Diamond Family of Nanoparticle Superlattices
Diamond lattices formed by atomic or colloidal elements exhibit remarkable functional properties. However, building such structures via self-assembly has proven to be challenging because of the low packing fraction, sensitivity to bond orientation, and local heterogeneity. We report a strategy for creating a diamond superlattice of nano-objects via self-assembly and demonstrate its experimental realization by assembling two variant diamond lattices, one with and one without atomic analogs. Our approach relies on the association between anisotropic particles with well-defined tetravalent binding topology and isotropic particles. The constrained packing of triangular binding footprints of truncated tetrahedra on a sphere defines a unique three-dimensional lattice. Hence, the diamond self-assembly problem is solved via its mapping onto two-dimensional triangular packing on the surface of isotropic spherical particles.
W. Liu et al., "Diamond Family of Nanoparticle Superlattices," Science, vol. 351, no. 6273, pp. 582 - 586, American Association for the Advancement of Science (AAAS), Feb 2016.
The definitive version is available at https://doi.org/10.1126/science.aad2080
Keywords and Phrases
diamond; double stranded DNA; nanoparticle, anisotropy; chemical binding; diamond; innovation; isotropy; lattice dynamics; nanoparticle, Article; crystal structure; hybridization; nanoencapsulation; particle size; priority journal; thermal conductivity; transmission electron microscopy; X ray diffraction
International Standard Serial Number (ISSN)
Article - Journal
© 2016 American Association for the Advancement of Science (AAAS), All rights reserved.
01 Feb 2016