Surface enhanced Raman scattering of gold nanoparticles aggregated by a gold-nanofilm-coated nanofiber

被引：24
作者：
Cheng, Chang [1 ,2 ]
Li, Juan [1 ,2 ]
Lei, Hongxiang [1 ]
Li, Baojun [2 ]
机构：
[1] Sun Yat Sen Univ, Sch Mat Sci & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
[2] Jinan Univ, Inst Nanophoton, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 511443, Guangdong, Peoples R China
来源：
PHOTONICS RESEARCH | 2018年 / 6卷 / 05期
基金：
中国国家自然科学基金;
关键词：
RHODAMINE; 6G; SERS; METAL; SPECTROSCOPY; NANOSTRUCTURES; PERFORMANCE; FIBER; FIELD;
D O I：
10.1364/PRJ.6.000357
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Aggregation of metal nanoparticles plays an important role in surface enhanced Raman scattering (SERS). Here, a strategy of dynamically aggregating/releasing gold nanoparticles is demonstrated using a gold-nanofilm-coated nanofiber, with the assistance of enhanced optical force and plasmonic photothermal effect. Strong SERS signals of rhodamine 6G are achieved at the hotspots formed in the inter-particle and film-particle nanogaps. The proposed SERS substrate was demonstrated to have a sensitivity of 10(-12) M, reliable reproducibility, and good stability. (C) 2018 Chinese Laser Press
引用
收藏
页码：357 / 362
页数：6
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