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Polymer-salt synthesis and characterization of MgO-ZnO ceramic coatings with the high transparency in UV spectral range

机译:在紫外光谱范围内具有高透明性的MgO-ZnO陶瓷涂层的聚合物盐合成与表征

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摘要

In this article an experimental study of MgO-ZnO ceramic coatings prepared by a simple liquid polymer-salt method using high molecular polyvinylpyrrolidone is presented. It is demonstrated that this method permits to obtain the transparent and uniform coatings on the glass or silicon substrates surface. These transparent MgO-ZnO ceramic coatings show the ability to generate chemically active singlet oxygenunder UV irradiation. Structure and spectral properties of the coatings were studied by SEM, DSC, XRD methods, and optical and luminescence spectroscopy. These coatings consist of small (5-20 nm) oxide nanoparticles forming aggregates. The MgO addition to the coating composition increases its transparency in UV spectral range. The coating material bandgap value is higher than that of bulk material (up to 4,15 eV).
机译:在本文中,对通过使用高分子聚乙烯吡咯烷酮的简单液体聚合物盐法制备的MgO-ZnO陶瓷涂层进行了实验研究。证明了该方法允许在玻璃或硅衬底表面上获得透明且均匀的涂层。这些透明的MgO-ZnO陶瓷涂层在紫外线照射下具有产生化学活性单线态氧的能力。通过SEM,DSC,XRD方法以及光学和发光光谱学研究了涂层的结构和光谱性质。这些涂层由形成聚集体的小(5-20​​ nm)氧化物纳米颗粒组成。将MgO添加到涂料组合物中可增加其在紫外光谱范围内的透明度。涂层材料的带隙值高于散装材料的带隙值(高达4,15 eV)。

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