Dy3+ ions as optical probes for studying structure of boro-tellurite glasses

作者：Vu Phi Tuyen^*; Sengthong Bounyavong; Vu Xuan Quang; Phan Van Do; Ho Van Tuyen; Le Xuan Hung; Nguyen Trong Thanh; Nogami Masayuki; Hayakawa Tomokatsu; Bui The Huy^*

来源：Journal of Luminescence, 2016, 178: 27-33.

DOI：10.1016/j.jlumin.2016.05.027

• Boro-tellurite
• Dy3+
• JO-analysis
• Phonon side band
• Raman
• White light

Dy3+-doped glasses with various compositions (35+x)B2O3+(45 - x)TeO2+9.5ZnO+10Na(2)O+0.5Dy(2)O(3) (x=0; 10 and 20) were prepared by a melt-quenching technique. The Dy3+ ions are used as an optical probe, of which the Judd-Ofelt parameters, the phonon-side band, and the Raman spectra were quantitatively estimated to search the change of glass structure (the change of the ratio of [BO4] to [BO3] units, formation of the non-bridging oxygens (NBO-), the change of [TeO3] to [TeO4] units) as a function of the B2O3 content. The Omega(2) and Omega(6) values of Dy3+-doped boro-tellurite samples are larger than that of Dy3+-doped borate or tellurite sample. The CIE chromaticity color coordinates were calculated for the luminescence spectra of Dy3+ ions of the glasses with the different compositions and they were all located in the vicinity of white light center of the color coordination diagram.

• 出版日期2016-10