Preferential amorphisation of Ge nanocrystals in a silica matrix

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dc.contributor.authorRidgway, MCen_AU
dc.contributor.authorAzevedo, GDMen_AU
dc.contributor.authorElliman, RGen_AU
dc.contributor.authorWesch, Wen_AU
dc.contributor.authorGlover, CJen_AU
dc.contributor.authorMiller, Ren_AU
dc.contributor.authorLlewellyn, DJen_AU
dc.contributor.authorForan, GJen_AU
dc.contributor.authorHansen, JLen_AU
dc.contributor.authorNylandsted Larsen, Aen_AU
dc.date.accessioned2021-09-14T03:30:19Zen_AU
dc.date.available2021-09-14T03:30:19Zen_AU
dc.date.issued2004-09-05en_AU
dc.date.statistics2021-09-09en_AU
dc.description.abstractExtended X-ray absorption fine structure and Raman spectroscopies have been used to compare the crystalline-to-amorphous phase transformation in nanocrystalline and polycrystalline Ge. We demonstrate Ge nanocrystals are extremely sensitive to ion irradiation and are rendered amorphous at an ion dose ∼40 times less than that required to amorphise bulk, crystalline standards. This rapid amorphisation is attributed to the higher-energy nanocrystalline structural state prior to irradiation, inhibited Frenkel pair recombination when Ge interstitials are recoiled into the matrix and preferential nucleation of the amorphous phase at the nanocrystal/matrix interface. © 2005 Elsevier B.Ven_AU
dc.identifier.citationRidgway, M. C., Azevedo, G. D. M., Elliman, R. G., Wesch, W., Glover, C. J., Miller, R., Llewellyn, D. J., Foran, G. J., Hansen, J. L.& Nylandsted Larsen, A. (2004). Preferential amorphisation of Ge nanocrystals in a silica matrix. Paper presented to the 14th International Conference on Ion Beam Modification of Materials, Pacific Grove, California, USA, 5-10 September 2004. In Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 242(1-2), 121-124. doi:10.1016/j.nimb.2005.08.024en_AU
dc.identifier.conferenceenddate10 September 2004en_AU
dc.identifier.conferencename14th International Conference on Ion Beam Modification of Materialsen_AU
dc.identifier.conferenceplacePacific Grove, Californiaen_AU
dc.identifier.conferencestartdate5 September 2004en_AU
dc.identifier.editorsAverback, R. S., de la Rubia, T. D., Felter, T. E., Hamza, A. V. &. Rehn, L. E.en_AU
dc.identifier.issn0168-583Xen_AU
dc.identifier.issue1-2en_AU
dc.identifier.journaltitleNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atomsen_AU
dc.identifier.pagination121-124en_AU
dc.identifier.urihttps://doi.org/10.1016/j.nimb.2005.08.024en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11704en_AU
dc.identifier.volume242en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCharged particlesen_AU
dc.subjectCrystal defectsen_AU
dc.subjectCrystal structureen_AU
dc.subjectNanocrystalsen_AU
dc.subjectElectron microscopyen_AU
dc.subjectLaser spectroscopyen_AU
dc.subjectRaman spectroscopyen_AU
dc.subjectMineralsen_AU
dc.subjectOxide mineralsen_AU
dc.subjectPoint defectsen_AU
dc.titlePreferential amorphisation of Ge nanocrystals in a silica matrixen_AU
dc.typeConference Paperen_AU
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