Losic Dusan, Shapter Joe G, Mitchell James G, Voelcker Nicolas H
School of Chemistry, Physics and Earth Sciences, Flinders University, GPO Box 2100, Adelaide 5001, Australia. School of Biological Sciences, Flinders University, GPO Box 2100, Adelaide 5001, Australia.
Nanotechnology. 2005 Oct;16(10):2275-81. doi: 10.1088/0957-4484/16/10/049. Epub 2005 Aug 26.
A simple procedure for fabrication of gold films with nanorod arrays is described. The method is based on thermal evaporation of gold onto a porous alumina (PA) membrane used as a template. The gold films were obtained after removing the template and characterized using scanning electron microscopy, atomic force microscopy and ultraviolet-visible spectrophotometry. The prepared gold films are composed of arrays of sharp (<20 nm at apex) rod-shaped gold nanostructures. These structures closely follow the organization and distribution of pores of the PA template. The length of the gold nanostructures is estimated to range from 300 nm to more than 1000 nm. It was found that their length is influenced by the size of the pores in the PA and the temperature of the PA during gold evaporation. Spectrophotometric characterization shows that the prepared gold films exhibit a surface plasmon resonance absorption peak located between 525 and 540 nm.
描述了一种制备具有纳米棒阵列的金膜的简单方法。该方法基于将金热蒸发到用作模板的多孔氧化铝（PA）膜上。去除模板后获得金膜，并使用扫描电子显微镜、原子力显微镜和紫外可见分光光度法对其进行表征。制备的金膜由尖锐的（顶端小于20nm）棒状金纳米结构阵列组成。这些结构紧密遵循PA模板的孔隙组织和分布。金纳米结构的长度估计在300nm至1000nm以上。发现它们的长度受PA中金蒸发过程中孔隙尺寸和PA温度的影响。分光光度表征表明，制备的金膜在525至540nm之间呈现表面等离子体共振吸收峰。
