One-Pot Radiolytic Synthesis of Gold Nanorods and Their Optical Properties

被引：46

作者：

Abidi, Wafa ^{[2
]}

Selvakannan, P. R. ^{[2
]}

Guillet, Yanick ^{[1
,3
]}

Lampre, Isabelle ^{[2
]}

Beaunier, Patricia ^{[4
]}

Pansu, Brigitte ^{[5
]}

Palpant, Bruno ^{[1
,6
]}

Remita, Hynd ^{[2
]}

机构：

[1] Univ Paris 06, Inst NanoSci Paris, CNRS, UMR 7588, F-75015 Paris, France

[2] Univ Paris 11, Chim Phys Lab, CNRS, UMR 8000, F-91405 Orsay, France

[3] Univ Bordeaux 1, Mecan Phys Lab, CNRS, UMR 5469, F-33405 Talence, France

[4] Univ Paris 06, Lab React Surface, CNRS, UMR 7197, F-75252 Paris 05, France

[5] Univ Paris 11, Phys Solides Lab, CNRS, UMR 8502, F-91405 Orsay, France

[6] Ecole Normale Super, CNRS, UMR 8537, Ecole Cent Paris,Lab Photon Quant & Mol, F-92295 Chatenay Malabry, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 35期

关键词：

DISCRETE-DIPOLE APPROXIMATION; SEED-MEDIATED SYNTHESIS; POLY(VINYL ALCOHOL); HYDROXYL RADICALS; AQUEOUS-SOLUTIONS; SURFACE-PLASMONS; PULSE-RADIOLYSIS; SILVER ATOMS; ASPECT-RATIO; GROWTH;

D O I：

10.1021/jp104819c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：14794 / 14803

页数：10

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