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Aspect ratio controlled synthesis of gold nanorods

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Abstract

Au nanorods were synthesized by using seed-mediated methods. The aspect ratio of the Au nanorods was controlled by temperature and the amount of surfactant used and the rods were characterized by TEM, HRTEM and UV-VIS spectrophotometer. Au nanorods with high aspect ratio could be prepared by decreasing the temperature used and controlling the surfactant concentration. The UV-VIS absorption spectra of the nanorods also showed variations in the aspect ratio. These results suggest that Au nanorods form, via an anisotropic growth mechanism, and that the surfactant plays a role in this process.

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Authors and Affiliations

  1. School of Chemical Engineering, Seoul National University, 151-742, Seoul, Korea

    Sung Koo Kang, Soonwoo Chah, Chang Yeon Yun & Jongheop Yi

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  1. Sung Koo Kang
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  2. Soonwoo Chah
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  3. Chang Yeon Yun
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  4. Jongheop Yi
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Correspondence to Jongheop Yi.

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Kang, S.K., Chah, S., Yun, C.Y. et al. Aspect ratio controlled synthesis of gold nanorods. Korean J. Chem. Eng. 20, 1145–1148 (2003). https://doi.org/10.1007/BF02706952

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  • DOI: https://doi.org/10.1007/BF02706952

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