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Title: Use of the liquid-liquid interface for generating ultra-thin nanocrystalline films of metals, chalcogenides and oxides
Authors: Rao, C N R
Kulkarn, G U
Agrawal, Ved Varun
Gautam, Ujjal K
Ghosh, Moumita
Tumkurkar, Usha
Keywords: Nanocrystals
Ultrathin films
Liquid–liquid interface
Issue Date: 15-Sep-2005
Publisher: Elsevier Inc
Citation: Journal of Colloid and Interface Science 289(2), 305-318 (2005)
Abstract: The air–water interface has traditionally been employed to prepare particle assemblies and films of metals and semiconductors. The interface between water and an organic liquid, however, has not been investigated sufficiently for possible use in preparing nanocrystals and thin films of materials. In this article, we demonstrate the use of the liquid–liquid interface as a medium for preparing ultrathin films of metals, chalcogenides and oxides. The method involves the reaction at the interface between a metal-organic compound in the organic layer and an appropriate reagent for reduction, sulfidation, etc. in the aqueous layer. Some of the materials discussed are nanocrystalline films of gold, CuS, CuSe, CuO, and Cu(OH)2 formed at the liquid–liquid interface. The results reported in this article should demonstrate the versatility and potential of the liquid–liquid interface for preparing nanomaterials and ultrathin films and encourage further research in this area.
Description: Restricted Access
Other Identifiers: 0021-9797
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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