Abstract In this study, europium (Eu) and dysprosium-(Dy) doped phosphors, i.e., ZnO:Eu, ZnO:Dy, and Eu:Dy co-doped zinc oxide (ZnO:Eu, Dy) semiconductor phosphors, with optimized concentrations, were synthesized using the conventional solid-state reaction method in an oxygen environment. Detailed structural, morphological, and compositional investigations were conducted using X-ray diffraction (XRD), scanning electron microscopy, and energy-dispersive X-ray measurements, respectively. Photoluminescence (PL) emission spectra were recorded under different excitation wavelengths to assess the optical characteristics. Electrical analysis was conducted using an inductance (L), capacitance (C), and resistance (R) (LCR) meter and a Keithley source meter, and magnetic analysis was performed using a vibrating sample magnetometer (VSM). XRD confirmed the presence of Eu and Dy ions because the diffraction peaks matched perfectly with those for Eu2O3 and Dy2O3, respectively. The PL results indicated the broad emissions from the samples in the visible region (400–700 nm) under different ultraviolet excitation wavelengths. The VSM results demonstrated that both the Dy-doped and Eu:Dy co-doped ZnO samples exhibited paramagnetic behavior at room temperature, but not the undoped and Eu-doped ZnO samples. The ZnO:Dy sample had superior parameters in terms of the electrical measurements such as the AC/DC conductivity, capacitance, current density, and dielectric constant compared with the ZnO:Eu and ZnO:Eu, Dy samples. These detailed investigations of the optical, magnetic, and electrical properties demonstrate that ZnO:Dy and ZnO:Eu, Dy may be promising materials for use in optical devices.

中文翻译：

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用于多功能设备的高效发光磁性和导电 Eu 和 Dy 掺杂的 ZnO 荧光粉

摘要 在本研究中，铕 (Eu) 和镝 (Dy) 掺杂磷光体，即 ZnO:Eu、ZnO:Dy 和 Eu:Dy 共掺杂氧化锌 (ZnO:Eu, Dy) 半导体磷光体，具有优化的浓度, 是在氧气环境中使用传统的固态反应方法合成的。分别使用 X 射线衍射 (XRD)、扫描电子显微镜和能量色散 X 射线测量进行了详细的结构、形态和成分研究。在不同激发波长下记录光致发光 (PL) 发射光谱以评估光学特性。使用电感 (L)、电容 (C) 和电阻 (R) (LCR) 计和 Keithley 源计进行电分析，使用振动样品磁强计 (VSM) 进行磁分析。XRD 证实了 Eu 和 Dy 离子的存在，因为衍射峰分别与 Eu2O3 和 Dy2O3 的衍射峰完美匹配。PL 结果表明样品在不同紫外激发波长下在可见光区 (400-700 nm) 的宽发射。VSM 结果表明，Dy 掺杂和 Eu:Dy 共掺杂 ZnO 样品在室温下均表现出顺磁行为，但未掺杂和 Eu 掺杂 ZnO 样品没有表现出顺磁行为。与 ZnO:Eu 和 ZnO:Eu, Dy 样品相比，ZnO:Dy 样品在电气测量方面具有优异的参数，例如 AC/DC 电导率、电容、电流密度和介电常数。这些光学、磁性和电学特性的详细研究表明，ZnO:Dy 和 ZnO:Eu，