Abstract We report a detailed structural analysis and properties of the photoluminescence (PL) and thermoluminescence (TL) spectra of Eu3+ and Dy3+ incorporated into novel La2MoO6 and La2Mo2O9 phosphors synthesized successfully through gel combustion synthesis. The formation of a tetragonal phase and a cubic structure were verified for La2MoO6 and La2Mo2O9 phosphors via X-ray diffraction (XRD) studies. Dy doped samples exhibited blue and green emissions at 480 nm (4F9/2 →6H15/2) and 572 nm (4F9/2 → 6H13/2), and also Eu doped samples showed a sharp emission peaks at 612 and 619 nm (5D0 →7F2) upon 349 nm pulse laser excitation. Peak shape (PS) technique was utilised to determine activation energy, frequency factor and order of kinetics associated with the main glow curves in undoped and Eu and Dy doped samples after X-ray irradiation. The present findings suggest that Eu and Dy incorporated La2MoO6 and La2Mo2O9 phosphors are highly auspicious candidates for applications in solid-state lighting.

中文翻译：

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Eu3+ 和 Dy3+ 掺杂的 La2MoO6 和 La2Mo2O9 荧光粉：合成和发光特性

摘要 我们报告了通过凝胶燃烧合成成功合成的新型 La2MoO6 和 La2Mo2O9 荧光粉中 Eu3+ 和 Dy3+ 的光致发光 (PL) 和热致发光 (TL) 光谱的详细结构分析和性质。通过 X 射线衍射 (XRD) 研究验证了 La2MoO6 和 La2Mo2O9 磷光体的四方相和立方结构的形成。Dy 掺杂的样品在 480 nm (4F9/2 →6H15/2) 和 572 nm (4F9/2 → 6H13/2) 处表现出蓝色和绿色发射，而且 Eu 掺杂的样品在 612 和 619 nm (5D0 →7F2) 在 349 nm 脉冲激光激发下。峰形 (PS) 技术用于确定 X 射线照射后未掺杂和 Eu 和 Dy 掺杂样品中与主要辉光曲线相关的活化能、频率因子和动力学顺序。