title: Easy preparation and characterization of highly fluorescent polymer composite microspheres from aqueous CdTe nanocrystals.
abstract: Fluorescent microspheres were easily fabricated from aqueous CdTe nanocrystals (NCs). The NCs, which had negative charges on the surface, were first extracted to chloroform by cationic surfactant octadecyl-p-vinyl-benzyldimethylammonium chloride (OVDAC) and then swollen into performed polystyrene (PS) microspheres. Through this method, strong photoluminescence (PL) of aqueous NCs was inherited in the resultant composite microspheres. Moreover, the NCs were firmly stabilized in the microspheres, withstanding not only polar solvents but also nonpolar solvents. UV-vis spectrum, PL spectrum, TEM, and confocal fluorescence microscopy were used to characterize the product.
authors.affiliation: Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.
authors.forename: Minjie
authors.initials: M
authors.lastname: Li
authors.forename: Hao
authors.initials: H
authors.lastname: Zhang
authors.forename: Junhu
authors.initials: J
authors.lastname: Zhang
authors.forename: Chunlei
authors.initials: C
authors.lastname: Wang
authors.forename: Kun
authors.initials: K
authors.lastname: Han
authors.forename: Bai
authors.initials: B
authors.lastname: Yang