Impact of Doping of Bi³⁺ on Luminescent Properties of Red Phosphors Sr_3-xGaO₄F:xEu³⁺

Abstract:

It has been studied that the impact of doping of Bi³⁺ on the luminescent properties of red phosphors Sr_3-xGaO₄F:xEu³⁺ prepared with high temperature solid-state reaction method followed by doping into certain amounts of Bi₂O₃. The resulting samples are characterized by XRD, Emission Spectrum and Excitation Spectrum. As a result, it is shown that the strongest emission peak caused by the forced electronic dipole transition of ⁵D₀-⁷F₂ is at 618 nm with solely doping of Eu³⁺. In addition, the luminescent intensity of the as-formed phosphor increases and the most intensive emission peak red-shifts with doping amount of Bi³⁺ while co-doping Eu³⁺ and Bi³⁺. Meanwhile, the relationship of energy transition of Eu³⁺ and Bi³⁺ is also discussed herein.

• Periodical: Advanced Materials Research (Volumes 1120-1121)
• Pages: 401-405
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.401
• Online since: July 2015
• Authors: Rong Ying Liu, Yuan Zhang Feng, Zi Fei Peng*
• Keywords: Doping, High Temperature Solid-State Reaction Method, Red Phosphors, Sr_3-xGaO₄F: Xeu³⁺, Ybi³⁺

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