Ultraviolet light induced white light emission in Ag and Eu^3+ co-doped oxyfluoride glasses

Preparation and luminescence of bulk oxyfluoride glasses doped with Ag nanoclusters.

Bulk oxyfluoride glasses doped with Ag nanoclusters have been prepared using the melt quenching technique. When pumped in the absorption band of Ag nanoclusters between 300 to 500 nm, these glasses emit a very broad luminescence band covering all the visible range with a weak tail extending into the near infrared. The maximum of the luminescence band and its color shifts to the blue with a shor...

Ultraviolet-light-induced processes in germanium-doped silica

Novel Eu3+-doped red-emitting phosphor Gd2Mo3O9 for white-light-emitting-diodes (WLEDs) application

Xiaoxia Zhao a,b, Xiaojun Wang a,∗, Baojiu Chen a,c, Qingyu Meng a,b, Weihua Di a,b, Guozhong Ren a,b, Yanmin Yang a,b a Lab of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, PR China b Graduate School of Chinese Academy of Sciences, Beijing 100039, PR China c Department of Physics, Dalian Maritime Univer...

Development of ytterbium-doped oxyfluoride glasses for laser cooling applications

Oxyfluoride glasses doped with 2, 5, 8, 12, 16 and 20 mol% of ytterbium (Yb(3+)) ions have been prepared by the conventional melt-quenching technique. Their optical, thermal and thermo-mechanical properties were characterized. Luminescence intensity at 1020 nm under laser excitation at 920 nm decreases with increasing Yb(3+) concentration, suggesting a decrease in the photoluminescence quantum ...

Ag-doped TiO2 Nanocomposite Prepared by Sol Gel Method: Photocatalytic Bactericidal Under Visible Light and Characterization

In  this  reaserch,  photocatalyst  titanium  dioxide  was  doped  with silver  and modified  by  polyethylene  glycol  by  sol  gel method  and the  samples  were  characterized  by  X-ray  diffraction  (XRD)  and scanning  electron  microscopy  (SEM).  The  purpose  of  the  present study  was  to  evaluate  the  photocatalytic  bactericidal  effects  of prepared nanocomposite on human p...