One-Pot Radiolytic Synthesis of Gold Nanorods and Their Optical Properties
Langue
en
Article de revue
Ce document a été publié dans
Journal of Physical Chemistry C. 2010-09, vol. 114, n° 35, p. 4794–14803
American Chemical Society
Résumé en anglais
A novel one-pot synthesis method to prepare gold nanorods of different aspect ratios using radiolysis is presented. The gold nanorods are synthesized by radiolytic reduction of Au-III complexes in a micellar solution formed ...Lire la suite >
A novel one-pot synthesis method to prepare gold nanorods of different aspect ratios using radiolysis is presented. The gold nanorods are synthesized by radiolytic reduction of Au-III complexes in a micellar solution formed by a mixture of cationic surfactants (cetyltrimethylammonium bromide and tetraoctylammonium bromide) and in the presence of acetone and silver ions. The mechanisms of reduction of gold complexes and formation of the nanorods are discussed. The nanorods can be trapped in a poly(vinyl alcohol) gel formed under irradiation. The UV-visible absorption spectra of nanorod solutions are compared with calculations performed by using the discrete dipole approximation method, underlying the effect of the rod aspect ratio distribution.< Réduire
Mots clés en anglais
NANOPARTICLES
ASPECT-RATIO
PULSE-RADIOLYSIS
SILVER ATOMS
SEED-MEDIATED GROWTH
DISCRETE-DIPOLE APPROXIMATION
AQUEOUS-SOLUTION
POLY(VINYL ALCOHOL)
HYDROXYL RADICALS
SURFACE-PLASMONS
Origine
Importé de halUnités de recherche