Thermal studies of soda glass metal nanocomposite synthesized by ion exchange
Tóm tắt
Soda glass metal nanocomposite having Ag nanoparticles has been synthesized by the combined use of ion exchange method and subsequent thermal annealing. Remarkable changes in photoluminescence and UV-Visible spectra of resulting nanocomposite as a function of post annealing temperature has been observed. These changes can be attributed to the structural rearrangement of silver during heat treatment. In UV-Visible spectra, characteristic surface plasmon resonance peak of silver nanoparticles has been observed around 430 nm. Photoluminescence spectra of the silver exchanged soda glass samples show a dominant peak at 547 nm. At an annealing temperature of 450°C photoluminescence intensity is the maximum followed by a decreasing trend upto 600°C.
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