Luminescence characteristics of rare-earth-doped barium hexafluorogermanate BaGeF₆ nanowires: fast subnanosecond decay time and high sensitivity in H₂O₂ detection.

ABSTRACT: Fluorides are promising host materials for optical applications. This paper reports the photoluminescent (PL) and cathodoluminescent (CL) characteristics of barium hexafluorogermanate BaGeF₆ nanowires codoped with Ce³⁺, Tb³⁺ and Sm³⁺ rare earth ions, produced by a solvothermal route. The synthesized BaGeF₆ nanowires exhibit uniform morphology and size distribution. X-ray diffraction divulges the one-dimensional growth of crystalline BaGeF₆ structure, with the absence of any impurity phases. Visible luminescence is recorded from the nanowires in green and red regions, when the nanowires are codoped with Ce³⁺/Tb³⁺, and Ce³⁺/Tb³⁺/Sm³⁺, respectively, under a UV excitation so

SUBMITTER: George G 

PROVIDER: S-EPMC9091314 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature