Tuning surface-enhanced Raman scattering activity of silver nanowires

被引：7
作者：
Chen, Baili [1 ,2 ,3 ]
Zhou, Wei [1 ]
Zhao, Mingshi [3 ]
Si, Pengchao [2 ]
机构：
[1] Sichuan Univ Sci & Engn, Sch Chem & Environm Engn, Zigong 643000, Sichuan, Peoples R China
[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
[3] Zhuhai Nanomet Technol Co Ltd, Zhuhai 519080, Peoples R China
来源：
OPTIK | 2021年 / 244卷
基金：
中国国家自然科学基金;
关键词：
Surface-enhanced Raman scattering (SERS); Silver nanowires (Ag NWs); Rhodamine 6G (R6G); Finite difference time domain (FDTD); GOLD NANOPARTICLES; SERS; SIZE; SPECTROSCOPY; MONOLAYERS; MOLECULES; PLATFORM; NM;
D O I：
10.1016/j.ijleo.2021.167537
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Silver nanostructure has excellent surface-enhanced Raman scattering (SERS) properties. However, the influence of the diameter of silver nanowires on the SERS is still unclear. To this end, four Ag NWs with diameters of 20, 25, 31, and 38 nm were designed and fabricated. The effects of diameter on the SERS were studied experimentally and simulated theoretically. The results indicate that the SERS activities of the Ag NWs increase with the diameter within a certain range. The highest EF value is up to 5.0 x 10(9). These results may provide a reference for the design of high-performance Ag NWs SERS substrates.
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页数：9
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