University of Limerick Institutional Repository
Evolution of pseudo-spherical silicon nanocrystals to tetrahedra, mediated by phosphonic acid surfactants.
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| dc.contributor.author | Barrett, Christopher A. | |
| dc.contributor.author | Dickinson, Calum | |
| dc.contributor.author | Ahmed, Shafaat | |
| dc.contributor.author | Hantschel, Thomas | |
| dc.contributor.author | Arstila, Kai | |
| dc.contributor.author | Ryan, Kevin M. | |
| dc.date.accessioned | 2012-02-20T16:53:31Z | |
| dc.date.available | 2012-02-20T16:53:31Z | |
| dc.date.issued | 2009 | |
| dc.identifier.uri | http://hdl.handle.net/10344/2023 | |
| dc.description | peer-reviewed | en_US |
| dc.description.abstract | Silicon nanocrystals were synthesised at high temperatures and high pressures by the thermolysis of diphenylsilane using a combination of supercritical carbon dioxide and phosphonic acid surfactants. Size and shape evolution from pseudo-spherical silicon nanocrystals to well faceted tetrahedral-shaped silicon crystals with edge lengths in the range of 30-400 nm were observed with sequentially decreasing surfactant chain lenghts. The silicon nanocrystals were characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), photoluminescence (PL), scanning electron microscopy (SEM) and Raman scattering spectroscopy. | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | IOP Science | en_US |
| dc.relation.ispartofseries | Nanotechnology;20,275605 | |
| dc.relation.uri | http://dx.doi.org/10.1088/0957-4484/20/27/275605 | |
| dc.relation.uri | http://dx.doi.org/10.1080/03323310903522677 | |
| dc.subject | nanocrystals | en_US |
| dc.subject | carbon dioxide | en_US |
| dc.title | Evolution of pseudo-spherical silicon nanocrystals to tetrahedra, mediated by phosphonic acid surfactants. | en_US |
| dc.type | Article | en_US |
| dc.type.supercollection | all_ul_research | en_US |
| dc.type.supercollection | ul_published_reviewed | en_US |
| dc.type.restriction | none | en |
| dc.contributor.sponsor | SFI | |
| dc.relation.projectid | 06/IN,1/I85 | |
| dc.internal.authorcontactother | kevin.m.ryan@ul.ie |
