Growth of colloidal nanoparticles of group II-VI and IV-VI semiconductors on top of magnetic iron-platinum nanocrystals
Articolo
Data di Pubblicazione:
2008
Citazione:
Growth of colloidal nanoparticles of group II-VI and IV-VI semiconductors on top of magnetic iron-platinum nanocrystals / M. Zanella, A. Falqui, S. Kudera, L. Manna, M.F. Casula, W.J. Parak. - In: JOURNAL OF MATERIALS CHEMISTRY. - ISSN 0959-9428. - 18:36(2008 Aug), pp. 4311-4317. [10.1039/b804154g]
Abstract:
Colloidal hybrid nanoparticles with blebs of II-VI and IV-VI particles on top of FePt particles were successfully grown. Whereas in the case of XE = CdS, ZnS, PbS and CdSe, FePt-XE dimer structures were successfully obtained, the growth failed for XE = ZnSe, PbSe. Structural, magnetic, and optical analysis of the structures revealed a moderate influence of the semiconductor domain on the magnetic properties of the FePt core particle, which can be ascribed to the effect of annealing conditions, atom diffusion and compositional variations during heterostructure formation. On the other hand, we report a significant fluorescence quenching of the semiconductor bleb due to the underlying FePt particle.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Zanella, A. Falqui, S. Kudera, L. Manna, M.F. Casula, W.J. Parak
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