Authors: Shaojuan Luo Dongning Yang Jiyun Feng Ka Ming Ng
Publish Date: 2014/07/25
Volume: 16, Issue: 8, Pages: 2561-
Abstract
Indium–tin stearate precursor was successfully synthesized by a direct reaction between metals indium and tin and molten stearic acid under a nitrogen atmosphere at 260 °C for 3 h for the first time Nearly monodisperse ~7 nm indium tin oxide ITO nanocrystals without any agglomeration were efficiently synthesized by pyrolysis of the assynthesized precursors without using additional organic solvents under different conditions It was found that both pyrolysis temperature and Sn doping level significantly influenced the particle size and size distribution of the ITO nanocrystals A lower pyrolysis temperature and a higher Sn doping level resulted in a smaller particle size of the ITO nanocrystals Addition of 1octadecene solvent in the pyrolysis reaction could lead to a narrow particle size distribution of the ITO nanocrystals In addition all the assynthesized ITO nanocrystals could be dispersed homogeneously in nonpolar solvents such as nhexane and chloroform without using surfactants forming optically clear solutions which were used to prepare ITO/PVB nanocomposite film as interlayer for making laminated glass in solar control glazingThe authors gratefully acknowledge the financial support from the University Grants Council of the Hong Kong Government Also the technical support of the RaithHKUST Nanotechnology Laboratory project no SEG HKUST08 at MCPF of HKUST is appreciated
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