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题名:
Gold nanoparticle thin films fabricated by electrophoretic deposition method for highly sensitive SERS application
作者: Zhu, Sheng-Qing1,2,3; Zhang, Tong1,2,3; Guo, Xin-Li4; Wang, Qi-Long1,2; Liu, Xuefeng5; Zhang, Xiao-Yang1,2,3
刊名: NANOSCALE RESEARCH LETTERS
出版日期: 2012-11-06
卷号: 7
关键词: Gold nanoparticle ; Electrophoretic deposition ; SERS
文章类型: Article
英文摘要: We report an electrophoretic deposition method for the fabrication of gold nanoparticle (GNP) thin films as sensitive surface-enhanced Raman scattering (SERS) substrates. In this method, GNP sol, synthesized by a seed-mediated growth approach, and indium tin oxide (ITO) glass substrates were utilized as an electrophoretic solution and electrodes, respectively. From the scanning electron microscopy analysis, we found that the density of GNPs deposited on ITO glass substrates increases with prolonged electrophoresis time. The films possess high mechanical adhesion strength and exhibit strong localized surface plasmon resonance (LSPR) effect by showing high SERS sensitivity to detect 1 x 10(-7) M rhodamine 6 G in methanol solution. Finally, the relationship between Raman signal amplification capability and GNP deposition density has been further investigated. The results of our experiment indicate that the high-density GNP film shows relatively higher signal amplification capability due to the strong LSPR effect in narrow gap regions between the neighboring particles on the film.
WOS标题词: Science & Technology ; Technology ; Physical Sciences
类目[WOS]: Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]: Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]: ENHANCED RAMAN-SCATTERING ; SOLAR-CELL ; SILVER ; SIZE ; ELECTRODEPOSITION ; SHAPE
收录类别: SCI
语种: 英语
WOS记录号: WOS:000311678100001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2365
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Southeast Univ, Sch Elect Sci & Engn, Nanjing 210096, Peoples R China
2.Minist Educ, Key Lab Microinertial Instrument & Adv Nav Techno, Nanjing 210096, Peoples R China
3.Southeast Univ, Suzhou Res Inst, Suzhou Key Lab Met Nanooptoelect Technol, Suzhou 215123, Peoples R China
4.Southeast Univ, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China
5.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Shuangliu, Peoples R China

Recommended Citation:
Zhu, Sheng-Qing,Zhang, Tong,Guo, Xin-Li,et al. Gold nanoparticle thin films fabricated by electrophoretic deposition method for highly sensitive SERS application[J]. NANOSCALE RESEARCH LETTERS,2012,7.
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