Compositional characterisation of metallurgical grade silicon and porous silicon nanosponge particles

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dc.contributor.author Chadwick, Edward G.
dc.contributor.author Mogili, N. V. V.
dc.contributor.author O'Dwyer, Colm
dc.contributor.author Moore, Jimmy D.
dc.contributor.author Fletcher, John S.
dc.contributor.author Laffir, Fathima
dc.contributor.author Armstrong, Gordon
dc.contributor.author Tanner, David A.
dc.date.accessioned 2018-05-16T15:53:13Z
dc.date.available 2018-05-16T15:53:13Z
dc.date.issued 2013-08-02
dc.identifier.citation Chadwick, E. G., Mogili, N. V. V., O'Dwyer, C., Moore, J. D., Fletcher, J. S., Laffir, F., Armstrong, G. and Tanner, D. A. (2013) 'Compositional characterisation of metallurgical grade silicon and porous silicon nanosponge particles', RSC Advances, 3(42), pp. 19393-19402. doi: 10.1039/C3RA42205D en
dc.identifier.volume 3 en
dc.identifier.startpage 19393 en
dc.identifier.endpage 19402 en
dc.identifier.issn 2046-2069
dc.identifier.uri http://hdl.handle.net/10468/6134
dc.identifier.doi 10.1039/C3RA42205D
dc.description.abstract Porous silicon is generally achieved through electro-chemical etching or chemical etching of bulk silicon in hydrofluoric acid based solutions. The work presented here explores the effect of a chemical etching process on a metallurgical grade silicon powder. It is found that the metallurgical grade silicon particles contain surface bound impurities that induce a porous structure formation upon reaction with the chemical etchant applied. The correlation between the resultant porous structure formed due to the material composition is examined in detail. The elemental composition is determined using a combination of X-ray Photoelectron Spectroscopy and Time of Flight Secondary Ion Mass Spectroscopy. The porous structure is analysed using Transmission Electron Microscopy and Scanning Electron Microscopy. Three samples of the silicon particles analysed for this study include an un-etched bulk silicon powder sample and two samples of chemically etched powder. Pore formation within the particles is found to be dependent on the presence, dispersion, and local concentration of surface bound impurities within the starting powder. en
dc.description.sponsorship Enterprise Ireland, Vesta Sciences (EI IP 2007 0380 Vesta/UL); Higher Education Authority (PRTLI cycle 4) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Royal Society of Chemistry (RSC) en
dc.relation.uri http://pubs.rsc.org/en/content/articlepdf/2013/ra/c3ra42205d
dc.rights © Royal Society of Chemistry 2013 en
dc.subject Porous silicon en
dc.subject Metallurgical grade porous silicon en
dc.subject Nanosponge en
dc.title Compositional characterisation of metallurgical grade silicon and porous silicon nanosponge particles en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Colm O'Dwyer, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: c.odwyer@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-05-15T23:21:31Z
dc.description.version Accepted Version en
dc.internal.rssid 234739091
dc.contributor.funder Enterprise Ireland en
dc.contributor.funder Higher Education Authority en
dc.contributor.funder Vesta Sciences, Inc., United States en
dc.description.status Peer reviewed en
dc.identifier.journaltitle RSC Advances en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en


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