Revealing all states of dewetting of a thin gold layer on a silicon surface by nanosecond laser conditioning

dc.bibliographicCitation.firstPage100040eng
dc.bibliographicCitation.journalTitleApplied Surface Science Advanceseng
dc.bibliographicCitation.volume3eng
dc.contributor.authorErnst, Owen C.
dc.contributor.authorUebel, David
dc.contributor.authorKayser, Stefan
dc.contributor.authorLange, Felix
dc.contributor.authorTeubner, Thomas
dc.contributor.authorBoeck, Torsten
dc.date.accessioned2022-02-23T13:36:34Z
dc.date.available2022-02-23T13:36:34Z
dc.date.issued2021
dc.description.abstractDewetting is a ubiquitous phenomenon which can be applied to the laser synthesis of nanoparticles. A classical spinodal dewetting process takes place in four successive states, which differ from each other in their morphology. In this study all states are revealed by interaction of pulsed nanosecond UV laser light with thin gold layers with thicknesses between 1 nm and 10 nm on (100) silicon wafers. The specific morphologies of the dewetting states are discussed with particular emphasis on the state boundaries. The main parameter determining which state is formed is not the duration for which the gold remains liquid, but rather the input energy provided by the laser. This shows that each state transition has a separate measurable activation energy. The temperature during the nanosecond pulses and the duration during which the gold remains liquid was determined by simulation using the COMSOL Multiphysics® software package. Using these calculations, an accurate local temperature profile and its development over time was simulated. An analytical study of the morphologies and formed structures was performed using Minkowski measures. With aid of this tool, the laser induced structures were compared with thermally annealed samples, with perfectly ordered structures and with perfectly random structures. The results show that both, structures of the laser induced and the annealed samples, strongly resemble the perfectly ordered structures. This reveals a close relationship between these structures and suggests that the phenomenon under investigation is indeed a spinodal dewetting generated by an internal material wave function. The purposeful generation of these structures and the elucidation of the underlying mechanism of dewetting by short pulse lasers may assist the realisation of various technical elements such as nanowires in science and industry. © 2020eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/8068
dc.identifier.urihttps://doi.org/10.34657/7109
dc.language.isoengeng
dc.publisherAmsterdam : Elseviereng
dc.relation.doihttps://doi.org/10.1016/j.apsadv.2020.100040
dc.relation.essn2666-5239
dc.rights.licenseCC BY 4.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/eng
dc.subject.ddc540eng
dc.subject.ddc530eng
dc.subject.ddc660eng
dc.subject.otherUV laser lighteng
dc.subject.othersilicon waferseng
dc.subject.otherCOMSOLeng
dc.subject.otherMinkowski measureseng
dc.subject.otherthin gold layereng
dc.titleRevealing all states of dewetting of a thin gold layer on a silicon surface by nanosecond laser conditioningeng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccesseng
wgl.contributorIKZeng
wgl.contributorWIASeng
wgl.subjectChemieeng
wgl.typeZeitschriftenartikeleng
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