Synthesis of Magnetic Multifunctional Au-CoSe Nanoparticles through Chemical Vapor Deposition

Abstract

Multifunctional nanoparticles are appealing to material scientists and chemists owing to their wide spread applications. These multifunctional nanoparticles consisting of two or more materials containing distinctively different functionalities can be used effectively in biomedical and catalysis applications. We have synthesized multifunctional dumbbell shaped Au-CoSe nanoparticles on Si substrate through catalyst aided chemical vapor deposition technique. a horizontal furnace equipped with mass flow controller was used to deposit the nanoparticles at 800°C under the steady flow of N2. the technique utilized volatile cobalt acetylacetonate and elemental selenium as precursors while sputter coated Au-Pd (3:2) acts as a catalyst. the nanoparticles contain Au tip ranging 10-25 nm in size while CoSe size ranges from 50-75 nm. CoSe is a ferromagnetic, semiconducting material (band gap=1.53 eV) which is widely used in catalysis and as dilute semiconducting magnet. Detailed magnetic, optical and microscopy characterizations of Au-CoSe nanoparticles will be presented in detail.

Meeting Name

245th ACS National Meeting and Exposition (2013: Apr. 7-11, New Orleans, LA)

Department(s)

Chemistry

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 American Chemical Society (ACS), All rights reserved.

Publication Date

01 Apr 2013

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