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<strong>Synthesis and characterization of dodecanethiol-stabilized gold nanoparticles</strong>

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Title Statement <strong>Synthesis and characterization of dodecanethiol-stabilized gold nanoparticles</strong>
 
Added Entry - Uncontrolled Name Gathania, Arvind K.; National Institute of Technology, Hamirpur
 
Uncontrolled Index Term Nanoparticles; Fourier Transform Infrared Spectroscopy; Transmission Electron Microscopy; Ultraviolet -Visible spectroscopy
 
Summary, etc. <strong>Dodecanethiol-stabilized gold nanoparticles of different sizes were synthesized using Bi-phasic reduction method by varying the concentration of stabilizer. These particles were characterized using transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy (UV-Vis). TEM images show the average particle size of different samples ranging from ~1.7 nm to 5.7 nm. FTIR study confirms the linkage of thiol group and their partial crystalline self assembly onto the surface of nano gold particles. From the UV-Vis spectra, it is noticed that absorption peak position is sensitive to the size of the particles. Theoretical fit for absorbance spectra was obtained using Mie theory and the deviation from experimental results demonstrates the large size and shape distribution. A linear relationship between logarithms of extinction coefficient and particle diameter is obtained, which explains the extinction coefficient dependence on the size of the particle.</strong>
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2015-05-28 10:58:52
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJPAP/article/view/2383
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 52, ##issue.no## 2 (2014): Indian Journal of Pure & Applied Physics
 
Language Note en
 
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