Synthesis of Magnetic Multifunctional Au-CoSe Nanoparticles through Chemical Vapor Deposition
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.
S. Mishra et al., "Synthesis of Magnetic Multifunctional Au-CoSe Nanoparticles through Chemical Vapor Deposition," American Chemical Society (ACS), Jan 2013.
245th ACS National Meeting and Exposition (April 7-11, 2013, New Orleans, Louisiana)
Article - Conference proceedings
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