Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-Aminopropyltrimethoxysilane
In this work, we studied the structure of synthesized triangular silver nanoplates in solution and the growth of the nanoplates on a silicon surface using 3-aminopropyltrimethoxysilane (APTMS) as a coupling agent. The triangular-shaped colloidal silver nanoplates were simply synthesized by a direc...
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MDPI AG
2015-07-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/5/3/209 |
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| author | Norhayati Abu Bakar Joe George Shapter Muhamad Mat Salleh Akrajas Ali Umar |
| author_facet | Norhayati Abu Bakar Joe George Shapter Muhamad Mat Salleh Akrajas Ali Umar |
| author_sort | Norhayati Abu Bakar |
| collection | DOAJ |
| description | In this work, we studied the structure of synthesized triangular silver nanoplates in solution and the growth of the nanoplates on a silicon surface using 3-aminopropyltrimethoxysilane (APTMS) as a coupling agent. The triangular-shaped colloidal silver nanoplates were simply synthesized by a direct chemical reduction approach. We studied the three characteristic peaks of the unique optical absorbance of triangular silver nanoplates and subsequently measured an average edge length of 26 ± 1 nm. The nanoplate thickness was determined to be 7 ± 2 nm from transmission electron microscopy images. Depositing the nanoplates on a silicon surface was carried out to determine the coverage of triangular nanoplates obtained when adhesion was promoted by a coupling agent. The APTMS film assisted the attachment of the nanoplates to the silicon surface and the coverage of the nanoplates increased with increasing deposition time. The triangular silver nanoplate thin film was a monolayer and a high coverage (near complete) was obtained after eight hours of exposure to the nanoplate solution. The silver film formed was shown to be a good surface-enhanced Raman scattering (SERS) substrate as it gave an enormous Raman enhancement for bisphenol A (BPA). |
| first_indexed | 2024-12-11T22:14:52Z |
| format | Article |
| id | doaj.art-cbfe1c26e80c44a3aae65b22513d5bb5 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T22:14:52Z |
| publishDate | 2015-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-cbfe1c26e80c44a3aae65b22513d5bb52022-12-22T00:48:38ZengMDPI AGApplied Sciences2076-34172015-07-015320922110.3390/app5030209app5030209Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-AminopropyltrimethoxysilaneNorhayati Abu Bakar0Joe George Shapter1Muhamad Mat Salleh2Akrajas Ali Umar3Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaSchool of Chemical and Physical Sciences and Flinders Centre for Nanoscale Science and Technology, Flinders University, Bedford Park, Adelaide South Australia 5001, AustraliaInstitute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaInstitute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaIn this work, we studied the structure of synthesized triangular silver nanoplates in solution and the growth of the nanoplates on a silicon surface using 3-aminopropyltrimethoxysilane (APTMS) as a coupling agent. The triangular-shaped colloidal silver nanoplates were simply synthesized by a direct chemical reduction approach. We studied the three characteristic peaks of the unique optical absorbance of triangular silver nanoplates and subsequently measured an average edge length of 26 ± 1 nm. The nanoplate thickness was determined to be 7 ± 2 nm from transmission electron microscopy images. Depositing the nanoplates on a silicon surface was carried out to determine the coverage of triangular nanoplates obtained when adhesion was promoted by a coupling agent. The APTMS film assisted the attachment of the nanoplates to the silicon surface and the coverage of the nanoplates increased with increasing deposition time. The triangular silver nanoplate thin film was a monolayer and a high coverage (near complete) was obtained after eight hours of exposure to the nanoplate solution. The silver film formed was shown to be a good surface-enhanced Raman scattering (SERS) substrate as it gave an enormous Raman enhancement for bisphenol A (BPA).http://www.mdpi.com/2076-3417/5/3/2093-aminopropyltrimethoxysilane (APTMS)high density surfaceself assemblytriangular silver nanoplate thin film |
| spellingShingle | Norhayati Abu Bakar Joe George Shapter Muhamad Mat Salleh Akrajas Ali Umar Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-Aminopropyltrimethoxysilane Applied Sciences 3-aminopropyltrimethoxysilane (APTMS) high density surface self assembly triangular silver nanoplate thin film |
| title | Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-Aminopropyltrimethoxysilane |
| title_full | Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-Aminopropyltrimethoxysilane |
| title_fullStr | Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-Aminopropyltrimethoxysilane |
| title_full_unstemmed | Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-Aminopropyltrimethoxysilane |
| title_short | Self-Assembly of High Density of Triangular Silver Nanoplate Films Promoted by 3-Aminopropyltrimethoxysilane |
| title_sort | self assembly of high density of triangular silver nanoplate films promoted by 3 aminopropyltrimethoxysilane |
| topic | 3-aminopropyltrimethoxysilane (APTMS) high density surface self assembly triangular silver nanoplate thin film |
| url | http://www.mdpi.com/2076-3417/5/3/209 |
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