Absorption and emission spectroscopy of Eu3+ in metaphosphate glasses

摘要: Optical absorption and emission spectra of ${\mathrm{Eu}}^{3+}$ in Ba(${\mathrm{PO}}_{3}$${)}_{2}$, Zn(${\mathrm{PO}}_{3}$${)}_{2}$, Pb(${\mathrm{PO}}_{3}$${)}_{2}$ glasses are reported. Judd-Ofelt intensity parameters for f-f transitions were derived from the integrated used to calculate spontaneous probabilities $^{5}$${\mathit{D}}_{0}$ state. Fluorescence-line-narrowed excited by $^{5}$${\mathit{D}}_{0}$${\ensuremath{\leftarrow}}^{7}$${\mathit{F}}_{0}$ transition was study local structure around ion. A phenomenological crystal-field analysis conducted using ${\mathit{C}}_{2\mathit{v}}$ symmetry, it found that sites occupied adequately described Brecher Riseberg's model. The influence network modifier ions (Ba, Zn, Pb) on major parameter ratio (${\mathit{B}}_{22}$/${\mathit{B}}_{20}$ ${\mathit{B}}_{44}$/${\mathit{B}}_{40}$) is discussed. Furthermore, shown affect properties Eu-O bond, and, consequently, strength.