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以Au作催化剂,通过金属铟与氧气在850～1000℃的氧化反应,在单质铟表面原位大面积生长出了In2O3纳米锥.通过反应温度的改变实现了纳米锥的可控合成.采用激光拉曼光谱、X射线衍射、扫描电镜和透射电镜对产物进行了表征分析.结果表明,纳米锥为立方相单晶结构的In2O3,其直径和高度分别在0.1～0.6μm和0.2～2.9μm范围内可调控.提出了In2O3纳米锥可能的生长机理.在室温下研究了它们的发光性质,发现了发光峰位于416和439nm强的蓝光发光,这一蓝光发光起源于氧化铟纳米锥中氧空位中的电子与铟-氧空位中心中的空穴之间的复合.
With Au as a catalyst, In2O3 nano-cones were grown on the surface of indium single-element in large area by the oxidation reaction of metal indium and oxygen at 850-1000 ° C. The controllable synthesis of nano-cones was achieved by changing the reaction temperature. Raman spectroscopy, X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that the diameter and height of the nanocones are in the range of 0.1-0.6μm and 0.2-2.9μm The possible growth mechanism of In 2 O 3 nano-cones was put forward.The luminescent properties of In 2 O 3 nano-cones were studied at room temperature.It was found that the blue luminescence with strong luminescence peak at 416 and 439 nm was originated from the oxygen vacancies In the electron and indium - oxygen vacancies in the center of the hole between the composite.