Abstract

Photon conversion is exhibited in a borate (LKZBSB) glass system containing ${\mathrm{Eu}}^{3+}$, and the enhanced characteristic emissions of ${\mathrm{Eu}}^{3+}$ with the codoping of ${\mathrm{Ce}}^{3+}$ have been verified. A large Judd–Ofelt intensity parameter ${\mathrm{\Omega }}_2$ of ${\mathrm{Eu}}^{3+}$ indicates a high asymmetrical and strong covalent environment around rare-earth (RE) ions in LKZBSB glasses and spontaneous emission probability and a maximum emission cross section of the dominant ${{}^5\mathrm{D}}_0\to {}^7{\mathrm{F}}_2$ transition were derived to be $370{\mathrm{s}}^{-1}$ and $1.28\times {10}^{-21}{\mathrm{cm}}^2$, respectively, revealing the potential $\mathrm{UV}\to \text{visible}$ photon-conversion capacity of ${\mathrm{Eu}}^{3+}$. Absolutely quantitative evaluation illustrates that ${\mathrm{Eu}}^{3+}$ is a favorable photon-conversion center to achieve high photon-conversion efficiency. The addition of ${\mathrm{Ce}}^{3+}$ is beneficial to realizing effective red emission of ${\mathrm{Eu}}^{3+}$, which possesses commercial value by decreasing the dopant of expensive europium compounds. As an expectation, this photon-conversion LKZBSB glass system can promote the development of a photon downconversion layer for solar cells, which are particularly used in outer space with intense UV radiation.

© 2016 Optical Society of America

Dy³⁺ doped borate glasses for laser illumination

X. M. Zang, D. S. Li, E. Y. B. Pun, and H. Lin
Opt. Mater. Express 7(6) 2040-2054 (2017)

Broadband fluorescence emission of Eu³⁺ doped germanotellurite glasses for fiber-based irradiation light sources

F. Wang, L. F. Shen, B. J. Chen, E. Y. B. Pun, and H. Lin
Opt. Mater. Express 3(11) 1931-1943 (2013)

Energy transfer and thermal stability in Bi³⁺/Eu³⁺ co-doped germanium-borate glasses for organic-resin-free UV LEDs

X. Y. Liu, H. Guo, S. X. Dai, M. Y. Peng, and Q. Y. Zhang
Opt. Mater. Express 6(11) 3574-3585 (2016)

Two-photon, three-photon, and four-photon near-infrared quantum cutting luminescence of an Er³⁺ activator in tellurium glass phosphor

Xiaobo Chen, Song Li, Kezhi Wang, Zhenglong Wu, Guoying Zhao, Jingfu Tao, Hui Ma, Wei Lin, Hailing Liu, Lili Hu, Ping Guo, and Gregory J. Salamo
Appl. Opt. 55(12) 3343-3350 (2016)

Infrared radiation properties of Ho³⁺ in multicomponent germanium tellurite glasses

Z. Q. Sui, B. J. Chen, E. Y. B. Pun, and H. Lin
Appl. Opt. 54(19) 5976-5982 (2015)