Home > Archive>Volume 13, Issue 1, 2017 >10-12. DOI:10.1007/s11801-017-6269-5
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Enhancement of R6G fluorescence by N-type porous silicon deposited with gold nanoparticles
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1. School of Information Science and Engineering, Xinjiang University, Urumqi 830046, China;2. The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China;3. Economy and Development Reform Commission, Urumqi High-tech Industrial Development Zone, Urumqi 830011, China

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    Abstract:

    By the electrochemical anodization method, we achieve the single-layer macroporous silicon on the N-type silicon, and prepare gold nanoparticles with sodium citrate reduction method. Through injecting the gold nanoparticles into the porous silicon by immersion, the fluorescence quenching mechanism of porous silicon influenced by gold nanoparticles is analyzed. Then the macroporous silicon deposited with gold nanoparticles is utilized to enhance the fluorescence of rhodamine 6G (R6G). It is found that when the macroporous silicon is deposited with gold nanoparticles for 6 h, the maximum fluorescence enhancement of R6G (about ten times) can be realized. The N-type porous silicon deposited with gold nanoparticles can be an excellent substrate for fluorescence detection.

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MO Jia-qing, JIANG Jing, ZHAI Zhen-gang, SHI Fu-gui, JIA Zhen-hong. Enhancement of R6G fluorescence by N-type porous silicon deposited with gold nanoparticles[J]. Optoelectronics Letters,2017,13(1):10-12

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History
  • Received:December 07,2016
  • Online: January 11,2017
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