title: Coordination polymer core/shell structures: Preparation and up/down-conversion luminescence.
abstract: Coordination polymer (CP) core-shell nanoparticles with Gd-based CP (GdCP) as core and Eu-based CP (EuCP) as shell have been successfully prepared. Allantoin was employed as the organic building block without the assistance of any template. The composition, size and structure of the core-shell nanospheres were well characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDX), powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FT-IR), thermo-gravimetric analysis (TG). Results show that the resultant cores are uniform nanospheres with diameter of approximately 45nm, while the diameters of the core-shell nanospheres are increased to approximately 60nm. The core-shell products show enhanced luminescence efficiency than the core under 980nm laser excitation and decreased down-conversion luminescence when excited at 394nm.
authors.affiliation: College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People's Republic of China.
authors.forename: Bingmei
authors.initials: B
authors.lastname: Li
authors.affiliation: College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People's Republic of China; Analytical and Testing Center, Jiangxi Normal University, Nanchang 330022, People's Republic of China.
authors.forename: Hualan
authors.initials: H
authors.lastname: Xu
authors.affiliation: College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People's Republic of China.
authors.forename: Chen
authors.initials: C
authors.lastname: Xiao
authors.affiliation: College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Shuai
authors.affiliation: College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People's Republic of China.
authors.forename: Weimin
authors.initials: W
authors.lastname: Chen
authors.affiliation: College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, People's Republic of China. Electronic address: slzhong@jxnu.edu.cn.
authors.forename: Shengliang
authors.initials: S
authors.lastname: Zhong
keywords: Coordination polymer; Core/shell; Luminescence; Nanostructures; Rare earth