Citation: Ruixin XU, Hongtuo LI, Chen SHI, Yanhong YAN. Factors influencing the spectral properties of composite luminescent materials SrTiO₃: Eu³⁺/SrAl₂O₄: Eu²⁺, Dy³⁺[J]. Chinese Journal of Inorganic Chemistry, ;2025, 41(11): 2307-2316. doi: 10.11862/CJIC.20250055 shu

Factors influencing the spectral properties of composite luminescent materials SrTiO₃: Eu³⁺/SrAl₂O₄: Eu²⁺, Dy³⁺

Ruixin XU ¹ ,
Hongtuo LI ¹ ,
Chen SHI ^2,, ,
Yanhong YAN ^{1, 3, 4,,}

1.
School of Fashion, Zhejiang Sci-Tech University, Hangzhou 310018, China
2.
College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
3.
Zhejiang Garment Engineering Technology Research Center, Hangzhou 310018, China
4.
Shengzhou Innovation Research Institute, Zhejiang Sci-Tech University, Shengzhou, Zhejiang 312400, China

Corresponding author: Chen SHI, chenshi2021@zstu.edu.cn Yanhong YAN, reda1982@163.com
Received Date: 19 February 2025
Revised Date: 23 September 2025

Figures(12)

TiO₂ was incorporated into the preparation process of the rare-earth long-afterglow luminescent material SrAl₂O₄: Eu²⁺, Dy³⁺, yielding the SrTiO₃: Eu³⁺/SrAl₂O₄: Eu²⁺, Dy³⁺ composite luminescent material co-doped with Eu³⁺ and Eu²⁺. The effects of raw material ratios on the material's micromorphology, phase composition, and luminescent properties were investigated. The results indicated that the composite material exhibited an irregular morphology, a porous structure, and agglomeration. With the increase of TiO₂ addition amount, the luminescent brightness and afterglow duration of the material were significantly improved. When the TiO₂ addition amount was 1 mol, the material showed the optimal red emission at 618 nm, with a brightness of 0.217 cd·m^-2 and an afterglow duration of 1 000 s. Doping with Eu₂O₃ made the luminescent properties first enhance and then tend to stabilize: the emission intensity reached the maximum when the amount of Eu₂O₃ was 0.015 0 mol, while the afterglow performance was optimal when the amount of Eu₂O₃ was 0.012 5 mol. The introduction of carbon powder obviously enhanced the emission intensity at 618 nm, with the optimal condition at the amount of 0.001 25 mol, and the afterglow brightness reached 0.011 cd·m^-2.
- glow-in-the-dark fibers,
- red photoluminescent material,
- high-temperature solid-phase method,
- luminescent properties
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沈阳化工大学材料科学与工程学院沈阳 110142

Factors influencing the spectral properties of composite luminescent materials SrTiO3: Eu3+/SrAl2O4: Eu2+, Dy3+

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通讯作者: 陈斌, bchen63@163.com

Factors influencing the spectral properties of composite luminescent materials SrTiO₃: Eu³⁺/SrAl₂O₄: Eu²⁺, Dy³⁺