中国物理B ›› 2008, Vol. 17 ›› Issue (6): 2066-2071.doi: 10.1088/1674-1056/17/6/021

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Anomalous aggregation growth of palladium nanosphere with SPR band in visible range

肖从文1, 申承民1, 杨天中1, 高鸿钧1, 徐梽川2   

  1. (1)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (2)Department of Chemistry, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2007-10-12 修回日期:2007-10-25 出版日期:2008-06-20 发布日期:2008-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60571045 and 60328102) and the National `973' Project of China.

Anomalous aggregation growth of palladium nanosphere with SPR band in visible range

Xiao Cong-Wen(肖从文)a), Shen Cheng-Min(申承民)a), Xu Zhi-Chuan(徐梽川)b), Yang Tian-Zhong(杨天中)a), and Gao Hong-Jun(高鸿钧)a)†   

  1. a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; b Department of Chemistry, Lanzhou University, Lanzhou 730000, China
  • Received:2007-10-12 Revised:2007-10-25 Online:2008-06-20 Published:2008-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60571045 and 60328102) and the National `973' Project of China.

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摘要： The morphology and properties of nanostructures are significantly influenced by the chemical coordination during their growth procedure. Using small molecule N-vinyl pyrolidone as stabilizer, this paper introduces a new strategy for synthesis of palladium nanospheres, which has a novel surface plasmon resonance band in the visible range. An aggregation growth mode was observed in the growth process. More specifically, the growth rate increases with increasing concentration of stabilizer. The absorption in visible region suggests new optical applications for these Pd nanospheres, such as photocatalysis, photothermal heating and surface enhanced Raman scattering.

Abstract: The morphology and properties of nanostructures are significantly influenced by the chemical coordination during their growth procedure. Using small molecule N-vinyl pyrolidone as stabilizer, this paper introduces a new strategy for synthesis of palladium nanospheres, which has a novel surface plasmon resonance band in the visible range. An aggregation growth mode was observed in the growth process. More specifically, the growth rate increases with increasing concentration of stabilizer. The absorption in visible region suggests new optical applications for these Pd nanospheres, such as photocatalysis, photothermal heating and surface enhanced Raman scattering.

Key words: palladium, nanosphere, aggregation growth, surface plasmon resonance

中图分类号:  (Methods of micro- and nanofabrication and processing)

  • 81.16.-c
61.46.-w (Structure of nanoscale materials) 73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)) 78.30.Er (Solid metals and alloys ?) 78.40.Kc (Metals, semimetals, and alloys) 78.67.-n (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)