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Fluorescence Characteristics of Cr3+ in Different Matrices Y3Ga5O12 or Ga2O3
Author NameAffiliationE-mail
HONG Xin-Chao 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  
SUN Jing 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 sj-cust@126.com 
ZHOU Chen 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 59982153@qq.com 
TANG Juan 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  
BI Guan 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  
Abstract: Two kinds of polycrystalline powders Ga2-2xO3:2xCr3+ (Ga2O3:xCr) and Y3Ga5-5xO12:5xCr3+ (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.
Keywords: Cr3+ doping  Ga2O3  Y3Ga5O12  fluorescence  sol-gel high temperature solid phase synthesis
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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.
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Chinese Journal of Inorganic Chemistry