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Purification Chemical Structure Electrical Property Relationship in Gold Nanoparticle Liquids



Robert I. MacCuspie, Andrea M. Elsen, Steve J. Diamanti, Steve T. Patton, Igor Altfeder, J. D. Jacobs, Andrey A. Voevodin, Richard A. Vaia


Macroscopic assemblies of nanoparticles are a new class of materials that exhibit unique properties compared to both bulk and isolated nanoparticle states. To more accurately probe the structure-property relationships of these materials, this report proposes a synthetic scheme which affords a high degree of control over the purity of each intermediate product. Rigorous purification and characterization at each step are key elements of this scheme, thereby increasing final product reproducibility for a wide range of amine-containing surface molecules. A range of tertiary and quaternary amines were used to successfully synthesize nanoparticle liquids from a range of gold nanoparticle starting materials, sized from 6 nm to 20 nm and initially coated with either citrate or dodecanethiol. The application of improved device performance in a RF-MEMS relay-switch was demonstrated by lifetime improvement of at least two orders of magnitude greater number of cycles before device failure.
Applied Organometallic Chemistry


Nanoparticle Liquids, Gold Nanoparticles, RF-MEMS Switch


MacCuspie, R. , Elsen, A. , Diamanti, S. , Patton, S. , Altfeder, I. , Jacobs, J. , Voevodin, A. and Vaia, R. (2010), Purification Chemical Structure Electrical Property Relationship in Gold Nanoparticle Liquids, Applied Organometallic Chemistry, [online], (Accessed July 18, 2024)


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Created August 1, 2010, Updated February 19, 2017