Issue 63, 2014

A facile layer-by-layer assembly method for the fabrication of fluorescent polymer/quantum dot nanocomposite thin films

Abstract

We demonstrated an efficient and robust approach for the preparation of polymer/quantum dot (QD) nanocomposite thin films in nonpolar media. By employing photopolymerization based on the thiol-ene reaction, thiol-containing polymer with affinity groups for CdSe@CdS QDs was produced for the buildup of the polymer/CdSe@CdS QD nanocomposite thin films utilizing layer-by-layer assembly. The polymer/QD nanocomposite films were characterized by SEM, TEM, fluorescence spectrometry, thermogravimetric analysis, confocal laser scanning microscopy and time-resolved fluorescence spectrometry. The resulting free-standing polymer/QD nanocomposite films exhibit high fluorescent intensity, moderate transparency, good photostability and thermal stability. We further applied photolithographic patterning in conjunction with an LBL assembly method to fabricate a polymer/CdSe@CdS QD nanocomposite pattern on a flexible substrate. This versatile and facile method provides prospects for the design of novel photonic devices based on the polymer/QD nanocomposite thin films.

Graphical abstract: A facile layer-by-layer assembly method for the fabrication of fluorescent polymer/quantum dot nanocomposite thin films

Supplementary files

Article information

Article type
Paper
Submitted
21 May 2014
Accepted
23 Jul 2014
First published
23 Jul 2014

RSC Adv., 2014,4, 33206-33214

A facile layer-by-layer assembly method for the fabrication of fluorescent polymer/quantum dot nanocomposite thin films

F. Jin, M. Zheng, M. Zhang, Z. Zhao and X. Duan, RSC Adv., 2014, 4, 33206 DOI: 10.1039/C4RA04779F

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