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A facile layer-by-layer assembly method for the fabrication of fluorescent polymer/quantum dot nanocomposite thin films
Jin, Feng1,2; Zheng, Mei-Ling1,2; Zhang, Mei-Lin1,2,4; Zhao, Zhen-Sheng1,2; Duan, Xuan-Ming1,2,3
2014
摘要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.
DOI10.1039/c4ra04779f
发表期刊RSC ADVANCES
ISSN2046-2069
卷号4期号:63页码:33206-33214
通讯作者Duan, XM (reprint author), Chinese Acad Sci, Tech Inst Phys & Chem, Lab Organ NanoPhoton, 29 Zhongguancun East Rd, Beijing 100190, Peoples R China.
收录类别SCI
WOS记录号WOS:000341287200011
语种英语