Local structure and luminescent properties of lead phosphate glasses containing rare earth ions

Local structure and luminescent properties of lead phosphate glasses containing rare earth ions were studied. Optically active ions such as Eu3+, Dy3+, Tb3+ and Er3+ were chosen as dopants. The local structure was verified using X-ray diffraction and Fourier transform infrared (FT-IR) spectroscopy. The visible luminescence bands recorded for the studied samples corresponded to 5D0→7FJ (J=0÷4) transitions of Eu3+, 4F9/2→6HJ/2 (J=11÷15) transitions of Dy3+, 5D3→7FJ' (J'=1÷6) and 5D4−7FJ (J=3÷6) transitions of Tb3+, and 4S3/2→4I15/2 transitions of Er3+.