Paper Title:
Effect of Organic Capping on the Magnetic Properties of Au Nanoparticles
  Abstract

The magnetic and optical properties of regioregular poly(3-hexylthiophene)-capped Au nanoparticles (NPs) have been investigated in order to clarify the effectiveness of polythiophene capping on the induction of ferromagnetism in Au. The room-temperature magnetization curve of the polythiophene-capped Au NPs exhibits a clear hysteresis behavior with a spontaneous magnetization of 8.5 x 10-3 emu/g. The average magnetic moment of the surface Au atoms is estimated to be 2.6 x 10-3 B. The ultraviolet-visible spectrum shows a clear sign of the surface plasmon absorbance of metallic Au which reflects the week character of the chemical bond between the Au and S atoms on capping surface. Our results show clearly that Au NPs capped with polythiophene can be ferromagnetic.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
1174-1177
DOI
10.4028/www.scientific.net/MSF.654-656.1174
Citation
H. Zhang, K. Suzuki, K. Saito, J.S. Garitaonandia, E. Goikolea, M. Insausti, "Effect of Organic Capping on the Magnetic Properties of Au Nanoparticles", Materials Science Forum, Vols. 654-656, pp. 1174-1177, 2010
Online since
June 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Sharmin Haq, Tasnuva Ashrafee, Mahmuda Begum, Tasmia Sharmin, Nirban Bhowmick, Zahid Hasan Mahmood
Abstract:The new emergent properties of nanoparticles include quantam size effect, nonlinear optical properties and thus the nanomaterials have...
303
Authors: Manoranjan Behera, Shanker Ram
Chapter 3: Nanomaterials
Abstract:Since the discovery, gold nanoparticles (GNPs) have been attracting scientific and research communities owing to their biocompatibility,...
115
Authors: Li Ping Chen
Chapter 2: Materials, Materials Processing and Chemical Engineering
Abstract:The hydrophobic gold nanoparticles with monodispersity are synthesized by using n-butanol reduction in situ under the condition of alkali...
203