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综合利用化学气相沉积、铝热反应法、汽-液-固生长法、极性面融合和稳态湍流动力学控制来大量制备双股类螺旋Zn2SnO4单晶纳米带.该材料属于面心立方尖晶石型透明半导体,在光伏器件和湿度与可燃气体传感器中有着广泛的应用.扫描电镜、透射电镜、电子衍射、X射线衍射、拉曼光谱以及光发射等技术分析表明所得的双股类螺旋纳米带是由两个独立的Zn2SnO4纳米带通过扭曲纠缠和融合而成.该双股类螺旋纳米带实际上是在轴向具有周期性的超晶格材料.光致发光测量表明该纳米带在326.1nm处出现强发射峰,线宽约为1.5nm.本研究所采用的综合制备法中的铝热反应法和稳态湍流微扰法可能有助于类似材料的控制制备.
The double-stranded helical Zn2SnO4 single crystal nanobelts were synthesized by chemical vapor deposition, aluminothermic reaction, vapor-liquid-solid growth, polar surface fusion and steady-state turbulent kinetic control. Spinel transparent semiconductors are widely used in photovoltaic devices and humidity and combustible gas sensors.Techniques analysis such as SEM, TEM, electron diffraction, X-ray diffraction, Raman spectroscopy and light emission show that the obtained double-stranded helix The nanoribbons are composed of two independent Zn2SnO4 nanoribbons, which are twisted and entangled. The double helix band is actually a periodic superlattice material in the axial direction. Photoluminescence measurements show that the nanoribbons Strong emission peak appears at 326.1nm, with a linewidth of about 1.5nm.Aluminum thermal reaction method and steady-state turbulence perturbation method in the comprehensive preparation method used in this study may contribute to the control preparation of similar materials.