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Semiconductor Quantum Dots
TLDR
In this paper, the authors present an overview of the background and recent developments in the rapidly growing field of ultrasmall semiconductor microscrystallites, in which the carrier confinement is sufficiently strong to allow only quantized states of the electrons and holes.Abstract:
"Semiconductor Quantum Dots" presents an overview of the background and recent developments in the rapidly growing field of ultrasmall semiconductor microscrystallites, in which the carrier confinement is sufficiently strong to allow only quantized states of the electrons and holes. The main emphasis of this book is the theoretical analysis of the confinement induced modifications of the optical and electronic properties of quantum dots in comparison to extended materials. The book develops the theoretical background material for the analysis of carrier quantum-confinement effects, it introduces different confinement regimes for absolute or center-of-mass motion quantization of the electron-hole-pairs, and it gives an overview of the best approximation schemes for each regime. A detailed discussion of the carrier states in quantum dots is presented, including variational calculations, a configuration interaction approach, and quantum Monte Carlo techniques. Surface polarization instabilities are analyzed which lead to the self-trapping of carriers near the surface of the dots and the influence of spin-orbit coupling on the quantum-confined carrier states is discussed. The linear and nonlinear optical properties of small and large quantum dots are analyzed in detail, including transient optical nonlinearities (photon echo) and two-photon transitions. The influence of the quantum-dot size distribution in many realistic samples is outlined, including the analysis of quantum dot growth laws and universal size distributions. Phonons in quantum dots, as well as the influence of external electric or magnetic fields are discussed. The recent developments dealing with regular systems of quantum dots are reviewed, including a lattice model of quantum dots and quantum dot superlattices.read more
Citations
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Journal ArticleDOI
Synthesis and Properties of Biocompatible Water-Soluble Silica-Coated CdSe/ZnS Semiconductor Quantum Dots†
Daniele Gerion,Fabien Pinaud,Shara C. Williams,Wolfgang J. Parak,Daniela Zanchet,Shimon Weiss,A. Paul Alivisatos +6 more
TL;DR: In this paper, the synthesis of water-soluble semiconductor nanoparticles and their properties are described and discussed and the properties of the resulting nanocrystals are discussed and characterized.
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Vacuum Rabi splitting in semiconductors
TL;DR: In this paper, the progress so far in obtaining true quantum-optical strong coupling effects in semiconductors is reviewed and a nonlinear test for the true quantum limit is proposed.
Journal ArticleDOI
Size dependence of nanostructures: Impact of bond order deficiency
Chang Q. Sun,Chang Q. Sun +1 more
TL;DR: The BOLS correlation mechanism has been initiated and intensively verified as discussed by the authors, which has enabled the tunability of a variety of properties of a nanosolid to be universally reconciled to the effect of bond order deficiency of atoms at sites surrounding defects or near the surface edges of the nano-material.
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Nanomaterials for biosensing applications: a review
TL;DR: This review summarizes in a non-exhaustive way the advantages of nanomaterials by focusing on nano-objects which provide further beneficial properties than “just” an enhanced surface area.
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Raman spectroscopy of optical phonon confinement in nanostructured materials
TL;DR: In this paper, a review of the results on the Raman spectroscopic investigations of optical phonon confinement in nanocrystalline semiconductor and ceramic/dielectric materials, including those in selenium, cadmium sulphide, zinc oxide, thorium oxide, and nano-diamond, is presented.