A new colloidal technique for the synthesis of lead sulfide nanoparticles

Askari, M ; Sharif University of Technology | 2003

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2003
  3. Abstract:
  4. In this paper, the use of colloid chemistry in the synthesis of 5 A° lead sulfide semiconductor nanoparticles has been described. Here, hydrogen sulfide gas dissolved in water is used for the chemical reaction, instead of purging the H2S gas into the solution, which has an influence on particle size. In this technique, the growth of particles was controlled by the addition of EDTA. A fast evolution of the optical absorption spectrum demonstrated the following synthesis. Soon after synthesis reaction, the sample exhibits a structural absorption spectrum with one well-defined peak in a 240 nm wavelength. The absorption spectrum shows a featureless structure, with no tail near the absorption edge being observed
  5. Keywords:
  6. Colloid ; Sulfide ; Nanoparticle ; Lead
  7. Source: Scientia Iranica ; Volume 10, Issue 3 , 2003 , Pages 357-360 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_2645.html