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Publication Citation: Purification Chemical Structure Electrical Property Relationship in Gold Nanoparticle Liquids

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Author(s): Robert I. MacCuspie; Andrea M. Elsen; Steve J. Diamanti; Steve T. Patton; Igor Altfeder; J. D. Jacobs; Andrey A. Voevodin; Richard A. Vaia;
Title: Purification Chemical Structure Electrical Property Relationship in Gold Nanoparticle Liquids
Published: August 01, 2010
Abstract: 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.
Citation: Applied Organometallic Chemistry
Volume: 24
Issue: 8
Pages: pp. 590 - 599
Keywords: Nanoparticle Liquids; Gold Nanoparticles; RF-MEMS Switch;
Research Areas: Nanoelectronics and Nanoscale Electronics, Nanoparticles, Characterization, Nanometrology, and Nanoscale Measurements
PDF version: PDF Document Click here to retrieve PDF version of paper (335KB)