Journal
JOURNAL OF CRYSTAL GROWTH
Volume 372, Issue -, Pages 116-120Publisher
ELSEVIER
DOI: 10.1016/j.jcrysgro.2013.03.017
Keywords
Crystal morphology; Nanostructure; Growth from solutions; Nanomaterials
Funding
- National Natural Science Foundation of China [51272010]
- Program for New Century Excellent Talents in University [NCET-12-0035]
- Research Fund for the Doctoral Program of Higher Education [20121102120001]
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Silver nanocrystals with controlled morphologies were facilely synthesized via gamma-irradiation on aqueous solutions containing AgNO3 and poly(vinyl pyrrolidone)(PVP) by adjusting the adsorption dose. UV-vis spectroscopy, TEM, XRD and X-ray photoelectron spectroscopy were used to characterize these silver nanocrystals. Spherical silver nanoparticles with diameter of similar to 20 nm were formed irradiated by gamma-ray with dose of 12 kGy, and one-dimensional silver nanowires with average diameter of 30 nm and length up to 20-30 mu m were obtained with dose increased to 36 kGy. In this process, gamma-ray and PVP have synergistic effects on the formation of silver nanocrystals, leading to the formation of highly pure phase, as well as a uniform size of each structure. (C) 2013 Elsevier B.V. All rights reserved.
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