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首次使用五氧化二铌纳米棒作为原料通过水热反应合成出60~150 nm宽、几个微米长的高产率、斜方晶系铌酸钾纳米棒晶体。使用X射线衍射仪(XRD)、扫描电镜(SEM)、透射电镜(TEM)、高分辨透射电镜(HRTEM)、选区电子衍射技术(SAED)对铌酸钾纳米棒晶体的形貌和结构进行了表征。合成的铌酸钾纳米棒表现出二次谐波产生响应,并发射出高效率的纳米二次谐波光线。铌酸钾纳米棒晶体沿着[001]方向生长。合成的铌酸钾纳米棒以其优异的非线性光学性能在纳米光学器件中的应用具有很好的发展前景。
For the first time, niobium pentoxide nanorods were used as raw materials to synthesize orthorhombic potassium niobate nanorods crystals of 60-150 nm in width and several microns in length by hydrothermal reaction. The morphology and structure of potassium niobate nanorods crystals were characterized by XRD, SEM, TEM, HRTEM and SAED Characterization. The synthesized potassium niobate nanorods show the second harmonic generation response and emit high efficiency nanometer second harmonic light. Potassium niobate nanorods grow in the [001] direction. The synthesis of potassium niobate nanorods for its excellent nonlinear optical properties in the application of nano-optical devices have good prospects for development.