Work

Synthesis of hcp-Co Nanodisks

Year: 2002

Type: article

Abstract: hcp Co disk-shaped nanocrystals were obtained by rapid decomposition of cobalt carbonyl in the presence of linear amines. Other surfactants, in addition to the amines, like phosphine oxides and oleic acid were used to improve size dispersion, shape control, and nanocrystal stability. Co disks are ferromagnetic in character and they spontaneously self-assemble into long ribbons. X-ray and electron diffraction, electron microscopy, and SQUID magnetometry have been employed to characterize this material.

Source: Journal of the American Chemical Society

DOI: 10.1021/ja027262g

Authors: Victor F. Puntes, Daniela Zanchet, Can K. Erdonmez, A. Paul Alivisatos

Institutions: Brazilian Synchrotron Light Laboratory, University of California, Berkeley

Language: English

Topic: Chemical and Physical Properties of Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, National Center for Research Resources

Awards: DEVELOPMENT OF Q-DOTS AS BIOLOGICAL PROBES, Nanopartículas como unidades de construção em nanossistemas complexos: síntese, propriedades individuais e coletivas, G942272816