Tilted Face-Centered-Cubic Supercrystals of PbS Nanocubes

Quan, Zewei; Loc, Welley Siu; Lin, Cuikun; Luo, Zhiping; Yang, Kai; Wang, Yuxuan; Wang, Howard; Wang, Zhongwu; Fang, Jiye

doi:10.1021/nl302324b

Cited by 60 publications

(80 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Colloidal nanoparticles in suspension could self‐assemble into periodic structures on the substrate (i.e., a silicon nitride membrane, alkyl‐functionalized silicon chip or transmission electron microscopy (TEM) gird) or in a glass vial through solvent evaporation . During the evaporation procedure, under certain a temperature or dynamic vacuum, the assembly of nanoparticles is obtained as the attractive ligand‐ligand interaction . Here, interparticle potential might be ascribed to a combination of various interactions, where the van der Waals interaction acts as a primary attractive component and commonly eliminates electrostatic and steric repulsion.…”

Section: Van Der Waals Interactionsmentioning

confidence: 99%

Interparticle Forces Underlying Nanoparticle Self‐Assemblies

Luo

Wang

2015

Small

134

123

View full text Add to dashboard Cite

Studies on the self-assembly of nanoparticles have been a hot topic in nanotechnology for decades and still remain relevant for the present and future due to their tunable collective properties as well as their remarkable applications to a wide range of fields. The novel properties of nanoparticle assemblies arise from their internal interactions and assemblies with the desired architecture key to constructing novel nanodevices. Therefore, a comprehensive understanding of the interparticle forces of nanoparticle self-assemblies is a pre-requisite to the design and control of the assembly processes, so as to fabricate the ideal nanomaterial and nanoproducts. Here, different categories of interparticle forces are classified and discussed according to their origins, behaviors and functions during the assembly processes, and the induced collective properties of the corresponding nanoparticle assemblies. Common interparticle forces, such as van der Waals forces, electrostatic interactions, electromagnetic dipole-dipole interactions, hydrogen bonds, solvophonic interactions, and depletion interactions are discussed in detail. In addition, new categories of assembly principles are summarized and introduced. These are termed template-mediated interactions and shape-complementary interactions. A deep understanding of the interactions inside self-assembled nanoparticles, and a broader perspective for the future synthesis and fabrication of these promising nanomaterials is provided.

show abstract

Section: Van Der Waals Interactionsmentioning

confidence: 99%

Interparticle Forces Underlying Nanoparticle Self‐Assemblies

Luo

Wang

2015

Small

134

123

View full text Add to dashboard Cite

show abstract

“…In a recent report, coupled SAXS and WAXS patterns of oriented individual supracrystals enabled the determination of the relative orientation of the nanocrystal crystallographic faces within the supracrystal. The tilted orientation of PbS nanocubes was also found to be responsible for their unusually high packing efficiency.…”

Section: Three‐dimensional Self‐assembly Of Nanospheresmentioning

confidence: 94%

Three‐Dimensional Self Assembly of Semiconducting Colloidal Nanocrystals: From Fundamental Forces to Collective Optical Properties

Abécassis

2015

ChemPhysChem

View full text Add to dashboard Cite

Self-assembly of colloidal nanoparticles into higher order superstructures is becoming an important topic in current research in nanoscience. More and more research efforts are being dedicated to the controlled processing of nanoparticle dispersions to yield complex architectures from these simple building blocks. This is due to the fact that collective effects can emerge from an assembly of organized nanoparticles. Semiconducting colloidal nanocrystals such as quantum dots are promising materials for a wide range of applications in optoelectronic photovoltaics. The fundamental interactions that dictate the self-assembly of semiconducting colloidal nanocrystals in apolar solvents are reviewed with a focus on 3D structures and basic shapes (spheres, rods, and platelets). Emergent collective properties and the effect of the self-assembly on the optical properties of the particles are also discussed.

show abstract

“…It is though interesting to see how shape alone can have such an influence in how various materials self-assemble in an entropy driven process. Lately, there has been an increasing interest in the production and self-assembly of polyhedral particles [9][10][11][12][13][14][15]. Much progress has been made in enumerating and characterizing the packing of polyhedral shapes and the self-assembly of polyhedral nanocrystals into ordered superstructures [16].…”

Section: Convex Polyhedramentioning

confidence: 99%

Glassy dynamics of convex polyhedra

Tasios

Gantapara

Dijkstra

2014

The Journal of Chemical Physics

View full text Add to dashboard Cite

Dedicated to my little sister.i Acknowledgments I would like to thank Marjolein Dijkstra and Anjan Gantapara for their patience and continuous help in the realization of this Thesis. I would also like to thank Djamel el Masri for sharing his knowledge of calculating the SISF.ii Abstract Self-assembly of polyhedral-shaped particles have attracted huge interest with the advent of new synthesis methods to realize these faceted particles in the lab. Recent studies have shown that polyhedral particles exhibit rich phase behavior by excluded volume interactions alone. Some of these particles are alleged to show a transition to a glass phase by quenching the liquid sufficiently fast beyond the glass transition (supercooling) such that the formation of structures with long-range order is suppressed. Despite the recent progress, no study has been made on the glass formation of polyhedral-shaped particles. Here we study the glassy behavior of polyhedral particles using advanced Monte Carlo methods. In the first part of this thesis the formation of glass by mono-disperse polyhedral particles, namely octahedra, tetrahedra and triangular cupola are discussed. At the end, the fragility of these particles is calculated and compared with that of other systems.In the second part of this thesis we performed preliminary calculations on binary mixtures of polyhedral particles. Possible candidate crystal structures are studied using the floppy box Monte Carlo method.iii

show abstract

Tilted Face-Centered-Cubic Supercrystals of PbS Nanocubes

Cited by 60 publications

References 30 publications

Interparticle Forces Underlying Nanoparticle Self‐Assemblies

Interparticle Forces Underlying Nanoparticle Self‐Assemblies

Three‐Dimensional Self Assembly of Semiconducting Colloidal Nanocrystals: From Fundamental Forces to Collective Optical Properties

Glassy dynamics of convex polyhedra

Contact Info

Product

Resources

About