Simultaneous in-situ synthesis and characterization of Co@Cu core-shell nanoparticle arrays

Joseph T McKeown; Yueying Wu; Jason D Fowlkes; Philip D Rack; Geoffrey H Campbell

doi:10.1002/adma.201404374

Simultaneous in-situ synthesis and characterization of Co@Cu core-shell nanoparticle arrays

Adv Mater. 2015 Feb;27(6):1060-5. doi: 10.1002/adma.201404374. Epub 2014 Dec 23.

Authors

Joseph T McKeown¹, Yueying Wu, Jason D Fowlkes, Philip D Rack, Geoffrey H Campbell

Affiliation

¹ Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.

PMID: 25534954
DOI: 10.1002/adma.201404374

Abstract

Core-shell particle ensembles are fabricated by pulsed-laser-induced dewetting of initially continuous, ultrathin alloy films through a combination of morphological and chemical instability. The synthesis of these arrays is monitored in situ with high spatial and temporal resolutions, which, when combined with ex situ composition analysis, provides insight to the morphological and chemical evolution pathways leading to core-shell particle formation.

Keywords: core-shell nanoparticles; dynamic TEM; pulsed-laser-induced dewetting; self-assembly.