Effect of shape,height,and interparticle spacing of Au nanoparticles on the sensing performance of Au nanoparticle array |
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| Authors: | Junhua Li Qiang Kan Chunxia Wang Hongda Chen State Key Laboratory on Integrated Optoelectronics |
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| Institution: | Junhua Li,Qiang Kan,Chunxia Wang,and Hongda Chen State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China |
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| Abstract: | The effect of shape,height,and interparticle spacing of Au nanoparticles(NPs) on the sensing performance of Au NP array is systematically investigated. Lengthening the major axis of elliptical NPs with the minor axis kept constant will cause the redshift of the local surface plasmon(LSP) resonance mode,enhance the sensitivity,and widen the resonance peaks. Larger height corresponds to smaller LSP resonance wavelength and narrower resonance peak. With each NP size unchanged,larger interparticle spacing corre... |
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