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Optical and structural properties of NiMgO thin films formed by sol-gel spin coating

机译：溶胶-凝胶旋涂形成的NiMgO薄膜的光学和结构性质

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摘要

Ni_(1-x)Mg_xO thin films across the full compositional range were formed by a low-cost sol-gel spin coating method. Optical transmission of the resultant films in the ultraviolet-visible spectral region increased to as high as 90% upon sintering, and X-ray diffraction verified an increase in crystallinity for sintering temperatures up to 1000 ℃, with root mean square roughness below 1 nm when sintered between 600 and 800 ℃. The lattice parameter of the rock salt Ni_(1-x)Mg_xO films showed a linear shift with increased magnesium concentration, consistent with a Vegard's Law relationship between the two binaries. Optical energy gaps from 3.6 to >6.5 eV were realized by adjusting the composition of the Ni_(1-x)Mg_xO films, demonstrating the suitability of the ternary for optical devices in the UV-C spectral region.
机译：通过低成本的溶胶-凝胶旋涂法形成整个组成范围的Ni_（1-x）Mg_xO薄膜。烧结后所得膜在紫外-可见光谱区域的透光率增加至高达90％，X射线衍射证明，烧结温度高达1000℃时，结晶度增加，当均方根粗糙度低于1 nm时在600至800℃之间烧结。盐岩Ni_（1-x）Mg_xO薄膜的晶格参数显示出随镁浓度增加而线性变化，这与两个二元化合物之间的Vegard定律关系一致。通过调节Ni_（1-x）Mg_xO膜的成分，实现了3.6到> 6.5 eV的光能隙，证明了三元态在UV-C光谱区域中对光学器件的适用性。

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  • 来源
    《Thin Solid Films》 |2012年第13期|p.4302-4304|共3页
  • 作者

    R.C. Boutwell; M. Wei; A. Scheurer; J.W. Mares; W.V. Schoenfeld;

  • 作者单位

    CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd. Orlando, FL 32816, United States;

    CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd. Orlando, FL 32816, United States;

    CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd. Orlando, FL 32816, United States;

    CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd. Orlando, FL 32816, United States;

    CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd. Orlando, FL 32816, United States;

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  • 正文语种 eng
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  • 关键词

    NiMgO; sol-gel; thin films; spin coating; ultraviolet solar blind; x-ray diffraction; optical properties;

    机译：NiMgO;溶胶凝胶薄膜;旋涂紫外线遮阳帘X射线衍射;光学性质;

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