Surface plasmon enhanced photoconductance of gold nanoparticle arrays with incorporated alkane linkers

M. A. Mangold; C. Weiss; M. Calame; A. W. Holleitner

doi:10.1063/1.3116148

Surface plasmon enhanced photoconductance of gold nanoparticle arrays with incorporated alkane linkers

M. A. Mangold, C. Weiss, M. Calame, A. W. Holleitner

Chair of Nanotechnology and Nanomaterials

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59 Scopus citations

Abstract

We report on a photoconductive gain effect in two-dimensional arrays of gold nanoparticles (NPs) in which alkane molecules are inserted. The NP arrays are formed by a self-assembly process from alkanethiol-coated gold NPs, and subsequently they are patterned on a Si/ SiO2 chip by a microcontact printing technique. We find that the photoconductance of the arrays is strongly enhanced at the frequency of the surface plasmon of the NPs. We interpret the observation as a bolometric enhancement in the conductance of the NP arrays upon excitation of the surface plasmon resonance.

Original language	English
Article number	161104
Journal	Applied Physics Letters
Volume	94
Issue number	16
DOIs	https://doi.org/10.1063/1.3116148
State	Published - 2009

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10.1063/1.3116148

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abstract = "We report on a photoconductive gain effect in two-dimensional arrays of gold nanoparticles (NPs) in which alkane molecules are inserted. The NP arrays are formed by a self-assembly process from alkanethiol-coated gold NPs, and subsequently they are patterned on a Si/ SiO2 chip by a microcontact printing technique. We find that the photoconductance of the arrays is strongly enhanced at the frequency of the surface plasmon of the NPs. We interpret the observation as a bolometric enhancement in the conductance of the NP arrays upon excitation of the surface plasmon resonance.",

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AB - We report on a photoconductive gain effect in two-dimensional arrays of gold nanoparticles (NPs) in which alkane molecules are inserted. The NP arrays are formed by a self-assembly process from alkanethiol-coated gold NPs, and subsequently they are patterned on a Si/ SiO2 chip by a microcontact printing technique. We find that the photoconductance of the arrays is strongly enhanced at the frequency of the surface plasmon of the NPs. We interpret the observation as a bolometric enhancement in the conductance of the NP arrays upon excitation of the surface plasmon resonance.

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Surface plasmon enhanced photoconductance of gold nanoparticle arrays with incorporated alkane linkers

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