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http://dx.doi.org/10.7464/ksct.2014.20.2.141

A Study on Optical Properties of Nanocomposite Composed of Au Nanorods and Organic Dyes  

Kim, Ki-Se (Department of Chemistry, Seoul National University)
Yoo, Seong Il (Department of Polymer Engineering, Pukyong National University)
Sohn, Byeong-Hyeok (Department of Chemistry, Seoul National University)
Publication Information
Clean Technology / v.20, no.2, 2014 , pp. 141-145 More about this Journal
Abstract
In this study, we studied optical properties on the layer-by-layer (LbL) assemblies consisting of Au nanorods and organic dyes. For this purpose, poly (allylamine hydrochloride), PAH and poly (styrene sulfonate), PSS were selected as ionic polymers and rhodamine B isothiocyanate (RB) was utilized as an organic dye based on its spectral overlap with plasmon band of Au nanorods. In the view point of assembling methods, RB was covalently attached to PAH, then, LbL structure of Au [PSS/PAH]2/PSS/PAH-RB was prepared by sequential coating of PAH, PSS, PAH-RB on Au nanorods. Since the prepared LbL assembly exhibits both plasmonic and fluorescent properties, we studied the mutual nanorod-dye properties by dissolving Au nanorods.
Keywords
Layer-by-layer (LbL) assembly; Au nanorod; Surface plasmon; Organic dye; Fluorescence;
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