期刊文献+

Highly sensitive and homogeneous SERS substrate fabricated by a femtosecond laser combined with dewetting

Highly sensitive and homogeneous SERS substrate fabricated by a femtosecond laser combined with dewetting
原文传递
导出
摘要 We report a simple, cost-effective and repeatable method for fabricating a large area and uniform substrate for surface-enhanced Raman scattering(SERS). The silicon, micromachined by a femtosecond laser, is coated with gold film and then treated through the dewetting process. The morphology shows a higher electric field enhancement due to light trapping. The enhancement factor of the SERS substrate is 9.2 × 107 with a 5 nm-thick film coated. Moreover, it also exhibits a uniform signal through Raman mapping and chemical stability with the greatest intensity deviation of 6% after a month. The proposed technique provides an opportunity to equip microchips with the SERS capabilities of high sensitivity, chemical stability, and homogeneous signals. We report a simple, cost-effective and repeatable method for fabricating a large area and uniform substrate for surface-enhanced Raman scattering(SERS). The silicon, micromachined by a femtosecond laser, is coated with gold film and then treated through the dewetting process. The morphology shows a higher electric field enhancement due to light trapping. The enhancement factor of the SERS substrate is 9.2 × 107 with a 5 nm-thick film coated. Moreover, it also exhibits a uniform signal through Raman mapping and chemical stability with the greatest intensity deviation of 6% after a month. The proposed technique provides an opportunity to equip microchips with the SERS capabilities of high sensitivity, chemical stability, and homogeneous signals.
出处 《Chinese Optics Letters》 SCIE EI CAS CSCD 2015年第11期41-44,共4页 中国光学快报(英文版)
基金 supported by the National 973 Program of China(No.2011CB013000) the National Natural Science Foundation of China(Nos.91323301 and 51322511) the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Education of China(No.708018)
关键词 SERS deviation coated OPPORTUNITY fabricating TRAP SERS rate Highly sensitive and homogeneous SERS substrate fabricated by a femtosecond laser combined with dewetting
  • 相关文献

参考文献11

  • 1Te-Wei Chang,Manas Ranjan Gartia,Sujin Seo,Austin Hsiao,Gang Logan Liu.A wafer-scale backplane-assisted resonating nanoantenna array SERS device created by tunable thermal dewetting nanofabrication[J]. Nanotechnology . 2014 (14)
  • 2Njoki, Peter N.,Lim, I.-Im S.,Mott, Derrick,Park, Hye-Young,Khan, Bilal,Mishra, Suprav,Sujakumar, Ravishanker,Luo, Jin,Zhong, Chuan-Jian.Size correlation of optical and spectroscopic properties for gold nanoparticles. Journal of Physical Chemistry C . 2007
  • 3Wang Hui,Brandl Daniel W,Nordlander Peter,Halas Naomi J.Plasmonic nanostructures: artificial molecules. Accounts of Chemical Research . 2007
  • 4M. Fleischmann,P. J. HendraMc,A. J. Quillan.Raman Spectra of Pyridine Adsorbed at a silver Electrode, Chem. Physics Letters . 1974
  • 5D. L. Jeanmaire,and R. P. Van Duyne. Journal of Electroanalytical Chemistry . 1977
  • 6Campion A,Kambhampati P.Surface-enhanced Raman scattering. Chemical Communications . 1998
  • 7Moskovits M.Surface-enhanced spectroscopy. Reviews of Modern Physics . 1985
  • 8Catherine J Murphy,Anand M Gole,John W Stone,Patrick N Sisco,Alaaldin M Alkilany,Edie C Goldsmith,Sarah C Baxter.Gold Nanoparticles in Biology: Beyond Toxicity to Cellular Imaging. Accounts of Chemical Research . 2008
  • 9Diebold, Eric D.,Peng, Paul,Mazur, Eric.Isolating surface-enhanced Raman scattering hot spots using multiphoton lithography. Journal of the American Chemical Society . 2009
  • 10Hamdorf, Adam,Olson, Matthew,Lin, Cheng-Hsiang,Jiang, Lan,Zhou, Jun,Xiao, Hai,Tsai, Hai-Lung.Femtosecond and nanosecond laser fabricated substrate for surface-enhanced Raman scattering. Optics Letters . 2011

共引文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部