低温一步液相法合成ZnO纳米棒

近年来．一维纳米结构如纳米线、纳米棒、纳米带等．由于其新颖的物理化学性质及其在光学或电学器件上的广泛应用前景．已成为研究开发的热点。特别是氧化锌（ZnO）这种宽禁带（3．37eV）、高激子束缚能（60meV）的功能性半导体材料。基于它在光电子器件、太阳能电池、传感器、二极管、场发射显示器等领域潜在的重要应用价值，各国科学工作者都给予极大的研究热情．开发出了许多合成方案制备一维纳米ZnO结构，如水热法，模板法同，微乳液法阐，CVD法，热蒸发法，MOVPE法，电化学沉积法等。

One-step Synthesis of ZnO Nanorods by Low-temperature Solution Method

By using ZnSO₄7H₂O and NaOH as raw materials, C₁₈H₂₉NaO₃S (DBS) as assistant, ZnO nanorods were synthesized directly in aqueous solution at low-temperature. TG-DSC, XRD, TEM and HRTEM results show that the crystal phase of the as-prepared ZnO nanorods has a hexagonal wurtzite structure with diameter from 30 to 50 nm and length up to 500 nm. The crystals grow along [001] direction. The mechanism for the ZnO nanorods growth was also discussed.