Optical band gaps and spectroscopy properties of Bim+/Eun+/Yb3+ co-doped (m=0, 2, 3; and n=2, 3) zinc calcium silicate glasses

被引：3
作者：
Dan, Ho Kim [1 ,2 ]
Trung, Nguyen Dinh [3 ,4 ]
Tam, Nguyen Minh [5 ]
Ha, L. T. [6 ]
Ha, C. V. [7 ]
Zhou, Dacheng [8 ]
Qiu, Jianbei [8 ]
机构：
[1] Van Lang Univ, Sci & Technol Adv Inst, Opt Mat Res Grp, Ho Chi Minh City, Vietnam
[2] Van Lang Univ, Fac Appl Technol, Sch Technol, Ho Chi Minh City, Vietnam
[3] Dalat Univ, Ctr Anal & Testing, Lam Dong, Vietnam
[4] Dalat Univ, Fac Chem & Environm, Lam Dong, Vietnam
[5] Univ Phan Thiet, Fac Basic Sci, 225 Nguyen Thong, Phan Thiet, Binh Thuan, Vietnam
[6] TNU Univ Sci, Inst Sci & Technol, Thai Nguyen 250000, Vietnam
[7] TNU Univ Educ, Fac Phys, Thai Nguyen 250000, Vietnam
[8] Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Adv Mat Yunnan Prov, Kunming 650093, Peoples R China
来源：
RSC ADVANCES | 2023年 / 13卷 / 10期
关键词：
UP-CONVERSION LUMINESCENCE; ENERGY-TRANSFER; EU3+; PHOTOLUMINESCENCE; PHOSPHOR; ENHANCEMENT; EMISSION;
D O I：
10.1039/d2ra07310b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, the indirect/direct optical band gaps and spectroscopy properties of Bim+/Eun+/Yb3+ co-doped (m = 0, 2, 3; and n = 2, 3) zinc calcium silicate glasses under different excitation wavelengths were investigated. Zinc calcium silicate glasses with the main compositions of SiO2-ZnO-CaF2-LaF3-TiO2 were prepared by the conventional melting method. EDS analysis was performed to determine the elemental composition existing in the zinc calcium silicate glasses. Visible (VIS)-, upconversion (UC)-, and near-infrared (NIR)-emission spectra of Bim+/Eun+/Yb3+ co-doped glasses were also investigated. Indirect optical band gaps and direct optical band gaps of Bim+-, Eun+- single-doped, and Bim+-Eun+ co-doped SiO2-ZnO-CaF2-LaF3-TiO2-Bi2O3-EuF3-YbF3 zinc calcium silicate glasses were calculated and analyzed. CIE 1931(x, y) color coordinates for VIS and UC emission spectra of Bim+/Eun+/Yb3+ co-doped glasses were determined. Besides, the mechanism of VIS-, UC-, NIR-emissions, and energy transfer (ET) processes between Bim+ and Eun+ ions were also proposed and discussed.
引用
收藏
页码：6861 / 6871
页数：11
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