以水合醋酸锌和水合肼为反应物,在不使用任何表面活性剂的条件下,采用一种简单温和的液相法制备了氧化锌纳米棒束.利用X射线衍射仪(XRD)、扫描电子显微镜(SEM)和高分辨透射电子显微镜(HRTEM)对所得产物的结构和形貌进行了表征,利用荧光光谱仪对产物的室温发光性质进行了测试.测试结果证明所得产物为定向排列的纳米棒自组装而成的尺寸均匀、结晶良好的氧化锌纳米棒束,单根纳米棒的直径20～30 nm,其相结构为六方纤锌矿氧化锌.所得产物在紫外区381 nm处具有一个尖锐的发光峰,在400～600 nm的可见光区域的发光被显著减弱,显示了优良的发光性质.
ZnO nanorod bundles were synthesized by employing zinc acetate dihydrate and hydrazine hydrate as reactants via a simple mild solution method without using any surfactant. The phase structure and morphology of the as-grown product was characterized by X-ray diffractor (XRD), scanning electron microscope (SEM) and high-resolution transmission electron microscope (HRTEM). The optical property of the product was measured by photoluminescence spectrometer at room temperature. The results demonstrated that well-crystalline ZnO nanorod bundles with the good size distribution were self-assembled by oriented wurtzite nanorods in the diameter of 20～30 nm. Room-temperature photoluminescence of the ZnO nanorod bundles have a strong emission peak at 381 nm and a quiet weak emission around 400～600 nm, showing superior optical property.
参考文献
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