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首页> 外文期刊>RSC Advances >Textures of Au, Pt and Pd/PdO nanoparticles thermally dewetted from thin metal layers on fused silica
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Textures of Au, Pt and Pd/PdO nanoparticles thermally dewetted from thin metal layers on fused silica

机译：Au，pt和pd / pdo纳米粒子的纹理从熔融二氧化硅上的薄金属层热脱滤

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This article presents results concerning the basic dewetting procedure of thin metal films on an amorphous substrate. Thin layers of gold, platinum and palladium are deposited on fused silica glass sheets by sputtering. The 14 to 18 nm thick layers of Au, Pt and Pd are dewetted into nanoparticles (NP) at temperatures from 424 to 1600 °C. The morphology of the resulting NP is characterized using scanning electron microscopy (SEM) while crystallographic analyses are performed using electron backscatter diffraction (EBSD). Multiple textures are described to occur and coexist in NP-layers of the respective materials and a temperature dependence of the texture formation in gold NP is proved. The transformation of Pd to PdO and its effects on the texture is also analyzed. It is shown that the cooling rate has an effect on the texture in the case of gold NP as well as on the physical structure of the Pd/PdO NP. Twinning relationships could be described to occur on all samples.
机译：本文提出了关于无定形基质上薄金属膜的基本脱模程序的结果。通过溅射沉积在熔融石英玻璃板上的薄层金，铂和钯。将14至18nm厚的Au，pt和Pd层在424至1600℃的温度下脱滤成纳米颗粒（NP）。使用扫描电子显微镜（SEM）表征所得NP的形态，而使用电子反向散射衍射（EBSD）进行晶体分析。描述了多种纹理，并在各种材料的NP层中进行共存，并证明了金NP中纹理形成的温度依赖性。还分析了PD对PDO的转化及其对纹理的影响。结果表明，冷却速率在金NP的情况下对纹理以及PD / PDO NP的物理结构具有效果。可以描述孪生关系在所有样本上发生。

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