Polycrystalline nanowires of gadolinium-doped ceria via random alignment mediated by supercritical carbon dioxide.

ABSTRACT: This study proposes a seed/template-free method that affords high-purity semiconducting nanowires from nanoclusters, which act as basic building blocks for nanomaterials, under supercritical CO2 fluid. Polycrystalline nanowires of Gd-doped ceria (Gd-CeO2) were formed by CO2-mediated non-oriented attachment of the nanoclusters resulting from the dissociation of single-crystalline aggregates. The unique formation mechanism underlying this morphological transition may be exploited for the facile growth of high-purity polycrystalline nanowires.

SUBMITTER: Kim SW 

PROVIDER: S-EPMC3622141 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature