Ion beam surface nanostructuring of noble metal films with localized surface plasmon excitation
| Autor: | Ruixuan Yu, Tamaki Shibayama, Xuan Meng, Seiichi Watanabe, Junya Ishioka |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Ion beam business.industry Analytical chemistry Physics::Optics Nanoparticle 02 engineering and technology Dielectric Surface-enhanced Raman spectroscopy engineering.material 021001 nanoscience & nanotechnology 01 natural sciences 0103 physical sciences engineering Optoelectronics General Materials Science Noble metal 010306 general physics 0210 nano-technology business Plasmon Excitation Localized surface plasmon |
| Zdroj: | Current Opinion in Solid State and Materials Science. 21:177-188 |
| ISSN: | 1359-0286 |
| DOI: | 10.1016/j.cossms.2017.01.001 |
| Popis: | Noble metal nanoparticles strongly adhered to dielectric matrices have been extensively studied because of their potential applications in plasmonic devices based on tunable localized surface plasmon (LSP) excitation. Compared with conventional synthesis methods, the noble metal nanoparticles formed by ion-beam irradiation draw significant interest in recent years because a single layer dispersion of nanoparticles strongly bonded on the dielectric substrate can be obtained. In this paper, important phenomena related to ion-beam surface nanostructuring including ion-induced reshaping of metal nanoparticles, ion-induced core-satellite structure formation, and ion-induced burrowing of these nanoparticles are discussed, with their individual effects on LSP excitation. Consequently, ion-induced surface nanostructuring of Ag-Au bimetallic films on amorphous silica glass and sapphire with tunable LSP excitation are presented. In addition, theoretical studies of far-field and near-field optical properties of these nanoparticles under ion irradiation are introduced, and the enhanced localized electric field (hot spot) is interpreted. Finally, the futures and challenges of the emerging plasmonic applications based on tunable LSP excitations in bio-sensing and surface enhanced Raman spectroscopy (SERS) are presented. |
| Databáze: | OpenAIRE |
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