Photoluminescence properties of Sm(3+) ions doped oxyfluoride calcium borosilicate glasses

A series of Sm(3+) ions doped oxyfuloride calcium borosilicate glasses were prepared by high temperature melting method. The glass samples were characterized by photoluminescence spectra and decay curves. The reddish orange emitting was observed in the emission spectra of Sm(3+) ions doped oxyfuloride calcium borosilicate glasses excited by ultraviolet light. It was found that the decay curves followed the single-exponential decay. Furthermore, the chromaticity parameters and luminescent lifetime could be realized by varying the content of CaF(2) in the glass matrix, which makes these glasses good candidates for light emitting diodes (LEDs).