Materials, 21(19), 4719-4723. AMER CHEMICAL SOC Chemistry of Materials, 21(19), 4719-4723. American Chemical Society |
| ISSN: | 0897-4756 |
| DOI: | 10.1021/cm901812j |
| Popis: | Thin films of comb-shaped supramolecules have been used to create arrays of spatially separated ordered nanorods with a polystyrene core and a poly(4-vinyl pyridine) corona. Room temperature pulsed laser deposition of a uniform layer of lead titanate on top of these nanorod arrays and Subsequent heating to 565 degrees C, far above the degradation temperature of the block copolymer nanorods, resulted in ordered arrays of ferroelectric lead titanate nanoparticles, due to the evaporation of the polymer rods and the SrTiO(3) substrate-nucleated crystallization of the lead titanate. The spacing in between the ordered cylinders of the template and the nonselective nature of the coating procedure sets the method apart from conventional block copolymer templating techniques involving parallel cylindrical structures. Given the nonselective nature of the coating method, this template procedure is applicable for a large variety of inorganics. |
| Databáze: | OpenAIRE |
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