Hollow metal nanorods with tunable dimensions, porosity, and photonic properties.
Hollow metal nanorods with tunable dimensions, porosity, and photonic properties.
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DOI：
10.1021/nn900099t
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发表时间：
2009-05
期刊：
影响因子：
17.1
通讯作者：
Nathanael R. Sieb;N. Wu;E. Majidi;Richa Kukreja;N. Branda;B. Gates
中科院分区：
文献类型：
--
作者：
Nathanael R. Sieb;N. Wu;E. Majidi;Richa Kukreja;N. Branda;B. Gates
合成设计型纳米结构的一个重要方面是微调其尺寸、组成和表面积。这些参数通常决定了纳米颗粒相对于它们的块状对应物的独特性质。本文报道了尺寸、孔隙率和光子性能可控的多孔性金属纳米棒的合成。每个纳米结构的生长是由具有明确定义的、可调节的尺寸的银多晶牺牲模板来指导的。这种模板可以被选择性地刻蚀以分离出多孔中空纳米结构。这种纳米结构的孔隙率、组成和光子特性可以通过控制反应条件来调节。
An important aspect of synthesizing designer nanostructures is fine-tuning their size, composition, and surface area. These parameters often dictate the unique properties of nanoparticles relative to their bulk counterpart. This paper reports the synthesis of porous metal nanorods with well-controlled dimensions, porosity, and photonic properties. The growth of each nanostructure is directed by a polycrystalline sacrificial template of silver with well-defined, tunable dimensions. This template can be selectively etched to isolate a porous hollow nanostructure. The porosity, composition, and photonic characteristics of this nanostructure are adjustable by controlling the reaction conditions.