Synthesis and conductance measurement of periodic arrays of gold nanoparticles

We report a formation method and an electrical characterization of aligned arrays of Au nanoparticles ( ∼ 20 - 40   nm ) . We synthesized the structure by immersing a substrate vertically into a solvent with nanoparticle and letting the solvent evaporate. The periodicity of the arrays has been contr...

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Bibliographic Details
Published in:Applied physics letters 2008-10, Vol.93 (16), p.163103-163103-3
Main Authors: Kakefuda, Y., Narita, K., Komeda, T., Yoshimoto, S., Hasegawa, S.
Format: Article
Language:English
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Summary:We report a formation method and an electrical characterization of aligned arrays of Au nanoparticles ( ∼ 20 - 40   nm ) . We synthesized the structure by immersing a substrate vertically into a solvent with nanoparticle and letting the solvent evaporate. The periodicity of the arrays has been controlled in 10 - 40   μ m range by tuning the evaporation rate of solvent. The resistivity shows a drastic decrease ( ∼ 10 − 4 ) when annealed at ∼ 170 ° C . While it is considerably due to a breakdown of ligands surrounding the Au particles, the large change in conductivity should be used for sensors to examine the interface molecules between Au nanoparticles.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3001938