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Themed collection Colloidal Self- Assembled Supracrystals and Heterostructures

21 articles
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Front cover

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Graphical abstract: Back cover
Editorial

Self-assembled supracrystals and hetero-structures made from colloidal nanocrystals

Welcome to this CrystEngComm themed collection on self-assembled supracrystals and hetero-structures made from colloidal nanocrystals.

Graphical abstract: Self-assembled supracrystals and hetero-structures made from colloidal nanocrystals
Highlight

Charged nanoparticles crystallizing and controlling crystallization: from coatings to nanoparticle surfactants to chemical amplifiers

Metal nanoparticles functionalized with self-assembled monolayers of ligands terminated in charged groups constitute a unique class of nanoscopic polyions – or “nanoions” in short – capable of assembling into higher-order structures.

Graphical abstract: Charged nanoparticles crystallizing and controlling crystallization: from coatings to nanoparticle surfactants to chemical amplifiers
Highlight

Mesocrystalline materials and the involvement of oriented attachment – a review

In this work the oriented attachment and mesocrystal formation via non-classical pathways have been reviewed with particular emphasis being placed on their self-assembly mechanisms as well as the new collective properties of the resulting crystalline nanoparticular arrangements and their potential uses in applications.

Graphical abstract: Mesocrystalline materials and the involvement of oriented attachment – a review
Open Access Highlight

Synthesis of copper sulphide-based hybrid nanostructures and their application in shape control of colloidal semiconductor nanocrystals

Advances in the synthesis of copper sulphide containing nanostructures and the underlying reaction mechanisms are summarized.

Graphical abstract: Synthesis of copper sulphide-based hybrid nanostructures and their application in shape control of colloidal semiconductor nanocrystals
Highlight

Seeded-growth, nanocrystal-fusion, ion-exchange and inorganic-ligand mediated formation of semiconductor-based colloidal heterostructured nanocrystals

Various mechanisms of formation of semiconductor-based colloidal heterostructured nanocrystals have been highlighted.

Graphical abstract: Seeded-growth, nanocrystal-fusion, ion-exchange and inorganic-ligand mediated formation of semiconductor-based colloidal heterostructured nanocrystals
Communication

Polymer-directed assembly of colloidal nanoparticle heterojunctions

Co-assembly of differently sized and shaped nanoparticles within a polymer matrix can be controlled to form unique nanoparticle heterojunctions.

Graphical abstract: Polymer-directed assembly of colloidal nanoparticle heterojunctions
Communication

P-type Cu7Te5 single-crystalline nanocuboids: size-controlled synthesis and large-scale self-assembly

The synthesis, shape evolution and large-scale self-assembly of p-type Cu7Te5 single-crystalline nanocuboids have been studied in this communication.

Graphical abstract: P-type Cu7Te5 single-crystalline nanocuboids: size-controlled synthesis and large-scale self-assembly
Communication

Layer-by-layer assembly of L10-FePt nanoparticles with significant perpendicular magnetic anisotropy

The L10-FePt film has been fabricated via layer-by-layer assembly under an external magnetic field and exhibits significant perpendicular magnetic anisotropy.

Graphical abstract: Layer-by-layer assembly of L10-FePt nanoparticles with significant perpendicular magnetic anisotropy
Communication

A general approach toward polymer-coated plasmonic nanostructures

A generic method for the preparation of polymer-coated plasmonic nanostructures with tunable thickness of the hydrophobic polymer spacer.

Graphical abstract: A general approach toward polymer-coated plasmonic nanostructures
Paper

GISAXS and GIWAXS study on self-assembling processes of nanoparticle based superlattices

The mechanism underlying the formation of nanoparticle assembly was elucidated by a GISAXS/GIWAXS study.

Graphical abstract: GISAXS and GIWAXS study on self-assembling processes of nanoparticle based superlattices
Paper

Cation exchange of aqueous CuInS2 quantum dots

Chalcopyrite copper indium disulfide (CIS) QDs have been of recent interest due to their non-toxicity. This article shows a straightforward aqueous cation exchange method to synthesise CIS particles with zinc sulfide coating.

Graphical abstract: Cation exchange of aqueous CuInS2 quantum dots
Paper

Rhodium growth on Cu2S nanocrystals yielding hybrid nanoscale inorganic cages and their synergistic properties

Edge growth of rhodium and ruthenium–rhodium metals on highly faceted Cu2S semiconductor seeds yields a family of nano-inorganic caged hybrid nanoparticles.

Graphical abstract: Rhodium growth on Cu2S nanocrystals yielding hybrid nanoscale inorganic cages and their synergistic properties
Paper

Assembly of binary, ternary and quaternary compound semiconductor nanorods: From local to device scale ordering influenced by surface charge

In this article we outline the assembly of binary, ternary and quaternary nanorods using three separate protocols: (a) droplet based assembly, (b) assembly in a vial, (c) electrophoretic deposition. The rods are the important photoabsorbers CdS, CdSexS1−x, CuInxGa1−xS, and Cu2ZnSnS4.

Graphical abstract: Assembly of binary, ternary and quaternary compound semiconductor nanorods: From local to device scale ordering influenced by surface charge
Paper

Insight into the formation mechanism of PtCu alloy nanoparticles

What are the right conditions to form PtCu alloy NPs? A study of the formation mechanism.

Graphical abstract: Insight into the formation mechanism of PtCu alloy nanoparticles
Paper

Controllable growth of Ag2S–CdS heteronanostructures

High quality Ag2S–CdS heteronanostructures were prepared via a facile one-pot method.

Graphical abstract: Controllable growth of Ag2S–CdS heteronanostructures
Open Access Paper

Synthesis of ferromagnetic cobalt nanoparticle tipped CdSe@CdS nanorods: critical role of Pt-activation

Activation of CdSe@CdS nanorods by a platinum deposition reaction enables selective deposition of a single dipolar cobalt nanoparticle tip per nanorod.

Graphical abstract: Synthesis of ferromagnetic cobalt nanoparticle tipped CdSe@CdS nanorods: critical role of Pt-activation
Paper

Controlled overgrowth of Pd on Au nanorods

Controlled overgrowth of Pd on Au nanorods allows one to fine-tune the particle geometries and optical properties of bimetallic heteronanostructures.

Graphical abstract: Controlled overgrowth of Pd on Au nanorods
Paper

Reversible self-assembly of MxS (M = Cu, Ag) nanocrystals through ligand exchange

Reversible self-assembly of MxS (M = Cu, Ag) nanocrystals in solution is achieved through ligand exchange.

Graphical abstract: Reversible self-assembly of MxS (M = Cu, Ag) nanocrystals through ligand exchange
21 articles

About this collection

Colloidal nanochemistry offers the possibility of synthesising nanostructured materials that exhibit novel and/or collective properties, and have capabilities that can be exploited in multiple applications. As such, the understanding of the formation of complex all-nanocrystal-made structures from their building blocks is essential for the design of hierarchically structured materials.

Guest edited by Professor Marie Paule Pileni (University Pierre & Marie Curie), Dr P. Davide Cozzoli (CNR Nano) and Professor Nicola Pinna (Humboldt-Universität zu Berlin), this themed issue focuses on novel approaches and strategies for the assembly and the hetero-structuring of colloidal nanocrystals.

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