Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces
This study evaluates the effectiveness of vapour-phase deposition for creating sub-monolayer coverage of aminopropyl triethoxysilane (APTES) on silicon in order to exert control over subsequent gold nanoparticle deposition. Surface coverage was evaluated indirectly by observing the extent to which g...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2013-03-01
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| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2079-4991/3/1/192 |
| _version_ | 1818977142466150400 |
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| author | Chris J. Allender Jenna L. Bowen Sophie E. Williams Philip R. Davies |
| author_facet | Chris J. Allender Jenna L. Bowen Sophie E. Williams Philip R. Davies |
| author_sort | Chris J. Allender |
| collection | DOAJ |
| description | This study evaluates the effectiveness of vapour-phase deposition for creating sub-monolayer coverage of aminopropyl triethoxysilane (APTES) on silicon in order to exert control over subsequent gold nanoparticle deposition. Surface coverage was evaluated indirectly by observing the extent to which gold nanoparticles (AuNPs) deposited onto the modified silicon surface. By varying the distance of the silicon wafer from the APTES source and concentration of APTES in the evaporating media, control over subsequent gold nanoparticle deposition was achievable to an extent. Fine control over AuNP deposition (AuNPs/μm2) however, was best achieved by adjusting the ionic concentration of the AuNP-depositing solution. Furthermore it was demonstrated that although APTES was fully removed from the silicon surface following four hours incubation in water, the gold nanoparticle-amino surface complex was stable under the same conditions. Atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) were used to study these affects. |
| first_indexed | 2024-12-20T16:23:02Z |
| format | Article |
| id | doaj.art-320020bf86e94fb2854b9e9503ac6b24 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-20T16:23:02Z |
| publishDate | 2013-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-320020bf86e94fb2854b9e9503ac6b242022-12-21T19:33:33ZengMDPI AGNanomaterials2079-49912013-03-013119220310.3390/nano3010192Controlling the Nanoscale Patterning of AuNPs on Silicon SurfacesChris J. AllenderJenna L. BowenSophie E. WilliamsPhilip R. DaviesThis study evaluates the effectiveness of vapour-phase deposition for creating sub-monolayer coverage of aminopropyl triethoxysilane (APTES) on silicon in order to exert control over subsequent gold nanoparticle deposition. Surface coverage was evaluated indirectly by observing the extent to which gold nanoparticles (AuNPs) deposited onto the modified silicon surface. By varying the distance of the silicon wafer from the APTES source and concentration of APTES in the evaporating media, control over subsequent gold nanoparticle deposition was achievable to an extent. Fine control over AuNP deposition (AuNPs/μm2) however, was best achieved by adjusting the ionic concentration of the AuNP-depositing solution. Furthermore it was demonstrated that although APTES was fully removed from the silicon surface following four hours incubation in water, the gold nanoparticle-amino surface complex was stable under the same conditions. Atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) were used to study these affects.http://www.mdpi.com/2079-4991/3/1/192vapour-phase depositionAPTESgoldnanoparticlechemical nanopatterning |
| spellingShingle | Chris J. Allender Jenna L. Bowen Sophie E. Williams Philip R. Davies Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces Nanomaterials vapour-phase deposition APTES gold nanoparticle chemical nanopatterning |
| title | Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces |
| title_full | Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces |
| title_fullStr | Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces |
| title_full_unstemmed | Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces |
| title_short | Controlling the Nanoscale Patterning of AuNPs on Silicon Surfaces |
| title_sort | controlling the nanoscale patterning of aunps on silicon surfaces |
| topic | vapour-phase deposition APTES gold nanoparticle chemical nanopatterning |
| url | http://www.mdpi.com/2079-4991/3/1/192 |
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