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Nguyễn Mai Anh, Đàm Quang Học, Nguyễn Văn Quang*, Phạm Thị Lan Hương(2)(1)

Khảo sát tính chất quang của vật liệu β-Ga2O3 pha tạp ion Cr3+ chế tạo bằng phương pháp khuếch tán nhiệt

Luminescent properties of Cr3+-doped β-Ga2O3 materials synthesised by thermal diffusion method

Tạp chí Khoa học và Công nghệ Việt Nam - B

2024

11B

1

Nghiên cứu này báo cáo quy trình đơn giản chế tạo bột huỳnh quang β-Ga2O3 pha tạp Cr3+ (β-Ga2O3:Cr3+) với các nồng độ khác nhau (0,2-1,5%) bằng phương pháp khuếch tán nhiệt. Kết quả giản đồ nhiễu xạ tia X (XRD) cho thấy, vật liệu β-Ga2O3:Cr3+ có cấu trúc monoclinic. Thêm vào đó, ion Cr3+ được tìm thấy đã thay thế cho ion Ga3+ trong mạng nền β-Ga2O3.

This study reports a simple fabrication process for producing Cr3+ doped β-Ga2O3 (β-Ga2O3:Cr3+) phosphor powder with different concentrations (0.2-1.5%) by thermal diffusion method. The X-ray diffraction pattern (XRD) analysis revealed that the β-Ga2O3:Cr3+ phosphor has a monoclinic structure. Additionally, the Cr3+ ions were found to replace the Ga3+ ions in the β-Ga2O3 lattice.

  • [1] S.M. Hwang, J.B. Lee, S.H. Kim (2012), A review on inorganic phosphor materials for white LEDs,Journal of Korean Crystal Growth and Crystal Technology
  • [2] T.Y. Shen, Y. Wu, Y.F. Shen (2014), Photophysical properties and electronic structure of Sr₂Si₅N₈:Eu²⁺,Journal of Synthetic Crystals
  • [3] G. Liu, X. Duan, H. Li (2008), Preparation and photoluminescence properties of Eu-doped Ga₂O₃ nanorods,Materials Chemistry and Physics
  • [4] S.F. Hu, M.H. Fang, R.S. Liu (2020), Ultra-high-efficiency near-infrared Ga₂O₃:Cr³⁺ phosphor and controlling of phytochrome,Journal of Materials Chemistry C
  • [5] Y.Y. Lu, F. Liu, Z. Gu (2011), Long-lasting near-infrared persistent luminescence f-rom β-Ga₂O₃:Cr³⁺ nanowire assemblies,Journal of Luminescence
  • [6] E. Nogales, J.A. García, B. Méndez (2007), Red luminescence of Cr in β-Ga₂O₃ nanowires,Journal of Applied Physics
  • [7] A. Luchechko, V. Vasyltsiv, Y. Zhydachevskyy (2020), Luminescence spectroscopy of Cr³⁺ ions in bulk single crystalline β-Ga₂O₃,Journal of Physics D: Applied Physics
  • [8] S.I. Stepanov, V.I. Nikolaev, V.E. Bougrov (2016), Gallium oxide: Properties and applications – A review,Reviews on Advanced Materials Science
  • [9] J. Zhong, Y. Zhuo, F. Du (2022), Efficient broadband near-infrared emission in the GaTaO₄:Cr³⁺ phosphor,Advanced Optical Materials
  • [10] L. Li, K. Xu, Y. Wang (2016), Enhanced persistent luminescence and photocatalytic properties of Ga₂O₃:Cr³⁺ by In³⁺ doping,Optical Materials Express
  • [11] S. Zhou, G. Feng, B. Wu (2007), Intense infrared luminescence in transparent glass-ceramics containing β-Ga₂O₃:Ni²⁺ nanocrystals,Journal of Physical Chemistry C
  • [12] Q. Shao, H. Ding, L. Yao (2018), Photoluminescence properties of a ScBO₃:Cr³⁺ phosphor and its applications for broadband near-infrared LEDs,RSC Advances
  • [13] X.S. Wang, J.Q. Situ, X.Y. Ying (2015), β-Ga₂O₃:Cr³⁺ nanoparticle: A new platform with near infrared photoluminescence for drug targeting delivery and bio-imaging simultaneously,Acta Biomaterialia
  • [14] L.Q. Duong, N.T. Tuan, N.V. Quang (2020), Synthesis and photoluminescence properties of deep-red-emitting CaYAlO₄:Cr³⁺ phosphors,Journal of Electronic Materials
  • [15] M.T. Tran, D.Q. Trung, N. Tu (2021), Single-phase far-red-emitting ZnAl₂O₄:Cr³⁺ phosphor for application in plant growth LEDs,Journal of Alloys and Compounds
  • [16] N.V. Quang, N.T. Huyen, N. Tu (2021), A high quantum efficiency plant growth LED by using a deep-red-emitting α-Al₂O₃:Cr³⁺ phosphor,Dalton Transactions
  • [17] S. Adachi (2021), Review-photoluminescence properties of Cr³⁺-activated oxide phosphors,ECS Journal of Solid State Science and Technology