Citation: HONG Xin-Chao, SUN Jing, ZHOU Chen, TANG Juan, BI Guan. Fluorescence Characteristics of Cr³⁺ in Different Matrices Y₃Ga₅O₁₂ or Ga₂O₃[J]. Chinese Journal of Inorganic Chemistry, ;2019, 35(6): 1059-1064. doi: 10.11862/CJIC.2019.125 shu

Fluorescence Characteristics of Cr³⁺ in Different Matrices Y₃Ga₅O₁₂ or Ga₂O₃

School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun 130022, China

Corresponding author: SUN Jing, sj-cust@126.com ZHOU Chen, 59982153@qq.com
Received Date: 18 January 2019
Revised Date: 25 March 2019

Figures(9)

Two kinds of polycrystalline powders Ga_2-2xO₃:2xCr³⁺ (Ga₂O₃:xCr) and Y₃Ga_5-5xO₁₂:5xCr³⁺ (YGG:xCr) (x=0.01, 0.03, 0.05, 0.07) were synthesized by sol-gel high temperature solid phase synthesis with Ga₂O₃, Y₂O₃, Cr(NO₃)₃ ·9H₂O as raw materials and citric acid as complexing agent. The X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM) and fluorescence spectroscopy (PL) were used to test and analyze the structure, composition, morphology and fluorescence performance of the powders. XRD and IR showed that all the samples has crystal structure independently on the substituent element; SEM photographs showed that the morphology of the Ga₂O₃:xCr sample was cylindrical polyhedron, and the morphology of the YGG:xCr powder was in the shape of short rod, both of two phosphor powders had agglomeration. The emission peak of two powders observed at 742 and 740 nm is due to ²E-⁴A₂ transition from Cr³⁺ ions. The results showed that the fluorescence emission intensity of YGG:xCr was higher, and the emission peak wavelength region is suitable for photosynthesis in plants.
- Cr³⁺ doping,
- Ga₂O₃,
- Y₃Ga₅O₁₂,
- fluorescence,
- sol-gel high temperature solid phase synthesis
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Fluorescence Characteristics of Cr³⁺ in Different Matrices Y₃Ga₅O₁₂ or Ga₂O₃