Black-ZrO2 thin film produced by oxidation of Zr metal plate in air
Black-ZrO2 thin film produced by oxidation of Zr metal plate in air
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Zr金属板在空气中氧化生成黑色ZrO2薄膜
DOI：
10.1016/j.matlet.2018.07.109
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发表时间：
2018
影响因子：
3
通讯作者：
M. Matsuda
中科院分区：
文献类型：
--
作者：
M. Matsuda;Yuuta Himeno;K. Shida;M. Matsuda
在常压、空气中，采用简单氧化法在金属锆片表面制备了黑色ZrO 2薄膜。黑色ZrO 2薄膜由两种单斜ZrO 2结构的晶粒组成：1）细小的等轴晶，从表面到深度约为5 μm，尺寸可达几百nm; 2）柱状晶，在等轴晶上方的内部区域，长径和短径分别为几微米和几百nm。的黑色-ZrO 2薄膜的带隙估计为0.72 eV，基于Tauc图使用漫反射，这允许在紫外线和可见光区域的太阳光谱的吸收。
Black-ZrO2thin films were successfully fabricated on the surface of a Zr metal plate by simple oxidation at a controlled temperature in air, under normal atmospheric pressure. The black-ZrO2thin films were composed of two types of grains with monoclinic ZrO2structures: 1) fine equiaxed grains with sizes of up to a few hundred nanometers from the surface to a depth of about 5 μm; 2) columnar grains, with long and short diameters of several microns and a few hundred nanometers, respectively, in the inner region above the equiaxed grains. The bandgap of the black-ZrO2thin films was estimated to be 0.72 eV, based on the Tauc plot using diffuse reflections, which allowed for absorption in the ultraviolet and visible regions of the solar spectrum.