In this work, we present the synthesis of a green‐emitting series of BaGd2ZnO5:xHo3+ (0.5–3 mol%) phosphors using a high‐temperature solid‐state reaction method. Phase purity and crystal structure information were evaluated through X‐ray powder diffraction patterns. Optical properties were examined through diffuse reflectance spectra, revealing that the prepared phosphor exhibited a band gap of 4.65 eV. The effect of Ho3+ doping on the morphology and ion distribution on the surface was assessed using scanning electron microscopy and time‐of‐flight secondary ion mass spectrometry techniques, respectively. The excitation spectra of the synthesized phosphor exhibited a charge transfer band and strong absorption transitions. The emission spectra displayed typical holmium emission characteristics, featuring a strong green emission band associated with f–f transitions from 5F4 + 2S2 → 5I8. Decay dynamics of the synthesized phosphor exhibited a single‐exponential decay pattern, with lifetimes ranging from 0.103 to 0.053 ms. The intrinsic radiative lifetime, calculated through Auzel's fitting was determined to be 0.14 ms. Using the emission spectra, colorimetric behaviour was analyzed, revealing that the Commission Internationale de l'éclairage (CIE) coordinates exclusively lay within the green region at (0.285, 0.705), with an impressive colour purity of 99.6%. Given these marked properties, the synthesized phosphor exhibits great potential for a wide range of green‐emitting applications, including displays, white light‐emitting diodes, and security signage.

中文翻译：

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用于固态照明的 Ho3+ 掺杂 BaGd2ZnO5 绿光荧光粉：合成、表征和光致发光性能

在这项工作中，我们提出了一系列绿色发光 BaGd 的合成2氧化锌5:xHo3+使用高温固相反应方法制备（0.5–3 mol%）荧光粉。通过 X 射线粉末衍射图评估相纯度和晶体结构信息。通过漫反射光谱检查光学性质，表明所制备的荧光粉的带隙为4.65 eV。何的功效3+分别使用扫描电子显微镜和飞行时间二次离子质谱技术评估掺杂对表面形态和离子分布的影响。合成荧光粉的激发光谱表现出电荷转移带和强吸收跃迁。发射光谱显示出典型的钬发射特性，具有与 f-f 跃迁相关的强绿色发射带。5F4+2S2→5我8。合成荧光粉的衰变动力学表现出单指数衰变模式，寿命范围为 0.103 至 0.053 ms。通过 Auzel 拟合计算得出的固有辐射寿命为 0.14 ms。使用发射光谱对比色行为进行分析，结果表明国际照明委员会 (CIE) 坐标完全位于绿色区域 (0.285, 0.705)，色纯度高达 99.6%。鉴于这些显着的特性，合成的荧光粉在广泛的绿色发光应用中表现出巨大的潜力，包括显示器、白色发光二极管和安全标牌。