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Synthesis of monodisperse spherical nanocrystals

Cited 1442 time in Web of Science Cited 1515 time in Scopus
Authors
Park, Jongnam; Joo, Jin; Kwon, Soon Gu; Jang, Youngjin; Hyeon, Taeghwan
Issue Date
2007-06
Citation
Angewandte Chemie - International Edition, Vol.46 No.25, pp.4630-4660
Keywords
goldmagnetic nanocrystalsmonodisperse nanocrystalsnoble metalsquantum dotssemiconductors
Abstract
Much progress has been made over the past ten years on the synthesis of monodisperse spherical nanocrystals. Mechanistic studies have shown that monodisperse nanocrystals are produced when the burst of nucleation that enables separation of the nucleation and growth processes is combined with the subsequent diffusion-controlled growth process through which the crystal size is determined. Several chemical methods have been used to synthesize uniform nanocrystals of metals, metal oxides, and metal chalcogenides. Monodisperse nanocrystals of CdSe, Co, and other materials have been generated in surfactant solution by nucleation induced at high temperature, and subsequent aging and size selection. Monodisperse nanocrystals of many metals and metal oxides, including magnetic ferrites, have been synthesized directly by thermal decomposition of metal-surfactant complexes prepared from the metal precursors and surfactants. Nonhydrolytic sol-gel reactions have been used to synthesize various transition-metal-oxide nanocrystals. Monodisperse gold nanocrystals have been obtained from poly disperse samples by digestive-ripening processes. Uniform-sized nanocrystals of gold, silver, platinum, and palladium have been synthesized by polyol processes in which metal salts are reduced by alcohols in the presence of appropriate surfactants. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
ISSN
1433-7851
URI
http://hdl.handle.net/10371/165878
DOI
https://doi.org/10.1002/anie.200603148
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Chemical Convergence for Energy and Environment (에너지환경 화학융합기술전공)Journal Papers (저널논문_에너지환경 화학융합기술전공)
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