Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation Mechanisms

Colloidal inorganic nanocrystals, free-standing crystalline nanostructures generated and processed in solution phase, represent an important class of advanced nanoscale materials owing to the flexibility with which their physical–chemical properties can be controlled through synthetic tailoring of t...

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Main Authors: Riccardo Scarfiello, Concetta Nobile, P. Davide Cozzoli
Format: Article
Language:English
Published: Frontiers Media S.A. 2016-12-01
Series:Frontiers in Materials
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fmats.2016.00056/full
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spelling doaj-1aa2b0ada9d84356af11006988d4e59f2020-11-24T20:59:05ZengFrontiers Media S.A.Frontiers in Materials2296-80162016-12-01310.3389/fmats.2016.00056228392Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation MechanismsRiccardo Scarfiello0Riccardo Scarfiello1Concetta Nobile2P. Davide Cozzoli3P. Davide Cozzoli4P. Davide Cozzoli5University of SalentoCNR NANOTEC – Institute of Nanotechnology - Sede di LecceCNR NANOTEC – Institute of Nanotechnology - Sede di LecceUniversity of SalentoCNR NANOTEC – Institute of Nanotechnology - Sede di LecceConsorzio INSTMColloidal inorganic nanocrystals, free-standing crystalline nanostructures generated and processed in solution phase, represent an important class of advanced nanoscale materials owing to the flexibility with which their physical–chemical properties can be controlled through synthetic tailoring of their compositional, structural and geometric features and the versatility with which they can be integrated in technological fields as diverse as optoelectronics, energy storage/ conversion/production, catalysis and biomedicine. In recent years, building upon mechanistic knowledge acquired on the thermodynamic and kinetic processes that underlie nanocrystal evolution in liquid media, synthetic nanochemistry research has made impressive advances, opening new possibilities for the design, creation and mastering of increasingly complex colloidal molecules, in which nanocrystal modules of different materials are clustered together via solid-state bonding interfaces into free-standing, easily processable multifunctional nanocomposite systems. This Review will provide a glimpse into this fast-growing research field by illustrating progress achieved in the wet-chemical development of last-generation breeds of all-inorganic heterostructured nanocrystals (HNCs) in asymmetric non-onionlike geometries, inorganic analogues of polyfunctional organic molecules, in which distinct nanoscale crystalline modules are interconnected in hetero-dimer, hetero-oligomer and anisotropic multidomain architectures via epitaxial heterointerfaces of limited extension. The focus will be on modular HNCs entailing at least one magnetic material component combined with semiconductors and/or metals, which hold potential for generating enhanced or unconventional magnetic properties, while offering diversified or even new chemical-physical properties and functional capabilities. The available toolkit of synthetic strategies, all based on the manipulation of seeded-growth techniques, will be described, revisited and critically interpreted within the framework of the currently understood mechanisms of colloidal heteroepitaxy.http://journal.frontiersin.org/Journal/10.3389/fmats.2016.00056/fullmagnetismmultifunctionalityStrainheterostructuresEpitaxySurface energy
collection DOAJ
language English
format Article
sources DOAJ
author Riccardo Scarfiello
Riccardo Scarfiello
Concetta Nobile
P. Davide Cozzoli
P. Davide Cozzoli
P. Davide Cozzoli
spellingShingle Riccardo Scarfiello
Riccardo Scarfiello
Concetta Nobile
P. Davide Cozzoli
P. Davide Cozzoli
P. Davide Cozzoli
Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation Mechanisms
Frontiers in Materials
magnetism
multifunctionality
Strain
heterostructures
Epitaxy
Surface energy
author_facet Riccardo Scarfiello
Riccardo Scarfiello
Concetta Nobile
P. Davide Cozzoli
P. Davide Cozzoli
P. Davide Cozzoli
author_sort Riccardo Scarfiello
title Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation Mechanisms
title_short Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation Mechanisms
title_full Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation Mechanisms
title_fullStr Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation Mechanisms
title_full_unstemmed Colloidal Magnetic Heterostructured Nanocrystals with Asymmetric Topologies: Seeded-Growth Synthetic Routes and Formation Mechanisms
title_sort colloidal magnetic heterostructured nanocrystals with asymmetric topologies: seeded-growth synthetic routes and formation mechanisms
publisher Frontiers Media S.A.
series Frontiers in Materials
issn 2296-8016
publishDate 2016-12-01
description Colloidal inorganic nanocrystals, free-standing crystalline nanostructures generated and processed in solution phase, represent an important class of advanced nanoscale materials owing to the flexibility with which their physical–chemical properties can be controlled through synthetic tailoring of their compositional, structural and geometric features and the versatility with which they can be integrated in technological fields as diverse as optoelectronics, energy storage/ conversion/production, catalysis and biomedicine. In recent years, building upon mechanistic knowledge acquired on the thermodynamic and kinetic processes that underlie nanocrystal evolution in liquid media, synthetic nanochemistry research has made impressive advances, opening new possibilities for the design, creation and mastering of increasingly complex colloidal molecules, in which nanocrystal modules of different materials are clustered together via solid-state bonding interfaces into free-standing, easily processable multifunctional nanocomposite systems. This Review will provide a glimpse into this fast-growing research field by illustrating progress achieved in the wet-chemical development of last-generation breeds of all-inorganic heterostructured nanocrystals (HNCs) in asymmetric non-onionlike geometries, inorganic analogues of polyfunctional organic molecules, in which distinct nanoscale crystalline modules are interconnected in hetero-dimer, hetero-oligomer and anisotropic multidomain architectures via epitaxial heterointerfaces of limited extension. The focus will be on modular HNCs entailing at least one magnetic material component combined with semiconductors and/or metals, which hold potential for generating enhanced or unconventional magnetic properties, while offering diversified or even new chemical-physical properties and functional capabilities. The available toolkit of synthetic strategies, all based on the manipulation of seeded-growth techniques, will be described, revisited and critically interpreted within the framework of the currently understood mechanisms of colloidal heteroepitaxy.
topic magnetism
multifunctionality
Strain
heterostructures
Epitaxy
Surface energy
url http://journal.frontiersin.org/Journal/10.3389/fmats.2016.00056/full
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