中国物理B ›› 2006, Vol. 15 ›› Issue (9): 2080-2086.doi: 10.1088/1009-1963/15/9/030

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Seed-mediated growth of gold nanoparticles using self-assembled monolayer of polystyrene microspheres as nanotemplate arrays

向彦娟1, 刘东方1, 张增星1, 宋礼1, 赵小伟1, 刘利峰1, 罗述东1, 马文君1, 沈俊1, 周维亚1, 周建军1, 王超英1, 王刚1, 吴晓春2   

  1. (1)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Graduate School of the Chinese Academy of Sciences, Beijing 100080, China; (2)National Center for Nanoscience and Nanotechnology, Beijing 100080, China
  • 收稿日期:2006-04-11 修回日期:2006-06-06 出版日期:2006-09-20 发布日期:2006-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10334060) and The State Key Development \linebreak \makebox[1.6mm]{}Program for Basic Research of China (Grant No 2005CB623602).

Seed-mediated growth of gold nanoparticles using self-assembled monolayer of polystyrene microspheres as nanotemplate arrays

Xiang Yan-Juan(向彦娟)a), Wu Xiao-Chun(吴晓春)b), Liu Dong-Fang(刘东方)a), Zhang Zeng-Xing(张增星)a), Song Li(宋礼)a), Zhao Xiao-Wei(赵小伟)a), Liu Li-Feng(刘利峰)a), Luo Shu-Dong(罗述东)a), Ma Wen-Jun(马文君)a), Shen Jun(沈俊)a), Zhou Wei-Ya(周维亚)a), Zhou Jian-Jun(周建军)a), Wang Chao-Ying(王超英)a), and Wang Gang(王刚)a)†   

  1. a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Graduate School of the Chinese Academy of Sciences, Beijing 100080, China; b National Center for Nanoscience and Nanotechnology, Beijing 100080, China
  • Received:2006-04-11 Revised:2006-06-06 Online:2006-09-20 Published:2006-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10334060) and The State Key Development \linebreak \makebox[1.6mm]{}Program for Basic Research of China (Grant No 2005CB623602).

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摘要： Arrays of noble metal nanoparticles show potential applications in (bio-)sensing, optical storage, surface-enhanced spectroscopy, and waveguides. For all such potential devices, controlling the size, morphology, and interparticle spacing of the nanoparticles is very important. Here, we combine seed-mediated growth with nanosphere lithography to study the controllable growth of gold nanoparticles (Au NPs), in which the self-assembly monolayer of polystyrene (PS) on a silicon surface is used to guide the modification of alkanesilanes and the subsequent adsorption of gold seeds; seed-mediated growth is applied to controlling the morphology and size of Au NPs. The size of adsorption region (determining the number of adsorbed gold seeds) is controlled by etching PS microspheres with oxygen plasma or annealing PS microspheres at the glass transition temperature. The size and morphology of the Au NPs are controlled by changing growth conditions. In such a way, we have achieved the dual control of the obtained Au NPs. Preliminary results show that this strategy holds a great promise. This approach can also be extended to a wide range of materials and substrates.

Abstract: Arrays of noble metal nanoparticles show potential applications in (bio-)sensing, optical storage, surface-enhanced spectroscopy, and waveguides. For all such potential devices, controlling the size, morphology, and interparticle spacing of the nanoparticles is very important. Here, we combine seed-mediated growth with nanosphere lithography to study the controllable growth of gold nanoparticles (Au NPs), in which the self-assembly monolayer of polystyrene (PS) on a silicon surface is used to guide the modification of alkanesilanes and the subsequent adsorption of gold seeds; seed-mediated growth is applied to controlling the morphology and size of Au NPs. The size of adsorption region (determining the number of adsorbed gold seeds) is controlled by etching PS microspheres with oxygen plasma or annealing PS microspheres at the glass transition temperature. The size and morphology of the Au NPs are controlled by changing growth conditions. In such a way, we have achieved the dual control of the obtained Au NPs. Preliminary results show that this strategy holds a great promise. This approach can also be extended to a wide range of materials and substrates.

Key words: self-assembling, polystyrene microspheres, gold nanoparticles, seed-mediated growth

中图分类号:  (Wire array Z-pinches)

  • 52.59.Qy
52.25.Os (Emission, absorption, and scattering of electromagnetic radiation ?) 52.35.-g (Waves, oscillations, and instabilities in plasmas and intense beams)