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Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures

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dc.contributor.author Scriba, Manfred R
dc.contributor.author Britton, DT
dc.contributor.author Arendse, C
dc.contributor.author van Staden, MJ
dc.contributor.author Härting, M
dc.date.accessioned 2012-04-11T08:39:06Z
dc.date.available 2012-04-11T08:39:06Z
dc.date.issued 2009-04
dc.identifier.citation Scriba, MR, Britton, DT, Arendse, C, Van Staden, MJ and Härting, M. 2009. Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures. Thin Solid Films, vol. 517(12), pp 3484-3487 en_US
dc.identifier.issn 0040-6090
dc.identifier.uri http://www.sciencedirect.com/science/article/pii/S0040609009001047
dc.identifier.uri http://hdl.handle.net/10204/5728
dc.description Copyright: 2009 Elsevier. This is an ABSTRACT ONLY. en_US
dc.description.abstract The effect of pressure on the structure and composition of silicon nanoparticles synthesized by hot wire thermal catalytic pyrolysis (HW-TCP) of pure silane has been investigated. Light brown powders were produced at silane pressures of 10 and 50 mbar, at a flow rate of 50 sccm, using a tungsten filament at temperatures of 1900 °C and 1800 °C respectively. As determined by transmission electron microscopy and X-ray diffraction, the particles produced at lower pressure have sizes around 10 nm, whereas those produced at higher pressure are typically 50 nm. High resolution transmission electron microscopy (HR-TEM) shows a surface layer of between 2 and 5 nm thickness, which was confirmed by X-ray photoemission spectroscopy to be an oxide shell. Both X-ray diffraction and HR-TEM confirm a high degree of crystallinity in both sets of particles, with Raman spectroscopy indicating an increase in crystalline fraction with synthesis pressure. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Workflow;8763
dc.subject Thermal catalytic pyrolysis en_US
dc.subject Silicon nanoparticles en_US
dc.subject X-ray diffraction en_US
dc.subject X-ray photoelectron spectroscopy en_US
dc.subject Raman spectroscopy en_US
dc.subject Transmission electron microscopy en_US
dc.title Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures en_US
dc.type Article en_US
dc.identifier.apacitation Scriba, M. R., Britton, D., Arendse, C., van Staden, M., & Härting, M. (2009). Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures. http://hdl.handle.net/10204/5728 en_ZA
dc.identifier.chicagocitation Scriba, Manfred R, DT Britton, C Arendse, MJ van Staden, and M Härting "Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures." (2009) http://hdl.handle.net/10204/5728 en_ZA
dc.identifier.vancouvercitation Scriba MR, Britton D, Arendse C, van Staden M, Härting M. Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures. 2009; http://hdl.handle.net/10204/5728. en_ZA
dc.identifier.ris TY - Article AU - Scriba, Manfred R AU - Britton, DT AU - Arendse, C AU - van Staden, MJ AU - Härting, M AB - The effect of pressure on the structure and composition of silicon nanoparticles synthesized by hot wire thermal catalytic pyrolysis (HW-TCP) of pure silane has been investigated. Light brown powders were produced at silane pressures of 10 and 50 mbar, at a flow rate of 50 sccm, using a tungsten filament at temperatures of 1900 °C and 1800 °C respectively. As determined by transmission electron microscopy and X-ray diffraction, the particles produced at lower pressure have sizes around 10 nm, whereas those produced at higher pressure are typically 50 nm. High resolution transmission electron microscopy (HR-TEM) shows a surface layer of between 2 and 5 nm thickness, which was confirmed by X-ray photoemission spectroscopy to be an oxide shell. Both X-ray diffraction and HR-TEM confirm a high degree of crystallinity in both sets of particles, with Raman spectroscopy indicating an increase in crystalline fraction with synthesis pressure. DA - 2009-04 DB - ResearchSpace DP - CSIR KW - Thermal catalytic pyrolysis KW - Silicon nanoparticles KW - X-ray diffraction KW - X-ray photoelectron spectroscopy KW - Raman spectroscopy KW - Transmission electron microscopy LK - https://researchspace.csir.co.za PY - 2009 SM - 0040-6090 T1 - Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures TI - Composition and crystallinity of silicon nanoparticles synthesised by hot wire thermal catalytic pyrolysis at different pressures UR - http://hdl.handle.net/10204/5728 ER - en_ZA


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