Multifunctional near-infrared Zn2TiO4:Cr3+ phosphors for luminescence, thermometry, and plant cultivation

被引:12
作者
Cheng, Kang [1 ]
Huang, Weichao [1 ]
Xu, Yamin [1 ]
Liu, Xinyue [1 ]
Long, Juling [1 ]
Gong, Xinyong [1 ]
Deng, Chaoyong [1 ,2 ]
机构
[1] Guizhou Univ, Coll Big Data & Informat Engn, Key Lab Funct Composite Mat Guizhou Prov, Guiyang 550025, Guizhou, Peoples R China
[2] Guiyang Univ, Sch Elect & Informat Engn, Guiyang, Peoples R China
基金
中国国家自然科学基金;
关键词
Near-infrared; Cr3+ions; optical thermometry; plant cultivation; RED-EMITTING PHOSPHOR; THERMAL-STABILITY; NIR EMISSION; CONVERSION;
D O I
10.1016/j.molstruc.2023.136682
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel near-infrared phosphors Zn2TiO4:Cr3+ were synthesized through solid-state reaction, and the phosphors exhibit near-infrared emission at 600-850 nm under the excitation of 467 nm. An emission peak appears at 716 nm, which is attributed to 2E -> 4A2 spin-forbidden transition of Cr3+. Phase purity, photoluminescence properties and crystal filed environment of Zn2TiO4:Cr3+ were systematically investigated. Both the concentration and thermal quenching mechanisms were analyzed in detail. Moreover, the emission band of the phosphor match with characteristic absorption of PFR. At 398 K, the relative sensitivity Sr and absolute sensitivity Sa were estimated. The findings of this study demonstrated that the phosphors Zn2TiO4:Cr3+ are promising for both optical thermometry and plant cultivation.
引用
收藏
页数:9
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