Effect of Au on the crystallization of germanium thin films by electron-beam evaporation

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dc.contributor.authorEygi, Zeynep Deniz
dc.contributor.authorKulakci, Mustafa
dc.contributor.authorTuran, Rasit
dc.date.accessioned2025-01-27T20:31:47Z
dc.date.available2025-01-27T20:31:47Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description9th Nanoscience and Nanotechnology Conference (NANOTR) -- JUN 24-28, 2013 -- Erzurum, TURKEY
dc.description.abstractMetal induced crystallization is a widely used method to form crystalline/polycrystalline structures at low temperatures. In this work, Au was applied to enhance the crystallization of amorphous Ge films. Ge films with thicknesses of similar to 1.5 mu m were fabricated by electron beam evaporation on c-Si substrate with and without very thin Au layer. Crystallization properties of Ge films were analyzed for different growth and post annealing temperatures varied between 270 degrees C and 730 degrees C. The structures of polycrystalline Ge films were investigated by employing X-ray diffraction (XRD), Raman spectra and scanning electron microscopy (SEM). The existence of thin Au layer showed significant impact on the crystallization of amorphous Ge films in terms of reducing the crystallization temperature. In post annealing processes, it was noticed that the impact of Au thin layer on crystallization slightly reduces above the temperature of similar to 400 degrees C, and almost no remarkable differences were observed between the films with and without Au layer in this temperature region. It is observed that the growth temperature has a stronger effect on the crystallization than post annealing temperatures in the presence of Au thin film. It is also shown that Au layer catalyzes the axial growth in the presence of planar Ge layer on the substrate surface. (C) 2014 Elsevier BY. All rights reserved.
dc.identifier.doi10.1016/j.apsusc.2014.01.145
dc.identifier.endpage120
dc.identifier.issn0169-4332
dc.identifier.issn1873-5584
dc.identifier.scopus2-s2.0-84909977850
dc.identifier.scopusqualityQ1
dc.identifier.startpage116
dc.identifier.urihttps://doi.org/10.1016/j.apsusc.2014.01.145
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23267
dc.identifier.volume318
dc.identifier.wosWOS:000344380500023
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofApplied Surface Science
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPoly-Ge
dc.subjectMetal induced crystallization
dc.subjectAxial growth
dc.titleEffect of Au on the crystallization of germanium thin films by electron-beam evaporation
dc.typeConference Object

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