Nano Archive

Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition

Navaladian, S. and Viswanathan, B. and Varadarajan, T. K. and Viswanath, R. P. (2009) Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition. Nanoscale Research Letters, 4 (5). pp. 471-479.

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Official URL: http://www.springerlink.com/content/a4310717023865...

Abstract

Worm-like nanorods and nanospheres of silver have been synthesized by photochemical decomposition of silver oxalate in water by UV irradiation in the presence of CTAB and PVP, respectively. No external seeds have been employed for the synthesis of Ag nanorods. The synthesized Ag colloids have been characterized by UV-visible spectra, powder XRD, HRTEM, and selected area electron diffraction (SAED). Ag nanospheres of average size around 2 nm have been obtained in the presence of PVP. XRD and TEM analyses revealed that top and basal planes of nanorods are bound with 111 facets. Williamson–Hall plot has revealed the presence of defects in the Ag nanospheres and nanorods. Formation of defective Ag nanocrystals is attributed to the heating effect of UV-visible irradiation.

Item Type:Article
Uncontrolled Keywords:Ag nanorods - Nanospheres - CTAB - PVP - Photochemical decomposition - WH plot
Subjects:Material Science > Nanofabrication processes and tools
ID Code:4326
Deposited By:Lesley Tobin
Deposited On:24 Mar 2009 15:12
Last Modified:24 Mar 2009 15:12

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