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ABSTRACT
Semiconductor nanocrystals have attracted much research interest for more than thirty years. These inorganic particles, capped by a layer of organic molecules separating them from each other, are a particularly good illustration of the modification of physical properties induced by the quantum confinement effect when size is lowered to the nanometre range. At the same time, progress in chemical synthesis enables the precise control of size and composition of nanocrystals, and hence of their optical properties, paving the way for various applications. This article gives an overview of the basic properties characterizing semiconductor nanocrystals, their synthesis methods, and their main applications.
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Read the articleAUTHORS
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Peter REISS: Doctor, CEA researcher ([email protected])
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Frédéric CHANDEZON: Engineer, doctor, CEA researcher ([email protected]) - Molecular, Organic and Hybrid Electronics Laboratory, UMR 5819 SPrAM (CEA-CNRS-UJF) - Université Grenoble Alpes, Inac-SPrAM, F-38000 Grenoble, France - CEA, Inac-SPrAM, F-38000 Grenoble, France - CNRS, SPrAM, F-38000 Grenoble, France
INTRODUCTION
semiconductor nanocrystals have been the subject of intense research interest for over thirty years. These inorganic particles, covered with a layer of organic molecules separating them from each other, are a particularly good example of how physical properties can be changed by reducing size to the nanometer range through the quantum confinement effect. At the same time, thanks to advances in chemical synthesis, the size and composition of nanocrystals, and consequently their optical properties, can be precisely controlled, paving the way for a wide range of applications. This article provides an overview of the most striking properties of semiconductor nanocrystals, their synthesis methods and their main applications.
Semiconductor nanocrystals attract a large research interest for more than thirty years now. These inorganic particles, capped by a layer of organic molecules separating them, illustrate particularly well the modification of physical properties induced by the quantum confinement effect when the size is decreased to the nanometre range. At the same time, progress in chemical synthesis enables the precise control of nanocrystals' size and composition and hence of their optical properties, paving the way to various applications. This article gives an overview of the basic properties characterizing semiconductor nanocrystals, of their synthesis methods of their main applications.
photo-/electroluminescence, optical imaging in biology, photovoltaics, lighting/display, biolabeling, solar cells, chemical synthesis, optical properties, functionalization, applications.
photo-/electroluminescence, optical imaging in biology, photovoltaics, lighting/displays, biological labeling, solar cells, chemical synthesis, optical properties, functionalisation, applications.
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KEYWORDS
applications | solar cells | functionalisation | photo-/electroluminescence | lighting/displays | biological labeling | chemical synthesis | optical properties
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Optics and photonics
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Fluorescent semiconductor nanocrystals. Nanoparticles with multiple applications
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Conference: "NaNaX – Nanoscience with Nanocrystals" takes place every two years in different European countries (even-numbered years).
Conference: "30 years colloidal quantum dots" May 26-28, 2014, Paris.
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Molecular, Organic and Hybrid Electronics Laboratory, INAC-SPrAM (UMR 5819 CEA-CNRS-UJF), CEA Grenoble, 17, rue des Martyrs, 38054 Grenoble cedex 9
( http://inac.cea.fr/spram/NanoX/ )
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