Wafer-scale SERS metallic nanotube arrays with highly ordered periodicity
| Autor: | Jinn P. Chu, Yi-Chi Lu, Chih-Yu Liu, Chun-Hway Hsueh, Hsin-Chia Ho, Wei-Hung Chiang |
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| Rok vydání: | 2021 |
| Předmět: |
Detection limit
Nanotube Materials science Fabrication Nanostructure Amorphous metal Metals and Alloys Nanotechnology 02 engineering and technology Substrate (electronics) 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials symbols.namesake Materials Chemistry symbols Wafer Electrical and Electronic Engineering 0210 nano-technology Instrumentation Raman scattering |
| Zdroj: | Sensors and Actuators B: Chemical. 329:129132 |
| ISSN: | 0925-4005 |
| Popis: | The development of surface-enhanced Raman scattering (SERS) substrates has been hampered by difficulties in scaling up fabrication and an inability to obtain meaningful, statistical measurements of nanostructures, due to the effects of molecular adsorption. This paper reports on the wafer-scale fabrication of ultrahigh sensitivity SERS substrates using metallic glass nanotube arrays with highly ordered periodicity. Systematic micro-Raman spectroscopic analysis revealed that the fabricated array could function as a SERS-active substrate with crystal violet (CV) and folic acid as analytes (detection limit of 10−11 M and enhancement factor of 4.21 × 106 for CV). This work was the first to fabricate wafer-scale metallic nanotube arrays with SERS properties, which represents an important step toward realizing the large-scale fabrication of ultrasensitive SERS-active materials. |
| Databáze: | OpenAIRE |
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