Back to Search
Start Over
Preparation and optical properties of colloidal silver nanoparticles at a high Ag+ concentration
- Source :
-
Materials Letters . Jun2006, Vol. 60 Issue 12, p1496-1501. 6p. - Publication Year :
- 2006
-
Abstract
- Abstract: We have prepared colloidal silver nanoparticles by reducing a high molar concentration of AgNO3 (up to 0.735 M) with glycerol in the presence of m-phenylenediamine. These silver nanoparticles had anisotropic shapes, including truncated rectangles, truncated triangles, and spheroid-type particles. The UV–Vis spectra of these nanoparticle systems display two distinct plasmon modes and a shoulder that correspond to the in-plane dipole, in-plane quadruple, and out-of-plane dipole resonances, respectively. The size and coating thickness of the nanoparticles are controllable while retaining their size distribution. We have used scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM) and, UV–Vis spectroscopy to characterize the silver products obtained. [Copyright &y& Elsevier]
- Subjects :
- *NANOPARTICLES
*COLLOIDAL silver
*GLYCERIN
*ELECTRON microscopy
Subjects
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 60
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 20010070
- Full Text :
- https://doi.org/10.1016/j.matlet.2005.11.058