One-pot synthesis of bi-disperse FePt nanoparticles and size-selective self-assembly into AB2, AB5, and AB13 superlattices.
By chemically modifying the nucleation burst that generates monodisperse FePt nanocrystals, a mixture of Pt and Fe(x)Pt(1-x) nanoparticles forms during a one-pot reaction that includes a small amount of Cu as a catalyst; size-selective precipitation yields a bi-disperse population of Fe(x)Pt(1-x) nanoparticles, which can assemble into high-quality AB2, AB5, and AB13 superlattice structures.
Sra
Amandeep K
AK
Department of Chemistry, Texas A&M University, College Station, TX 77842-3012, USA.
Ewers
Trevor D
TD
Xu
Qiang
Q
Zandbergen
Henny
H
Schaak
Raymond E
RE