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Fluorescence Spectrum Characteristics of Gold Nanorods |
| ZHU Jian;WANG Yong-Chang;YAN Shi-Nong |
| Institute of Modern Physics, School of Science, Xi’an Jiaotong University, Xi’an 710049 |
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| Cite this article: |
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ZHU Jian, WANG Yong-Chang, YAN Shi-Nong 2004 Chin. Phys. Lett. 21 559-561 |
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Abstract Aqueous solutions containing a high yield of suspended gold nanorods with mean aspect ratio 2.5 have been synthesized via an electrochemical method. The fluorescence emission peaks fixed at 370 nm and 670 nm are due to the local field enhancement via coupling to the transverse and longitudinal surface plasmon resonance. The quasi-static calculation results indicate that with the increasing aspect ratio of the nanorods, the longer wavelength emission peak decreases and red shifts, whereas the shorter wavelength emission peak blue shifts slightly.
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| Keywords:
78.67.Bf
73.20.Mf
36.40.Gk
78.66.Bz
73.20.Mf
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Published: 01 March 2004
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| PACS: |
78.67.Bf
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(Nanocrystals, nanoparticles, and nanoclusters)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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36.40.Gk
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(Plasma and collective effects in clusters)
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78.66.Bz
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(Metals and metallic alloys)
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73.20.Mf
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(Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))
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