SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition
A taper-fiber SERS nanoprobe modified by gold nanoparticles (Au-NPs) with ultrathin alumina layers was fabricated and its ability to perform remote Raman detection was demonstrated. The taper-fiber nanoprobe (TFNP) with a nanoscale tip size under 80 nm was made by heated pulling combined with the ch...
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MDPI AG
2017-02-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/17/3/467 |
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| author | Wenjie Xu Zhenyi Chen Na Chen Heng Zhang Shupeng Liu Xinmao Hu Jianxiang Wen Tingyun Wang |
| author_facet | Wenjie Xu Zhenyi Chen Na Chen Heng Zhang Shupeng Liu Xinmao Hu Jianxiang Wen Tingyun Wang |
| author_sort | Wenjie Xu |
| collection | DOAJ |
| description | A taper-fiber SERS nanoprobe modified by gold nanoparticles (Au-NPs) with ultrathin alumina layers was fabricated and its ability to perform remote Raman detection was demonstrated. The taper-fiber nanoprobe (TFNP) with a nanoscale tip size under 80 nm was made by heated pulling combined with the chemical etching method. The Au-NPs were deposited on the TFNP surface with the electrostatic self-assembly technology, and then the TFNP was wrapped with ultrathin alumina layers by the atomic layer deposition (ALD) technique. The results told us that with the increasing thickness of the alumina film, the Raman signals decreased. With approximately 1 nm alumina film, the remote detection limit for R6G aqueous solution reached 10−6 mol/L. |
| first_indexed | 2024-04-14T06:57:50Z |
| format | Article |
| id | doaj.art-3f21a819a7c34dcb90a5ce9bba7f02e6 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T06:57:50Z |
| publishDate | 2017-02-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-3f21a819a7c34dcb90a5ce9bba7f02e62022-12-22T02:06:50ZengMDPI AGSensors1424-82202017-02-0117346710.3390/s17030467s17030467SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer DepositionWenjie Xu0Zhenyi Chen1Na Chen2Heng Zhang3Shupeng Liu4Xinmao Hu5Jianxiang Wen6Tingyun Wang7Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaKey Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200444, ChinaA taper-fiber SERS nanoprobe modified by gold nanoparticles (Au-NPs) with ultrathin alumina layers was fabricated and its ability to perform remote Raman detection was demonstrated. The taper-fiber nanoprobe (TFNP) with a nanoscale tip size under 80 nm was made by heated pulling combined with the chemical etching method. The Au-NPs were deposited on the TFNP surface with the electrostatic self-assembly technology, and then the TFNP was wrapped with ultrathin alumina layers by the atomic layer deposition (ALD) technique. The results told us that with the increasing thickness of the alumina film, the Raman signals decreased. With approximately 1 nm alumina film, the remote detection limit for R6G aqueous solution reached 10−6 mol/L.http://www.mdpi.com/1424-8220/17/3/467taper-fiber nanoprobegold nanoparticlesatomic layer depositionsurface enhancement Raman spectroscopy |
| spellingShingle | Wenjie Xu Zhenyi Chen Na Chen Heng Zhang Shupeng Liu Xinmao Hu Jianxiang Wen Tingyun Wang SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition Sensors taper-fiber nanoprobe gold nanoparticles atomic layer deposition surface enhancement Raman spectroscopy |
| title | SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition |
| title_full | SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition |
| title_fullStr | SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition |
| title_full_unstemmed | SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition |
| title_short | SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition |
| title_sort | sers taper fiber nanoprobe modified by gold nanoparticles wrapped with ultrathin alumina film by atomic layer deposition |
| topic | taper-fiber nanoprobe gold nanoparticles atomic layer deposition surface enhancement Raman spectroscopy |
| url | http://www.mdpi.com/1424-8220/17/3/467 |
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