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                            Library & Multimedia
 Photoinduced Shape Evolution: From Triangular to Hexagonal Silver Nanoplates
NCJ Number
              255343
Journal

*Journal of Physical Chemistry C* Volume: 111 Dated: 2007 Pages: 18055-18059
Author(s)
          Jing An;
                        Bin Tang;
                        Xiaohua Ning;
                        Ji Zhou;
                        Shupng Xu;
                        Bing Zhao;
                        Weiqing Xu;
                        Charlie Corredor;
                        John R. Lombardi
Date Published

2007
Length
              5 pages
Annotation
              After successfully using the solution phase, the authors have prepared, in large quantities, uniform hexagonal silver nanoplates developed from silver triangular nanoprims by using a photoinduced technique.
Abstract
              The growth process was characterized by ultraviolet−visible (UV−vis) spectroscopy, transmission electron microscope (TEM), and high-resolution transmission electron microscope (HRTEM). The UV−vis spectra showed that three bands of hexagonal silver nanoplates appear at 341 (weak), 368 (medium), and 498 (strong) nm. TEM images showed that hexagonal silver nanoplates had an average edge size of 25.9 nm and thickness of 15.7 ± 1.0 nm. The mechanism of the conversion from triangular to hexagonal nanoplates has also been studied. Triangular silver nanoplates were at first fabricated through seed-mediated growth of silver particles in the presence of trisodium citrate. Subsequently, the truncation of triangular nanoplates led to the formation of hexagonal nanoplates. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2006-DN-BX-K034


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Award
        Development of Advanced Raman Spectroscopy Methods and Databases for the Evaluation of Trace Evidence and the Examination of Questioned Documents
    
  
  
Date Published: January 1, 2007
    
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