Temperature affects on the photoluminescence and Judd-Ofelt intensity parameters of CaMoO4:Eu3+nanophosphor

被引：9
|
作者：
Manh, Nhuong Chu [1 ]
Nguyen, Lan T. H. [1 ]
Xuan, Truong Mai [1 ]
Do Tra, Huong [1 ]
Duong, Thi Tu Anh [1 ]
Nguyen, Loan T. T. [1 ]
Van Pham, Huan [2 ]
Ha, Minh Ngoc [3 ]
Nguyen, Van Hao [4 ]
Chau, Hung Dung [5 ]
Tran, Thi Kim Ngan [5 ]
机构：
[1] Thai Nguyen Univ Educ, Fac Chem, Thai Nguyen City 24000, Vietnam
[2] HaNoi Univ Sci & Technol, Adv Inst Sci & Technol, Hanoi City 100000, Vietnam
[3] Vietnam Natl Univ, Univ Sci, Hanoi City 100000, Vietnam
[4] TNU Univ Sci, Inst Sci & Technol, Thai Nguyen City 24000, Vietnam
[5] Nguyen Tat Thanh Univ, Inst Appl Technol & Sustainable Dev, Ho Chi Minh City 700000, Vietnam
来源：
JOURNAL OF LUMINESCENCE | 2023年 / 258卷
关键词：
Photoluminescence; Judd-ofelt; Hydrothermal; CaMoO4; CAMOO4 EU3+; PHOSPHOR; EMISSION; IONS;
D O I：
10.1016/j.jlumin.2023.119776
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Eu3+ doped CaMoO4 nanophosphors were synthesized by hydrothermal method. X-ray powder diffraction analysis confirmed that all the compounds were crystallized in the scheelite-type tetragonal structure with I41/a (International Number 88) space group. The structural analysis and surface morphology were investigated by field emission scanning electron microscopy spectroscopy techniques. Photoluminescence (PL) spectra of Eu3+ doped CaMoO4 nanophosphors show emission peak at 613 nm (5D0 -> 7F2). The Judd-Ofelt parameters have been calculated from the photoluminescence emission spectra of CaMoO4:Eu3+ with 5% doping concentration, in temperature range from 293 K to 693 K. Judd-Ofelt intensity parameters uniformly decrease with increasing temperature. The Judd-Ofelt parameters radiative lifetimes and emission cross-sections were calculated. The results indicate that the Eu3+ doped CaMoO4 nanophosphors are expected to have applications in the field of solid state lighting and other optical instruments.
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页数：9
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