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Localised modificat...
Localised modifications of anatase TiO2 thin films by a Focused Ion Beam
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- Surpi, Alessandro (author)
- Uppsala universitet,Yt- och gränsskiktsvetenskap,Division for Surface and Interface Science, Department of Physics and Astronomy, Uppsala University
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- Göthelid, Emmanuelle (author)
- Uppsala universitet,Yt- och gränsskiktsvetenskap,Division for Surface and Interface Science, Department of Physics and Astronomy, Uppsala University
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- Kubart, Tomas (author)
- Uppsala universitet,Fasta tillståndets elektronik,Solid State Electronics, Department of Engineering Sciences, Uppsala University
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- Martin, David (author)
- Uppsala universitet,Fasta tillståndets elektronik,Solid State Electronics, Department of Engineering Sciences, Uppsala University
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- Jensen, J. (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
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(creator_code:org_t)
- Elsevier BV, 2010
- 2010
- English.
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In: Nuclear Instruments and Methods in Physics Research Section B. - : Elsevier BV. - 0168-583X .- 1872-9584. ; 268:19, s. 3142-3146
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- A Focused Ion Beam (FIB) has been used to implant micrometer-sized areas of polycrystalline anatase TiO2 thin films with Ga+ ions using fluencies from 10(15) to 10(17) ions/cm(2). The evolution of the surface morphology was studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM). In addition, the chemical modifications of the surface were followed by X-ray photoelectron spectroscopy (XPS). The implanted areas show a noticeable change in surface morphology as compared to the as-deposited surface. The surface loses its grainy morphology to gradually become a smooth surface with a RMS roughness of less than 1 nm for the highest ion fluence used. The surface recession or depth of the irradiated area increases with ion fluence, but the rate with which the depth increases changes at around 5 x 10(16) ions/cm(2). Comparison with implantation of a pre-irradiated surface indicates that the initial surface morphology may have a large effect on the surface recession rate. Detailed analysis of the XPS spectra shows that the oxidation state of Ti and O apparently does not change, whereas the implanted gallium exists in an oxidation state related to Ga2O3.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Ion implantation
- Focused Ion Beam
- Titanium dioxide
- Galium oxide
- Thin films
- Physics
- Fysik
- Engineering physics
- Teknisk fysik
- Ion physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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