中文摘要：

用溶液法在镀有ZnO缓冲层的硅衬底上制备出定向ZnO纳米杆阵列,然后再通过硫代乙酰胺（TAA）辅助硫化法将氧化锌一维纳米结构转化为ZnO/ZnS的核-壳纳米结构.运用X射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和室温光致发光谱（PL）研究了样品的结构、形貌和光学性质.结果表明,ZnO/ZnS核-壳纳米杆的带边发光峰比ZnO纳米杆有显著增强,且峰位蓝移.

英文摘要：

The Vertically aligned ZnO nanorod arrays have been synthesized using aqueous solution growth method on ZnO buffer layers. Furthermore, by using an effective thioglycolic acid-assisted solution route, the well-aligned ZnO/ZnS core-shell nanorod arrays have been successfully synthesized. The structures, morphologies and optical properties of both ZnO and ZnO/ZnS core-shell nanorod arrays were investigated by X-ray diffraction （XRD）, field emission scanning electron microscopy （SEM）, transmission electron microscope （TEM） and photoluminescence spectrum （PL） at room temperature. The PL spectrum indicates that the synthesized ZnO/ZnS core-shell nanorod arrays have much stronger near-band emission as compared with the ZnO nanorod arrays, and the near-band emission peak slightly shifts to higher energy.