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Self-organization of CdSe nanocrystallites into three-dimensional quantum dot superlattices

Christopher B. Murray, +2 more
- 01 Jan 2005 - 
- Vol. 180, pp 64-67
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TLDR
In this paper, the self-organization of CdSe nanocrystallites into three-dimensional semiconductor quantum dot superiattices (colloidal crystals) is demonstrated.
Abstract
The self-organization of CdSe nanocrystallites into three-dimensional semiconductor quantum dot superiattices (colloidal crystals) is demonstrated. The size and spacing of the dots within the superlattice are controlled with near atomic precision. This control is a result of synthetic advances that provide CdSe nanocrystallites that are monodisperse within the limit of atomic roughness. The methodology is not limited to semiconductor quantum dots but provides general procedures for the preparation and characterization of ordered structures of nanocrystallites from a variety of materials.

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Citations
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Quantum Confined Stark Effect in Single CdSe Nanocrystallite Quantum Dots

TL;DR: The quantum-confined Stark effect in single cadmium selenide (CdSe) nanocrystallite quantum dots was studied, suggesting the potential use of these dots in electro-optic modulation devices.
Journal Article

Crystal structure and optical properties of Cd32S14(SC6H5)36-DMF4, a cluster with a 15 angstrom CdS core

TL;DR: In this article, the solid Cd 10 S 4 (SC 6 H 5 ) 12 from a solution of pyridine and N,N-di-methytformamide (DMF) results in the formation of the cluster Cd 32 S 1 4(SC 6H 5 ) 36 -DMF 4 as pale yellow cubes.
Dissertation

Exploring excitations and vibrations in semiconductor nanocrystals through fluorescence and Raman spectroscopy

TL;DR: In this paper, the authors used Förster theory to understand the photoluminescence and vibrational characteristics of QDs, including spectrally-resolved time-correlated single photon counting measurements to understand QD photon lifetime as a function of emission wavelength and low-frequency Raman spectroscopy to measure acoustic phonons in nanocrystal solids.

Structure prediction of self-assembled nanoparticle superlattices

TL;DR: In this article, the authors discuss the importance of the role of the human voice in the decision process and propose a method to improve the quality of the decision making process of the board.
References
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Journal ArticleDOI

Size-dependent properties of ZnmSn clusters: A density-functional tight-binding study

TL;DR: Theoretical calculations on structural and electronic properties of ligand-free Zn(n)S( n) clusters as a function of size for both zinc-blende and wurtzite-derived ZnS clusters focus on the variation of radial distribution function, Mulliken populations, electronic energy levels, band gap, and stability as a functions of size.
Journal ArticleDOI

Three-Dimensional Self-Assembly of Chalcopyrite Copper Indium Diselenide Nanocrystals into Oriented Films

TL;DR: These nanocrystals are solution-processable, monodisperse tetragonal bipyramids that exhibit photoconductivity and self-assemble into crystallographically oriented thin films that can be adjusted from copper-rich to indium-rich with reaction time.
Journal ArticleDOI

Scanning probe microscopy and spectroscopy of colloidal semiconductor nanocrystals and assembled structures

TL;DR: The confined electronic orbitals and related energy levels of individual semiconductor quantum dots have been measured by means of scanning tunneling microscopy and spectroscopy, and the results are compared with those on comparable solid-state ones.
Journal ArticleDOI

Monodisperse BaF2 Nanocrystals: Phases, Size Transitions, and Self‐Assembly

TL;DR: It is reported that the nucleation and growth of both cubicand orthorhombic-phase BaF2 crystals are under the control of nonequilibrium kinetics, whereas the phase transition of BaF1 demonstrates that cubic-phaseBaF2 is thermodynamically stable and may shed light on the facile fabrication of various nanocrystals with controllable size and phase.
Journal ArticleDOI

Hydrazine-mediated construction of nanocrystal self-assembly materials.

TL;DR: NC self-assembly materials are produced and applied to design high performance white light-emitting diode (WLED) from multiple NC components with advantages that allow the fabrication of NC-based WLED with high color rendering index, high luminous efficacy, and controllable color temperature.
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