Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes
This study investigates the controlled chemical functionalization of silicon oxide nanostructures prepared by AFM-anodization lithography of alkyl-terminated silicon. Different conditions for the growth of covalently bound mono-, multi- or submonolayers of distinctively functional silane molecules o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2013-03-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.4.22 |
| _version_ | 1811310333122314240 |
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| author | Thomas Baumgärtel Christian von Borczyskowski Harald Graaf |
| author_facet | Thomas Baumgärtel Christian von Borczyskowski Harald Graaf |
| author_sort | Thomas Baumgärtel |
| collection | DOAJ |
| description | This study investigates the controlled chemical functionalization of silicon oxide nanostructures prepared by AFM-anodization lithography of alkyl-terminated silicon. Different conditions for the growth of covalently bound mono-, multi- or submonolayers of distinctively functional silane molecules on nanostructures have been identified by AFM-height investigations. Routes for the preparation of methyl- or amino-terminated structures or silicon surfaces are presented and discussed. The formation of silane monolayers on nanoscopic silicon oxide nanostructures was found to be much more sensitive towards ambient humidity than, e.g., the silanization of larger OH-terminated silica surfaces. Amino-functionalized nanostructures have been successfully modified by the covalent binding of functional fluorescein dye molecules. Upon excitation, the dye-functionalized structures show only weak fluorescence, which may be an indication of a relatively low surface coverage of the dye molecules on length scale that is not accessible by standard AFM measurements. |
| first_indexed | 2024-04-13T09:57:12Z |
| format | Article |
| id | doaj.art-0cc7fa100bf24c8eb1671421c10a8d9e |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-04-13T09:57:12Z |
| publishDate | 2013-03-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-0cc7fa100bf24c8eb1671421c10a8d9e2022-12-22T02:51:20ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862013-03-014121822610.3762/bjnano.4.222190-4286-4-22Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanesThomas Baumgärtel0Christian von Borczyskowski1Harald Graaf2Center for Nanostructured Materials and Analytics, Institute of Physics, Chemnitz University of Technology Reichenhainer Str. 70, 09126 Chemnitz, GermanyCenter for Nanostructured Materials and Analytics, Institute of Physics, Chemnitz University of Technology Reichenhainer Str. 70, 09126 Chemnitz, GermanyCenter for Nanostructured Materials and Analytics, Institute of Physics, Chemnitz University of Technology Reichenhainer Str. 70, 09126 Chemnitz, GermanyThis study investigates the controlled chemical functionalization of silicon oxide nanostructures prepared by AFM-anodization lithography of alkyl-terminated silicon. Different conditions for the growth of covalently bound mono-, multi- or submonolayers of distinctively functional silane molecules on nanostructures have been identified by AFM-height investigations. Routes for the preparation of methyl- or amino-terminated structures or silicon surfaces are presented and discussed. The formation of silane monolayers on nanoscopic silicon oxide nanostructures was found to be much more sensitive towards ambient humidity than, e.g., the silanization of larger OH-terminated silica surfaces. Amino-functionalized nanostructures have been successfully modified by the covalent binding of functional fluorescein dye molecules. Upon excitation, the dye-functionalized structures show only weak fluorescence, which may be an indication of a relatively low surface coverage of the dye molecules on length scale that is not accessible by standard AFM measurements.https://doi.org/10.3762/bjnano.4.22AFM lithographyamino-functionalizationlocal anodic oxidationoctadecyl-trichlorosilanesilicon oxide nanostructures |
| spellingShingle | Thomas Baumgärtel Christian von Borczyskowski Harald Graaf Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes Beilstein Journal of Nanotechnology AFM lithography amino-functionalization local anodic oxidation octadecyl-trichlorosilane silicon oxide nanostructures |
| title | Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes |
| title_full | Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes |
| title_fullStr | Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes |
| title_full_unstemmed | Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes |
| title_short | Selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes |
| title_sort | selective surface modification of lithographic silicon oxide nanostructures by organofunctional silanes |
| topic | AFM lithography amino-functionalization local anodic oxidation octadecyl-trichlorosilane silicon oxide nanostructures |
| url | https://doi.org/10.3762/bjnano.4.22 |
| work_keys_str_mv | AT thomasbaumgartel selectivesurfacemodificationoflithographicsiliconoxidenanostructuresbyorganofunctionalsilanes AT christianvonborczyskowski selectivesurfacemodificationoflithographicsiliconoxidenanostructuresbyorganofunctionalsilanes AT haraldgraaf selectivesurfacemodificationoflithographicsiliconoxidenanostructuresbyorganofunctionalsilanes |