Abstract Herein, we are reporting, for the first time, a microwave-assisted synthesis of lead iodide (PbI2) nanosheets (NSs) with codoping of Zn and Mn, confirmed by SEM/EDX. In the co-doping Mn concentration was kept at a constant level (i.e. 15 %) while Zn concentration was varied from 1 wt.% to 10 wt.%. The morphological analysis confirming presence of the dopant was done through SEM/EDX. The single phase and polytypic nature of NSs were established by XRD and FT-Raman examinations. Homogeneous doping of Mn and Zn in prepared PbI2 NSs was confirmed by SEM mapping analysis. The dielectric and electrical properties were measured by preparing a compact pellet of NSs at 49820 Pa pressure. The dielectric constant and electrical conductivity were enhanced by Zn:Mn co-doping in PbI2. The radiation activity was tested by cesium-137 (137Cs) radioactive source and its increase resulting from the doping was observed. The enhanced properties suggest that the prepared NSs may be useful in electro-optic and radiation detection device applications.

中文翻译：

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Zn:Mn:PbI2 微米级纳米片的微波合成及其表征

摘要在此，我们首次报道了微波辅助合成的碘化铅 (PbI2) 纳米片 (NSs)，并通过 SEM/EDX 证实了 Zn 和 Mn 的共掺杂。在共掺杂中，Mn 浓度保持在恒定水平（即 15%），而 Zn 浓度从 1 wt.% 到 10 wt.% 变化。确认掺杂剂存在的形态分析是通过 SEM/EDX 进行的。NSs 的单相和多型性质是通过 XRD 和 FT-Raman 检测确定的。SEM 映射分析证实了制备的 PbI2 NS 中 Mn 和 Zn 的均匀掺杂。通过在 49820 Pa 压力下制备紧凑的 NSs 颗粒来测量介电和电性能。Zn:Mn 在 PbI2 中的共掺杂提高了介电常数和电导率。辐射活性用铯137（137Cs）放射源测试，观察到掺杂引起的辐射活性增加。增强的特性表明制备的 NSs 可用于电光和辐射检测设备应用。