Hydration layers trapped between graphene and a hydrophilic substrate
Graphene is mechanically exfoliated on ${\rm{Ca}}{{{\rm{F}}}_{2}}$ (111) under ambient conditions. We demonstrate the formation of a several monolayer thick hydration layer on the hydrophilic substrate and its response to annealing at temperatures up to 750 K in an ultra-high vacuum environment. Upo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2014-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/16/5/053039 |
| _version_ | 1827874211018833920 |
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| author | M Temmen O Ochedowski M Schleberger M Reichling T R J Bollmann |
| author_facet | M Temmen O Ochedowski M Schleberger M Reichling T R J Bollmann |
| author_sort | M Temmen |
| collection | DOAJ |
| description | Graphene is mechanically exfoliated on ${\rm{Ca}}{{{\rm{F}}}_{2}}$ (111) under ambient conditions. We demonstrate the formation of a several monolayer thick hydration layer on the hydrophilic substrate and its response to annealing at temperatures up to 750 K in an ultra-high vacuum environment. Upon heating, water is released, however, it is impossible to remove the first layer. The initially homogeneous film separates into water-containing and water-free domains by two-dimensional Ostwald ripening. Upon severe heating, thick graphene multilayers undergo rupture, while nanoblisters confining sealed water appear on thinner sheets, capable of the storage and release of material. From modeling the dimensions of the nanoblisters, we estimate the graphene/ ${\rm{Ca}}{{{\rm{F}}}_{2}}$ (111) interfacial adhesion energy to be $0.33\pm 0.13$ ${\rm{J}}\;{{{\rm{m}}}^{-2}}$ , thereby viable for polymer-assisted transfer printing. |
| first_indexed | 2024-03-12T16:49:00Z |
| format | Article |
| id | doaj.art-d0faa1aee904441ba89f412f8352fa23 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:49:00Z |
| publishDate | 2014-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-d0faa1aee904441ba89f412f8352fa232023-08-08T11:28:01ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116505303910.1088/1367-2630/16/5/053039Hydration layers trapped between graphene and a hydrophilic substrateM Temmen0O Ochedowski1M Schleberger2M Reichling3T R J Bollmann4Fachbereich Physik, Universität Osnabrück , Barbarastraße 7, 49076 Osnabrück, GermanyFakultät für Physik and CeNIDE, Universität Duisburg-Essen , 47048 Duisburg, GermanyFakultät für Physik and CeNIDE, Universität Duisburg-Essen , 47048 Duisburg, GermanyFachbereich Physik, Universität Osnabrück , Barbarastraße 7, 49076 Osnabrück, GermanyFachbereich Physik, Universität Osnabrück , Barbarastraße 7, 49076 Osnabrück, GermanyGraphene is mechanically exfoliated on ${\rm{Ca}}{{{\rm{F}}}_{2}}$ (111) under ambient conditions. We demonstrate the formation of a several monolayer thick hydration layer on the hydrophilic substrate and its response to annealing at temperatures up to 750 K in an ultra-high vacuum environment. Upon heating, water is released, however, it is impossible to remove the first layer. The initially homogeneous film separates into water-containing and water-free domains by two-dimensional Ostwald ripening. Upon severe heating, thick graphene multilayers undergo rupture, while nanoblisters confining sealed water appear on thinner sheets, capable of the storage and release of material. From modeling the dimensions of the nanoblisters, we estimate the graphene/ ${\rm{Ca}}{{{\rm{F}}}_{2}}$ (111) interfacial adhesion energy to be $0.33\pm 0.13$ ${\rm{J}}\;{{{\rm{m}}}^{-2}}$ , thereby viable for polymer-assisted transfer printing.https://doi.org/10.1088/1367-2630/16/5/053039graphenediffusion of adsorbateskinetics of coarsening and aggregationliquid−solid interface structureatomic force microscopyKelvin probe force microscopy |
| spellingShingle | M Temmen O Ochedowski M Schleberger M Reichling T R J Bollmann Hydration layers trapped between graphene and a hydrophilic substrate New Journal of Physics graphene diffusion of adsorbates kinetics of coarsening and aggregation liquid−solid interface structure atomic force microscopy Kelvin probe force microscopy |
| title | Hydration layers trapped between graphene and a hydrophilic substrate |
| title_full | Hydration layers trapped between graphene and a hydrophilic substrate |
| title_fullStr | Hydration layers trapped between graphene and a hydrophilic substrate |
| title_full_unstemmed | Hydration layers trapped between graphene and a hydrophilic substrate |
| title_short | Hydration layers trapped between graphene and a hydrophilic substrate |
| title_sort | hydration layers trapped between graphene and a hydrophilic substrate |
| topic | graphene diffusion of adsorbates kinetics of coarsening and aggregation liquid−solid interface structure atomic force microscopy Kelvin probe force microscopy |
| url | https://doi.org/10.1088/1367-2630/16/5/053039 |
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