Simultaneous Observation of Visible Upconversion and Near-Infrared Downconversion in SrF<sub>2</sub>:Nd<sup>3+</sup>/Yb<sup>3+</sup>/Er<sup>3+</sup> Nanocrystals and Their Application for Detecting Metal Ions under Dual-Wavelength Excitation
Linxuan Wang, Weiqiang Yang, Liang Li, Shuai Hu, Maohui Yuan, Zining Yang, Kai Han, Hongyan Wang, Xiaojun Xu
Abstract
NCs are further demonstrated to achieve a solid-state display under 980 nm excitation, exhibiting obvious "red" and "green" patterns by varying the doping rare earth ion concentrations.
Topics & Concepts
Photon upconversionLuminescenceMaterials scienceAnalytical Chemistry (journal)IonNanocrystalExcitationInfraredDopingDetection limitHydrothermal circulationChemistryOptoelectronicsOpticsNanotechnologyPhysicsSeismologyQuantum mechanicsOrganic chemistryChromatographyGeologyLuminescence Properties of Advanced MaterialsLuminescence and Fluorescent MaterialsLanthanide and Transition Metal Complexes