Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (11): 2671-2676.doi: 10.3866/PKU.WHXB20111135

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

High Density Attachment of Silver Nanoparticles onto an NH2+ Ion Implanted Indium Tin Oxide Glass Substrate

LI Shuo-Qi2, LIU Lu3, TIAN Hui-Feng2, HU Jing-Bo1,2   

  1. 1. Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China;
    2. College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China;
    3. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2011-08-01 Revised:2011-09-06 Published:2011-10-27
  • Contact: HU Jing-Bo
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20211130505) and Fundamental Research Funds for the Central Universities of China.

Abstract: An effective approach to attach silver nanoparticles (AgNPs) directly onto an indium tin oxide (ITO) surface with high density was reported. An NH2+ ion implanted ITO (NH2/ITO) film was prepared and the AgNPs were adsorbed onto the surface of the obtained NH2/ITO film resulting in an AgNPs-attached NH2/ITO (AgNPs/NH2/ITO) substrate. Characterization of stepwise changes in the ITO, NH2/ITO, and AgNPs/NH2/ITO surfaces were carried out using Fourier transform infrared (FT-IR) spectrometry, X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), scanning electron microscopy (SEM), ultravioletvisible (UV-Vis) spectroscopy, and electrochemical methods. Cyclic voltammtric voltammetry results indicate that the immobilized AgNPs on the NH2/ITO electrode gave excellent electrochemical properties, implying facile electrochemical communication between the AgNPs and the ITO substrate through theby implanted amino groups. Thus, the AgNPs/NH2/ITO surfaces are promising as new functional interfaces because AgNPs can be attached to surfaces without the use of organic binding molecules.

Key words: Ion implantation, Assembly, Silver nanoparticle, Indium tin oxide


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