title: Self-assembled organic-inorganic hybrid nanocomposite of a perylenetetracarboxylic diimide derivative and CdS.
abstract: A perylenetetracarboxylic diimide derivative, N-n-hexyl-N'-(2-hydroxyethyl)-1,7-di(4'-t-butyl)phenoxy-perylene-3,4:9,10-tetracarboxylic diimide (HO-PDI), was synthesized and self-assembled as a monolayer thin solid film on the modified surface of a quartz substrate by an ester bond between -OH groups of HO-PDI molecules and -COOH groups of p-phthalic acid grafted onto the hydrophilic pretreated SiO(2) surface. An analysis of the spectral change revealed the J-aggregate nature of HO-PDI molecules in the obtained thin solid film. With this thin solid film of HO-PDI as a template, CdS nanoparticles were deposited on it in situ, which were further characterized by electronic absorption, fluorescence, and energy-dispersive X-ray spectroscopy (EDS). The morphology of CdS nanoparticles is disklike, and the diameter is ca. 140 nm as determined by atomic force microscopy (AFM). Furthermore, electron transfer between the organic layer and CdS nanoparticles was deduced through fluorescence quenching and theoretical analysis.
authors.affiliation: School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, University of Jinan, Jinan 250022, China. chm_chenyl@ujn.edu.cn
authors.forename: Yanli
authors.initials: Y
authors.lastname: Chen
authors.forename: Lina
authors.initials: L
authors.lastname: Chen
authors.forename: Guiju
authors.initials: G
authors.lastname: Qi
authors.forename: Haixia
authors.initials: H
authors.lastname: Wu
authors.forename: Yuexing
authors.initials: Y
authors.lastname: Zhang
authors.forename: Lin
authors.initials: L
authors.lastname: Xue
authors.forename: Peihua
authors.initials: P
authors.lastname: Zhu
authors.forename: Pan
authors.initials: P
authors.lastname: Ma
authors.forename: Xiyou
authors.initials: X
authors.lastname: Li