Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates
This article presents an examination of well-controlled patterns created using a Ga<sup>+</sup>-based focused ion beam (FIB) on glass, while silicon substrates were used to evaluate the FIB performance by its achievable feature size versus time constraints. The pattern creation on glass...
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MDPI AG
2024-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/14/22/1784 |
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| author | Liga Ignatane Reinis Ignatans Juris Prikulis Annamarija Trausa Ciro Federico Tipaldi Edgars Vanags Martins Zubkins Krisjanis Smits Anatolijs Sarakovskis |
| author_facet | Liga Ignatane Reinis Ignatans Juris Prikulis Annamarija Trausa Ciro Federico Tipaldi Edgars Vanags Martins Zubkins Krisjanis Smits Anatolijs Sarakovskis |
| author_sort | Liga Ignatane |
| collection | DOAJ |
| description | This article presents an examination of well-controlled patterns created using a Ga<sup>+</sup>-based focused ion beam (FIB) on glass, while silicon substrates were used to evaluate the FIB performance by its achievable feature size versus time constraints. The pattern creation on glass was developed with the aim of studying potential surface-enhanced Raman spectroscopy (SERS) applications. Furthermore, the FIB was used to create dimer systems of periodically and randomly positioned dumbbell-shaped pits on the glass (each dimer occupies an area of 203 × 87 nm<sup>2</sup>). By following the bitmap pattern files, the FIB ensured there was 3000 dimer fabrication over a 20 × 20 μm<sup>2</sup> large area, with a pit size and position variation below 10 nm. The article highlights that FIB can be used for precise large-area nano-fabrication. The gold nanoparticle dimers were formed on the prepatterned surface via capillary force-assisted deposition. The fabricated nanostructures were tested in SERS measurements. The enhancement factor for Rhodamine B molecule reached ~10<sup>5</sup>, demonstrating the potential application of the method to create nanostructures in the sensor domain. |
| format | Article |
| id | doaj-art-3a1136c932a14d288f366d22b316f1e4 |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-3a1136c932a14d288f366d22b316f1e42024-11-26T18:16:19ZengMDPI AGNanomaterials2079-49912024-11-011422178410.3390/nano14221784Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS SubstratesLiga Ignatane0Reinis Ignatans1Juris Prikulis2Annamarija Trausa3Ciro Federico Tipaldi4Edgars Vanags5Martins Zubkins6Krisjanis Smits7Anatolijs Sarakovskis8Institute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaInstitute of Chemical Physics, Faculty of Science and Technology, University of Latvia, 1 Jelgavas St., LV-1004 Riga, LatviaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaInstitute of Solid State Physics, University of Latvia, 8 Kengaraga St., LV-1063 Riga, LatviaThis article presents an examination of well-controlled patterns created using a Ga<sup>+</sup>-based focused ion beam (FIB) on glass, while silicon substrates were used to evaluate the FIB performance by its achievable feature size versus time constraints. The pattern creation on glass was developed with the aim of studying potential surface-enhanced Raman spectroscopy (SERS) applications. Furthermore, the FIB was used to create dimer systems of periodically and randomly positioned dumbbell-shaped pits on the glass (each dimer occupies an area of 203 × 87 nm<sup>2</sup>). By following the bitmap pattern files, the FIB ensured there was 3000 dimer fabrication over a 20 × 20 μm<sup>2</sup> large area, with a pit size and position variation below 10 nm. The article highlights that FIB can be used for precise large-area nano-fabrication. The gold nanoparticle dimers were formed on the prepatterned surface via capillary force-assisted deposition. The fabricated nanostructures were tested in SERS measurements. The enhancement factor for Rhodamine B molecule reached ~10<sup>5</sup>, demonstrating the potential application of the method to create nanostructures in the sensor domain.https://www.mdpi.com/2079-4991/14/22/1784focused ion beamnanostructure fabricationdimersSERSplasmonics |
| spellingShingle | Liga Ignatane Reinis Ignatans Juris Prikulis Annamarija Trausa Ciro Federico Tipaldi Edgars Vanags Martins Zubkins Krisjanis Smits Anatolijs Sarakovskis Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates Nanomaterials focused ion beam nanostructure fabrication dimers SERS plasmonics |
| title | Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates |
| title_full | Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates |
| title_fullStr | Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates |
| title_full_unstemmed | Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates |
| title_short | Fabrication of Large-Area High-Resolution Templates by Focused Ion Beam Combined with Colloidal Nanoparticle Dimer Deposition for SERS Substrates |
| title_sort | fabrication of large area high resolution templates by focused ion beam combined with colloidal nanoparticle dimer deposition for sers substrates |
| topic | focused ion beam nanostructure fabrication dimers SERS plasmonics |
| url | https://www.mdpi.com/2079-4991/14/22/1784 |
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