Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 5, Pages 1034-1037Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.03.005
Keywords
Gold nanoparticles; Indium tin oxide; Electrochemical deposition; Refractive index; Sensor
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Funding
- National Natural Science Foundation of China [20675055]
- science foundation of the education bureau of Jiangsu Province [07KJBI 50101]
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Large size gold nanoparticles (GNPs) were directly deposited onto the indium tin oxide (ITO) glass surface by cyclic voltammetric method. The GNPs on ITO substrate were characterized by means of scanning electron microscopy (SEM), UV-vis spectroscopy and X-ray diffraction (XRD). The nucleation and growth steps were controllable in the GNPs deposition procedure. The addition of chloride ion in the electrolysis affected the size and density of GNPs on the ITO surface. The response of refractive index for various organic solvents was also investigated. The sensitivity of refractive index increased as GNPs became larger. (C) 2009 Elsevier B.V. All rights reserved.
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