Kar Soumitra, Chaudhuri Subhadra
Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
J Phys Chem B. 2005 Mar 3;109(8):3298-302. doi: 10.1021/jp045817j.
Rapid synthesis of wurtzite ZnS nanowires and nanoribbons has been achieved by a simple thermal evaporation of ZnS powder onto Si substrate in the presence of Au catalyst. A vapor-liquid-solid process is proposed for the formation of the ZnS nanostructures. The flow rate of the inert carrier Ar gas along with the temperature play an important role in defining the morphology of the ZnS nanostructures. The morphological change of the ZnS nanostructures and their growth sequence were studied through scanning electron microscopy. Room-temperature photoluminescence measurements showed intense blue emission at approximately 398 nm from both the nanowires and the nanoribbons.
通过在金催化剂存在下将硫化锌粉末简单热蒸发到硅衬底上，实现了纤锌矿型硫化锌纳米线和纳米带的快速合成。提出了一种气-液-固过程来形成硫化锌纳米结构。惰性载气氩气的流速以及温度在确定硫化锌纳米结构的形态方面起着重要作用。通过扫描电子显微镜研究了硫化锌纳米结构的形态变化及其生长顺序。室温光致发光测量表明，纳米线和纳米带在约398nm处均有强烈的蓝光发射。
