dc.contributor.author | Sletnes, Malin | |
dc.contributor.author | Jerome, Maria | |
dc.contributor.author | Grande, Tor | |
dc.contributor.author | Lindgren, Mikael | |
dc.contributor.author | Einarsrud, Mari-Ann | |
dc.date.accessioned | 2017-10-02T14:37:58Z | |
dc.date.available | 2017-10-02T14:37:58Z | |
dc.date.created | 2014-03-31T14:00:47Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Dalton Transactions. 2014, 43 (5), 2127-2133. | nb_NO |
dc.identifier.issn | 1477-9226 | |
dc.identifier.uri | http://hdl.handle.net/11250/2457842 | |
dc.description.abstract | Blue-green luminescent octoxy capped Si nanoparticles were synthesized via homogeneous reduction of SiCl4 with the crown ether alkalide K+(15-crown-5)2K− in tetrahydrofuran. The Si nanoparticles were characterized with respect to size, crystal structure, morphology, surface termination, optical properties and stability. Si diamond structure nanoparticles with narrow size distributions, and average diameters ranging from 3 to 7 nm were obtained. A finite-size effect on the lattice dimensions was observed, in the form of an expansion of the [220] lattice planes of smaller Si nanoparticles. The concentration of SiCl4 was found to be the most important parameter governing the particle size and size distribution. The octoxy capped particles were stable under an ambient atmosphere for at least one month, but exposure to water made them prone to oxidation. An average radiative recombination lifetime of 8.8 ns was measured for the blue-green luminescence. The luminescence appears to originate from surface defects, rather than from quantum confinement. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Royal Society of Chemistry | nb_NO |
dc.title | Octoxy capped Si nanoparticles synthesized by homogeneous reduction of SiCl4 with crown ether alkalide | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 2127-2133 | nb_NO |
dc.source.volume | 43 | nb_NO |
dc.source.journal | Dalton Transactions | nb_NO |
dc.source.issue | 5 | nb_NO |
dc.identifier.doi | 10.1039/c3dt52691g | |
dc.identifier.cristin | 1125983 | |
dc.description.localcode | This journal is © The Royal Society of Chemistry 2014. This is the authors accepted and refereed manuscript to the article. | nb_NO |
cristin.unitcode | 194,66,35,0 | |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for materialteknologi | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |