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DDA-Based Simulation of UV-vis Extinction Spectra of Ag Nanorods Synthesized Through Seed-Mediated Growth Process.
- Source :
-
Plasmonics . Mar2011, Vol. 6 Issue 1, p43-51. 9p. 1 Color Photograph, 1 Black and White Photograph, 1 Diagram, 5 Graphs. - Publication Year :
- 2011
-
Abstract
- Present investigation demonstrates a very simple seed-mediated route for the synthesis of silver nanorods in aqueous solution. Central to the concept of seed-mediated growth of nanoparticles is that small nanoparticle seeds serve as nucleation centres to grow nanoparticles to a desired size and shape. Hydroxypropyl methyl cellulose (HPMC) has been used as soft template for one-dimensional growth of silver particles. Morphological, structural and spectral changes that are associated with the seed-mediated growth of the nanoparticles in presence of HPMC are characterized using UV-vis and HR-TEM spectroscopic study. Simulation of UV-vis extinction spectra of our synthesized silver nanorods has been carried out using discrete dipole approximation methodology. The broad red-shifted longitudinal extinction band of green-coloured silver sol has been explained, due to the presence of silver nanorods of different aspect ratios. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15571955
- Volume :
- 6
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Plasmonics
- Publication Type :
- Academic Journal
- Accession number :
- 59460094
- Full Text :
- https://doi.org/10.1007/s11468-010-9167-2