Luminescence Properties of Novel Red Phosphor NaSrPO₄:Eu³⁺

Abstract:

A novel red-emitting NaSrPO₄:Eu³⁺ phosphor was prepared by a conventional solid-state reaction. The luminescence properties and temperature dependence of ₄:Eu³⁺ were investigated. The phosphor exhibited red luminescence under the near-UV excitation of 395 nm, corresponding to the ⁵F₀→⁷L₆ transition of Eu³⁺ ions, which matched well with the excitation wavelength of near-UV LED chips. The electronic transition due to ⁵D₀→⁷F₂ transition of Eu³⁺ ions is stronger than the magnetic dipole transition due to ⁵D₀→⁷F₁ of Eu³⁺ ions. Furthermore, Eu³⁺-doped NaSrPO₄ phosphor shows higher thermally stable luminescence comparable tocommercially available Y₃Al₅O₁₂:Ce³⁺ phosphor. All the investigated suggested that this newly developed phosphor could find applications in white light devise utilizing InGaN-based excitation in the near-UV chips.

• Periodical: Advanced Materials Research (Volume 502)
• Pages: 128-131
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.502.128
• Online since: April 2012
• Authors: Jia Yue Sun, Xiang Yan Zhang, Ji Cheng Zhu, Yi Ning Sun, Hai Yan Du
• Keywords: Luminescence, Red Phosphor, White LEDs

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