Conversion Reactions of Cadmium Chalcogenide Nanocrystal Precursors

被引：188

作者：

Garcia-Rodriguez, Raul ^{[1
]}

Hendricks, Mark P. ^{[2
]}

Cossairt, Brandi M. ^{[3
]}

Liu, Haitao ^{[1
]}

Owen, Jonathan S. ^{[2
]}

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

[2] Columbia Univ, Dept Chem, New York, NY 10027 USA

[3] Univ Washington, Dept Chem, Seattle, WA 98195 USA

来源：

CHEMISTRY OF MATERIALS | 2013年 / 25卷 / 08期

基金：

美国国家科学基金会;

关键词：

II-VI; quantum dot; precursor conversion; cadmium chalcogenide; mechanism; ONE-POT SYNTHESIS; LOW-TEMPERATURE SYNTHESIS; PHOSPHINE-FREE SYNTHESIS; CORE-SHELL NANOCRYSTALS; SIZED CDSE NANOCRYSTALS; HIGH-QUALITY CDTE; QUANTUM DOTS; HIGHLY LUMINESCENT; OPTICAL-PROPERTIES; CORE/SHELL NANOCRYSTALS;

D O I：

10.1021/cm3035642

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We survey the chemical reactions between common precursors used in the synthesis of metal chalcogenide nano crystals and outline how they affect the mechanism and kinetics of nanocrystal growth. We emphasize syntheses of cadmium selenide and cadmium sulfide where a variety of metal and chalcogenide precursors have been explored, though this is supplemented by studies of zinc and lead chalcogenide formation where appropriate. This review is organized into three sections, highlighting kinetics, metal precursors, and chalcogenide precursors, respectively. Section I is dedicated to the role of precursor conversion as a source of monomers and the importance of the supply rate on nanocrystal nucleation and growth. Section II describes the structure and reactivity of cadmium carboxylates, phosphonates, and chalcogenolates. Section III describes the reaction chemistry of commonly employed chalcogenide precursors and the mechanisms by which they react with metal precursors.

引用

页码：1233 / 1249

页数：17

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