Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS Performance
A small amount of silver was obliquely deposited onto a polymer subwavelength grating to form a metasurface that comprised silver split-tubes. An ultra-thin silver film with a monitor-controlled thickness of 20 nm at the corner of each ridge of the grating provided the most sensitive surface-enhance...
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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/2079-4991/14/23/1871 |
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| author | Yi-Jun Jen Meng-Jie Lin |
| author_facet | Yi-Jun Jen Meng-Jie Lin |
| author_sort | Yi-Jun Jen |
| collection | DOAJ |
| description | A small amount of silver was obliquely deposited onto a polymer subwavelength grating to form a metasurface that comprised silver split-tubes. An ultra-thin silver film with a monitor-controlled thickness of 20 nm at the corner of each ridge of the grating provided the most sensitive surface-enhanced Raman scattering (SERS) measurements. An excitation laser beam that was incident from the substrate provided similar or better SERS enhancement than did the general configuration with the laser beam incident directly on the surface of the nanostructure. Near-field simulations were conducted to model the localized electric field enhancement and to quantify the SERS performance, demonstrating the effectiveness of this novel deposition method. |
| format | Article |
| id | doaj-art-82b49650264c4b0683a32b49625f1dac |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-82b49650264c4b0683a32b49625f1dac2024-12-13T16:29:12ZengMDPI AGNanomaterials2079-49912024-11-011423187110.3390/nano14231871Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS PerformanceYi-Jun Jen0Meng-Jie Lin1Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 106, TaiwanDepartment of Electro-Optical Engineering, National Taipei University of Technology, Taipei 106, TaiwanA small amount of silver was obliquely deposited onto a polymer subwavelength grating to form a metasurface that comprised silver split-tubes. An ultra-thin silver film with a monitor-controlled thickness of 20 nm at the corner of each ridge of the grating provided the most sensitive surface-enhanced Raman scattering (SERS) measurements. An excitation laser beam that was incident from the substrate provided similar or better SERS enhancement than did the general configuration with the laser beam incident directly on the surface of the nanostructure. Near-field simulations were conducted to model the localized electric field enhancement and to quantify the SERS performance, demonstrating the effectiveness of this novel deposition method.https://www.mdpi.com/2079-4991/14/23/1871oblique depositionplasmonic nanostructuressurface-enhanced Raman scattering (SERS)ultra-thin silver filmspolymer gratings |
| spellingShingle | Yi-Jun Jen Meng-Jie Lin Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS Performance Nanomaterials oblique deposition plasmonic nanostructures surface-enhanced Raman scattering (SERS) ultra-thin silver films polymer gratings |
| title | Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS Performance |
| title_full | Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS Performance |
| title_fullStr | Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS Performance |
| title_full_unstemmed | Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS Performance |
| title_short | Oblique Deposited Ultra-Thin Silver Films on Polymer Gratings for Sensitive SERS Performance |
| title_sort | oblique deposited ultra thin silver films on polymer gratings for sensitive sers performance |
| topic | oblique deposition plasmonic nanostructures surface-enhanced Raman scattering (SERS) ultra-thin silver films polymer gratings |
| url | https://www.mdpi.com/2079-4991/14/23/1871 |
| work_keys_str_mv | AT yijunjen obliquedepositedultrathinsilverfilmsonpolymergratingsforsensitivesersperformance AT mengjielin obliquedepositedultrathinsilverfilmsonpolymergratingsforsensitivesersperformance |