Improved scintillation performance of neodymium ions through blocking energy migration from activators to surface defects

Scintillators that convert ionizing radiation into visible photons have been broadly studied owing to their potential applications in security inspection and medical imaging fields. Compared with visible emission wavelengths, the near-infrared light usually possesses deeper penetration depth in serveral cases. Herein, BaGdF 5 : Ce@BaGdF 5 : Nd@BaYF 5 core/dual-shell nanocrystals are employed to achieve efficient NIR fluorescence emission under...