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Sensing Characteristics of the Gold-Silver Alloy Nanoparticles Assembled Waveguided Metallic Photonic Crystals
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Institute of Information Photonics Technology,College of Applied Sciences,Beijing University of Technology

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The National Natural Science Foundation of China (11304005) and the Beijing Educational Commission(KM201510005030)

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    Abstract:

    By improving Brust method, we synthesize 1-hexanthiol modified gold-silver alloy nanoparticles with an atomic composition of Ag0.66Au0.33. By using the alloy nanoparticles as “building block”, we successfully assemble one-dimensional waveguided alloy photonic crystals through a solution processible method. Under the same conditions, the sensitivity of the biosensor built with the waveguided alloy photonic crystals is 2.5 times that of the similar structure made of pure gold. Gold-silver alloy nanoparticles assembled waveguided metallic photonic crystals exhibits potential application in biosensors due to its low-cost fabrication process and simple testing methods.

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[Mu Yunyun, Liu Hongmei, Li Hang, Han Jia, Huang Cuiying, Wang Meng, Zhai Tianrui, Zhang Xinping. Sensing Characteristics of the Gold-Silver Alloy Nanoparticles Assembled Waveguided Metallic Photonic Crystals[J]. Rare Metal Materials and Engineering,2019,48(9):2879~2884.]
DOI:10.12442/j. issn.1002-185X.20180367

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History
  • Received:April 12,2018
  • Revised:May 31,2018
  • Adopted:June 01,2018
  • Online: October 09,2019
  • Published: