Please use this identifier to cite or link to this item: https://doi.org/10.1088/0957-4484/19/7/075601
Title: A single-step synthesis of gold nanochains using an amino acid as a capping agent and characterization of their optical properties
Authors: Polavarapu, L. 
Xu, Q.-H. 
Issue Date: 2008
Citation: Polavarapu, L., Xu, Q.-H. (2008). A single-step synthesis of gold nanochains using an amino acid as a capping agent and characterization of their optical properties. Nanotechnology 19 (7) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-4484/19/7/075601
Abstract: We demonstrated a simple single-step synthesis of gold nanochains by reducing aqueous chloroaurate ions (AuCl4 -) with sodiumborohydride (NaBH4) in the presence of an amino acid (glutamic acid and histidine) as a stabilizer. The structure and optical properties of gold nanochains and nanowires were characterized by transmission electron microscopy, UV-visible spectroscopy, infrared spectroscopy and femtosecond z-scan measurements. The results suggested that the gold nanochains and nanowires were formed via the nanospheres fusing into one another by an oriented attachment mechanism through dipole-dipole interactions. The z-scan measurements on Au nanowires showed a transition from saturable absorption to reverse saturable absorption as the pump intensity increased. © IOP Publishing Ltd.
Source Title: Nanotechnology
URI: http://scholarbank.nus.edu.sg/handle/10635/93009
ISSN: 09574484
DOI: 10.1088/0957-4484/19/7/075601
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