| 摘要: |
| 在金属辅助化学刻蚀法制备的硅纳米线表面,通过喷墨打印纳米银油墨制备了银纳米粒子/硅纳米线复合结构基底.通过调节刻蚀时间和刻蚀温度,探究硅纳米线的微观形貌变化,及其对基底表面增强拉曼散射（SERS）活性的影响.实验结果表明,硅纳米线的长度随着刻蚀时间的延长而增加.当刻蚀温度为40℃、刻蚀时间为8 min时,能够激发更强的SERS信号.银纳米粒子/硅纳米线对探针分子罗丹明6G的最低检测限为10-7 mol·L-1. |
| 关键词: 表面增强拉曼散射（SERS） 喷墨打印 硅纳米线 银纳米粒子 罗丹明6G |
| DOI：10.3969/J.ISSN.1000-5137.2023.05.014 |
| 分类号:O 469 |
| 基金项目:上海市自然科学基金（19ZR1437700） |
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| SERS performance of nanosilver ink inkjet printed on the surface of silicon nanowires |
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QIN Yufei, LIU Xinshuo, XIAO Guina
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Mathematics and Science College, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| On the surface of silicon nanowires fabricated by a metal-assisted chemical etching method, silver nanoparticles/silicon nanowires composite structure substrates were prepared by inkjet printing nano-silver ink. By adjusting the etching time and temperature, the microstructure changes of silicon nanowires, and their effect on the surface enhanced Raman scattering （SERS） activity of the substrates were investigated. Experimental results indicate that the length of silicon nanowires increase with the prolongation of etching time. A stronger SERS signal can be achieved when the etching temperature is 40 ℃ and the etching time is 8 minutes. The composite of silver nanoparticles/silicon nanowires demonstrate a minimum detection limit of 10-7 mol·L-1 for the probe molecule Rhodamine 6G. |
| Key words: surface enhanced Raman scattering （SERS） inkjet printing silicon nanowires silver nanoparticles Rhodamine 6G |
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