Abstract
Er3+/Yb3+ co-doped transparent glass ceramics containing Na3.6Y1.8(PO4)3 crystals were prepared by high-temperature melting and subsequent heat treatment the precursor glass, and their up-conversion luminescent properties were investigated. The optimum heat treatment condition of glass at 630 °C for 2 h were determined by a series of experimental results, and confirmed the existence of Na3.6Y1.8(PO4)3 crystals in glass ceramics. The up-conversion luminescence spectra of the glass ceramic samples under pulsed excitation at 980 nm revealed luminescence bands corresponding to Er3+ ion transitions in the green (4F7/2-4I15/2, 2H12/2-4I15/2,4S3/2-4I15/2) and red (4F9/2 - 4I15/2) spectral regions. The fluorescence spectra reaches a maximum when the molar ratio of Er2O3 to Yb2O3 is 1:7. Luminescence quantum yield of the samples was measured by using an integrating sphere. The transmission spectra proved that the glass ceramics sample still maintained a high transparency up to 83% in the visible region.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
