| 摘要: |
| 基于利用磁控溅射方法制备的纳米银颗粒,研究了纳米银颗粒局域表面等离激元对介质环境的敏感程度,作为媒介提高光与物质相互作用的可能性.研究结果表明:传感灵敏度最大可达到约931 nm/RIU,石墨烯拉曼信号可提高约40倍,可见光吸收提高约10倍.该研究表明制备简单、光学响应灵敏的纳米银颗粒在传感、光电探测及分子识别等领域具有潜在的应用价值. |
| 关键词: 表面光学 表面等离激元共振 可见及拉曼光谱测量 纳米银颗粒 磁控溅射 石墨烯 |
| DOI： |
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| Localized surface plasmon resonance in silver nanoparticles——sensing,molecular recognition and light-matter interaction enhancement |
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CHEN Luyi, ZHAO Xiaojing, HAO Yinghua, LIU Feng
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College of Mathematics and Sciences,Shanghai Normal University
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| Abstract: |
| With the silver nanoparticles prepared by magnetron sputtering method,we study,in silver nanoparticles,the environmental dependence of localized surface plasmons (LSPs) and the light-matter interaction enhancement mediated by LSPs.The result reveals that the sensitivity reaches 931 nm/RIU,the graphene Raman signal increases about 40 times,and the graphene absorption in visible regime about 10 times.The study shows that the easy-fabrication,optically sensitive silver nanoparticles provide us unprecedented opportunities on various application fields including sensors,optoelectric detectors,and molecular recognition devices. |
| Key words: optics at surface surface plasmon resonance visible & Raman spectroscopy measurement silver nanoparticles magnetron sputting graphene |
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