Journal
MATERIALS LETTERS
Volume 62, Issue 17-18, Pages 3103-3105Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2008.01.138
Keywords
nanomaterials; luminescence; green nanochemistry
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A facile bottom-up green synthetic route using green tea (Camellia sinensis) extract as reducing and stabilizing agent produced gold nanoparticles and silver nanostructures in aqueous solution at ambient conditions. Colloidal systems of silver and gold nanoparticles exhibit highly efficient single photon-induced luminescence. This optical response can be manipulated by changing concentrations of metal ions and the quantity of reducing agent, which plays a crucial role in formation, growth and luminescence response of these noble-metal nanostructures. (c) 2008 Elsevier B. V. All rights reserved.
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