Rare Metals

, Volume 38, Issue 12, pp 1178–1186 | Cite as

Design and fabrication of a new fluorescence enhancement system of silver nanoparticles-decorated aligned silver nanowires

  • Jian-Chao Wang
  • Hong-Sheng Luo
  • Ming-Hai Zhang
  • Xi-Hong Zu
  • Jie Zhang
  • Yu-Xin Gu
  • Guo-Bin YiEmail author


A new substrate, aligned Ag nanowires decorated with silver nanoparticle composite structure (AgNWs@AgNPs), was fabricated to investigate metal-enhanced fluorescence (MEF) and its mechanism. The new composite structure was fabricated via a three-phase interface assembly method followed by SnCl2 sensitization and AgNO3 reduction process. The size and distribution of the nanoparticles on silver nanowires increased with the sensitization and reduction cycles. The formation of AgNPs on the surfaces of AgNWs was confirmed by multiple characterization methods including scanning electron microscopy (SEM), transmission electron microscope (TEM), atomic force microscopy (AFM) and X-ray diffraction (XRD). The results show that the fluorescence intensity of the poly(3-hexylthiophene) (P3HT) on the composite structure was greatly enhanced compared with that on bare glass substrate, and the intensity increased with the increase in particle sizes and density. The mechanism was based on the increase in excitation rate and the radiation decay rate. The new type of substrate could serve as a good and efficient MEF substrate for high-performance fluorescence-based devices.


Fluorescence enhancement Aligned Ag nanowires Self-assembly Mechanism 



This work was financially supported by the National Natural Science Foundation of China (No. 51273048), Science and Technology Planning Project of Guangdong Province (No. 2017B090915004) and the Open Operation of Guangdong Provincial Key Laboratory of Advanced Coatings Research and Development (No. 2017B030314105).


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Copyright information

© The Nonferrous Metals Society of China and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhouChina
  2. 2.Guangdong Provincial Key Laboratory of Advanced Coatings Research and DevelopmentChina National Electric Apparatus Research Institute Co., Ltd.GuangzhouChina

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