Foam-derived multiferroic BiFeO3 nanoparticles and integration into transparent polymer nanocomposites
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Transparent BiFeO3/PMMA (PMMA = poly(methyl methacrylate)) nanocomposites with a thickness up to 40 μm are obtained via solution film casting of BiFeO3 nanoparticle dispersions. The multiferroic BiFeO3 nanoparticles are obtained in a space confined crystallisation process in a porous carbon matrix and subsequent removal of the matrix. The average crystallite size ranges from 46 nm to 106 nm for materials synthesised at 803 K and 903 K respectively, but, at higher temperature, significant amounts of side products are detected by means of X-ray powder diffraction. The nanoparticles are multiferroic with a magnetic coercivity of 1.88 A m-1 at 400 K and a polarisation of up to 1.04 μC/cm2 at 65 kV/cm (298 K). Surface functionalisation using oleic acid allows the integration into PMMA films with a high transmittance.
Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 1-15 |
Seitenumfang | 15 |
Fachzeitschrift | Journal of experimental nanoscience |
Jahrgang | 3 |
Ausgabenummer | 1 |
Publikationsstatus | Veröffentlicht - 16 Mai 2008 |
Peer-Review-Status | Ja |
Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- BiFeO, Multiferroic, Nanocomposite, Nanoparticles