title: An active-core/active-shell structure with enhanced quantum-cutting luminescence in Pr-Yb co-doped monodisperse nanoparticles.
abstract: Monodisperse Pr(3+)/Yb(3+):NaGdF₄@NaYF₄ active-core/inert-shell nanoparticles, which exhibit efficient near-infrared quantum-cutting luminescence, are successfully prepared. In order to relieve the adverse effect caused by concentration quenching in the core, the extra Yb(3+) ions are introduced into the shell, forming an active-core/active-shell structure which leads to a much intensified near-infrared emission.
authors: State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Fuzhou, 350002, P. R. China. yswang@fjirsm.ac.cn.
authors: Wenjuan
authors: W
authors: Zhu
authors: Daqin
authors: D
authors: Chen
authors: Lei
authors: L
authors: Lei
authors: Ju
authors: J
authors: Xu
authors: Yuansheng
authors: Y
authors: Wang