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Optical Properties of Nanocrystalline Ag Doped Silica Inverse Opals

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Abstract:

Nanocrystalline Ag doped silica inverse opals were prepared by a sol-gel chemistry method via templating of polystyrene colloidal crystals. The ordered structures of colloidal crystal templates and inverse opals are characterized by scanning electron microscopy. Ag nanocrystals size is estimated as 20~30nm by Scherrer Formula from X-ray diffraction. The color and the stop band of the inverse opals are characterized by transmission spectrum. And five emission peaks of the nanocrystalline silver clusters are observed from fluorescence spectrum.

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Periodical:

Key Engineering Materials (Volumes 336-338)

Pages:

555-557

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.555

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Online since:

April 2007

Authors:

Ming Fu, Ji Zhou, Bo Li, Qun Fang Xiao, Yue Hui Wang, Long Tu Li

Keywords:

Fluorescence, Inverse Opals, Nanocrystalline Ag Doped Silica, Photonic Crystal (PC)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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