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Synthesis of alpha-tellurium dioxide nanorods from elemental tellurium by laser ablation

机译:激光烧蚀法从元素碲合成α-二氧化碲纳米棒

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摘要

Elemental tellurium was evalporated by laser ablation,the vapor of which was condensed and deposited on the surface of the heated glass surface and then formed alpha-tellurium dioxide nanorods with uniformly size distribution by oxidation in the chamber with hot air atmosphere.TEM images and Electron diffraction (ED) pattern confirm the crystallinity of alpha-phase tellurium dioxide.The formation process of the nanorods involves a vapor-liquid-solid (VLS) following a chemical oxidation in the hot air atmosphere,in which the low melting point tellurium serves as a liquid-forming reagent.
机译:通过激光烧蚀散发元素碲,将其蒸气冷凝并沉积在加热的玻璃表面上,然后通过在热空气气氛中进行氧化而形成尺寸均匀分布的α-二氧化碲纳米棒。TEM图像和电子衍射图谱(ED)证实了α相二氧化碲的结晶性。纳米棒的形成过程涉及在热空气中进行化学氧化后的气液固(VLS),其中低熔点碲为液体形成试剂。

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