Preparation and Luminescence Performance of Sr3ZnNb2O9∶0.3Eu3+, xNa+ Phosphors

Abstract

Abstract: In this paper, Sr₃ZnNb₂O₉∶0.3Eu³⁺, xNa⁺ (x=0,0.1,0.2,0.3,0.4,0.5) phosphors were successfully prepared by high temperature solid-state reaction. XRD patterns and refinement results show that Eu³⁺ and Na⁺ are successfully doped into the matrix and partially substituted Zn²⁺. The microscopic morphology and element distribution of the samples were confirmed by scanning electron microscopy. The spectral characteristics and thermal stability analysis show that the optimal doping concentration of Na⁺ is x=0.2. The introduction of Na⁺ improves the thermal stability of Sr₃ZnNb₂O₉∶0.3Eu³⁺ phosphors and the calculated activation energy is 0.163 eV. The CIE color coordinate of the Sr₃ZnNb₂O₉∶0.3Eu³⁺, 0.2Na⁺ samples is calculated to be (0.618, 0.376), the correlated color temperature and the color purity are 1 855 K and 98.46%, respectively.

Key words: Sr₃ZnNb₂O₉∶0.3Eu³⁺, xNa⁺, high temperature solid-state reaction, photoluminescence, thermal stability

CLC Number:

CUI Ruirui, ZHAO Rongli, YUAN Gaofeng, LING Yi, DENG Chaoyong, GONG Xinyong. Preparation and Luminescence Performance of Sr₃ZnNb₂O₉∶0.3Eu³⁺, xNa⁺ Phosphors[J]. Journal of Synthetic Crystals, 2023, 52(1): 132-138.

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Preparation and Luminescence Performance of Sr₃ZnNb₂O₉∶0.3Eu³⁺, xNa⁺ Phosphors

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