Deposition of Ag and Ag-Au nanocrystalline films with tunable conductivity at the water-toluene interface

被引：4
|
作者：
Stansfield, Gemma L. [1 ]
Johnston, Helena M. [1 ]
Baxter, Sean N. [2 ]
Thomas, P. John [2 ]
机构：
[1] Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England
[2] Bangor Univ, Sch Chem, Deniol Rd, Bangor LL57 2UW, Gwynedd, Wales
来源：
RSC ADVANCES | 2018年 / 8卷 / 12期
关键词：
LIQUID-LIQUID INTERFACE; NANOPARTICLE THIN-FILMS; LIQUID/LIQUID INTERFACE; COLLOIDAL NANOCRYSTALS; ELECTRONIC-PROPERTIES; GOLD NANOPARTICLES; HYDROGEN PHOSPHIDE; CHARGE-TRANSPORT; OIL INTERFACE; MONOLAYER;
D O I：
10.1039/c7ra13370g
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Thin films of Au, Ag and Ag-Au alloy nanocrystals extending to areas of several square centimetres are obtained by deposition at the interface of water and toluene. Toluene containing chlorotris(triphenylphosphine)silver(I) and/or chlorotriphenylphosphine gold(I) is reacted with aqueous tetrakishydroxymethylphosphonium chloride to obtain nanocrystalline films adhered to the interfacial region. Alloying was induced by varying the composition of the toluene layer. The composition change results in regular and reproducible variation in the transport characteristics of the films, with the initially metallic deposits turning non-metallic with increased Au content. The films at the interface were transferred to different substrates and characterised using atomic force microscopy, UV-visible spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, scanning and transmission electron microscopy.
引用
收藏
页码：6225 / 6230
页数：6
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