Agrawal Ved Varun, Mahalakshmi P, Kulkarni G U, Rao C N R
Chemistry and Physics of Material Unit, Jawaharlal Nehru Centre for Advance Scientific Research, Jakkur P.O., Bangalore 560 064, India.
Langmuir. 2006 Feb 14;22(4):1846-51. doi: 10.1021/la052595n.
By the reaction of the appropriate organometallic precursors and tetrakishydroxymethyl phosphonium chloride (THPC) at the toluene-water interface, we have prepared nanocrystalline films of Au-Ag and Au-Cu alloys with a range of compositions. The films have been characterized by X-ray diffraction, electron microscopy, optical spectroscopy, and other techniques, besides compositional analysis. The particle size of the nanocrystals in the films varies with the composition. The surface plasmon band of the alloy films as well as of the organosols obtained by the disintegration of the films by the addition of an alkanethiol show the expected composition dependence. It has been possible to prepare the nanocrystalline films of a ternary Au-Ag-Cu alloy.
通过合适的有机金属前驱体与四羟甲基氯化鏻（THPC）在甲苯 - 水界面的反应，我们制备了一系列组成的金 - 银和金 - 铜合金的纳米晶薄膜。除了成分分析外，这些薄膜还通过X射线衍射、电子显微镜、光谱学和其他技术进行了表征。薄膜中纳米晶体的粒径随组成而变化。合金薄膜以及通过添加链烷硫醇使薄膜分解得到的有机溶胶的表面等离子体带显示出预期的组成依赖性。已经能够制备三元金 - 银 - 铜合金的纳米晶薄膜。
