Preparation and Characterization of Monodisperse PbSe Semiconductor Nanocrystals in a Noncoordinating Solvent

Preparation and Characterization of Monodisperse PbSe Semiconductor Nanocrystals in a Noncoordinating Solvent

Spherical PbSe semiconductor nanocrystals with near-infrared absorption of 1100−2520 nm (corresponding to diameters of 3−13 nm) were synthesized in a noncoordinating solvent (1-octadecene). The as-prepared PbSe semiconductor nanocrystals have very narrow size distributions (σ ≅ 5−7%) without any pos...

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Veröffentlicht in:Chemistry of materials 2004-08, Vol.16 (17), p.3318-3322
Hauptverfasser: Yu, William W, Falkner, Joshua C, Shih, Bertram S, Colvin, Vicki L
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Sprache:eng
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Applied sciences
Chemistry
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
General and physical chemistry
Physicochemistry of polymers
Physics
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creator Yu, William W
Falkner, Joshua C
Shih, Bertram S
Colvin, Vicki L
description Spherical PbSe semiconductor nanocrystals with near-infrared absorption of 1100−2520 nm (corresponding to diameters of 3−13 nm) were synthesized in a noncoordinating solvent (1-octadecene). The as-prepared PbSe semiconductor nanocrystals have very narrow size distributions (σ ≅ 5−7%) without any postsynthetic size selection. High-resolution transmission electron microscopy (TEM), electron diffraction, and X-ray diffraction show that the nanocrystalline particles are single domains of rock-salt PbSe. A water-soluble form of these materials was generated through simple surface treatments.
doi_str_mv 10.1021/cm049476y
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The as-prepared PbSe semiconductor nanocrystals have very narrow size distributions (σ ≅ 5−7%) without any postsynthetic size selection. High-resolution transmission electron microscopy (TEM), electron diffraction, and X-ray diffraction show that the nanocrystalline particles are single domains of rock-salt PbSe. 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subjects Applied sciences
Chemistry
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
General and physical chemistry
Physicochemistry of polymers
Physics
title Preparation and Characterization of Monodisperse PbSe Semiconductor Nanocrystals in a Noncoordinating Solvent
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