The Influence of Surface-Modification Technology on the Spectral Characteristics of Hydrophilic CdSe/ZnS Nanoparticles upon Interaction with Polyelectrolytes


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Abstract

The spectral and kinetic characteristics of CdSe/ZnS nanoparticles (NPs) surface-modified with cysteamine by two different methods are considered upon interaction with polyelectrolytes. With the use of steady-state and time-resolved fluorescence spectroscopies, it is shown that the fluorescence intensity and stability of NPs in the presence of polyelectrolytes depend on the surface-modification method. It is found that hydrophilic NPs obtained at the interface between two immiscible liquids (chloroform–water) are more resistant to aggregation.

About the authors

I. G. Motevich

Yanka Kupala Grodno State University

Author for correspondence.
Email: i.motevich@grsu.by
Belarus, Grodno, 230023

N. M. Popko

Yanka Kupala Grodno State University

Email: i.motevich@grsu.by
Belarus, Grodno, 230023

N. D. Strekal’

Yanka Kupala Grodno State University

Email: i.motevich@grsu.by
Belarus, Grodno, 230023

S. A. Maskevich

International Sakharov Environmental Institute of Belarusian State University

Email: i.motevich@grsu.by
Belarus, Minsk, 220070

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