title: Poly (acrylic acid)-capped lanthanide-doped BaFCl nanocrystals: synthesis and optical properties.
abstract: Water-soluble lanthanide-doped BaFCl nanophosphors with the surface functionalized by a layer of poly (acrylic acid) are synthesized via a facile one-step solvothermal method. Intense long-lived luminescence is realized from visible to near-infrared (NIR) by doping with different lanthanide ions. The emission and excitation spectra of Eu(3+) indicate that the doped lanthanide ions occupy a site close to the surface of the nanoparticles. Strong NIR emissions of Nd(3+) and green luminescence of Tb(3+) using Ce(3+) as sensitizers are also achieved in BaFCl nanoparticles. The synthesized nanoparticles featuring long-lived luminescence in either visible or NIR regions may have potential applications as luminescent labels for biological applications.
authors.affiliation: Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Ju
authors.forename: Wenqin
authors.initials: W
authors.lastname: Luo
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Liu
authors.forename: Haomiao
authors.initials: H
authors.lastname: Zhu
authors.forename: Renfu
authors.initials: R
authors.lastname: Li
authors.forename: Xueyuan
authors.initials: X
authors.lastname: Chen
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D001464:Barium / Q000737:chemistry*; D002563:Cerium / Q000737:chemistry; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013725:Terbium / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D000180:Acrylic Resins; D028581:Lanthanoid Series Elements; D013725:Terbium; D001464:Barium; D002563:Cerium; C006903:carbopol 940