Yang Chengliang, Xiang Xiangjun, Zhang Ying, Peng Zenghui, Cao Zhaoliang, Wang Junlin, Xuan Li
State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China.
1] State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China [2] University of the Chinese Academy of Sciences, Beijing 100039, China.
Sci Rep. 2015 Jul 28;5:12355. doi: 10.1038/srep12355.
Large-scale controllable fabrication of highly roughened flower-like silver nanostructures is demonstrated experimentally via electrodeposition in the liquid crystalline phase. Different sizes of silver flowers are fabricated by adjusting the deposition time and the concentration of the silver nitrate solution. The density of the silver flowers in the sample is also controllable in this work. The flower-like silver nanostructures can serve as effective surface-enhanced Raman scattering and surface-enhanced fluorescence substrates because of their local surface plasmon resonance, and they may have applications in photoluminescence and catalysis. This liquid crystalline phase is used as a soft template for fabricating flower-like silver nanostructures for the first time, and this approach is suitable for large-scale uniform fabrication up to several centimetres.
通过在液晶相中进行电沉积，实验证明了可大规模可控地制备高度粗糙的花状银纳米结构。通过调整沉积时间和硝酸银溶液的浓度，可以制备出不同尺寸的银花。在这项工作中，样品中银花的密度也是可控的。由于其局域表面等离子体共振，花状银纳米结构可作为有效的表面增强拉曼散射和表面增强荧光基底，并且它们可能在光致发光和催化方面有应用。这种液晶相首次被用作制备花状银纳米结构的软模板，并且这种方法适用于高达几厘米的大规模均匀制备。
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