کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1547842 | 997646 | 2006 | 4 صفحه PDF | دانلود رایگان |
Metallic Zinc (Zn) nanowires in large quantity are synthesized by thermal evaporation and vapor transport methods at low substrate temperature (100–200 °C) in the furnace tube placed in a conventional furnace in flowing Ar gas. A mixture of ZnO and graphite powder (ratio 2:1 by weight) is heated at nearly 1000 °C in the tube. Zn nanowires and other Zn nanostructures are formed at the end of the furnace tube at low temperatures. Upon annealing the as-made Zn nanowires at 500 °C for 1 h, oxidation occurred to form ZnO nanowires. Transmission electron microscopy images confirm that the annealed material is good-quality crystalline ZnO nanowires. Cathodoluminescence and photoluminescence spectra also show the band edge ultra violet peak emission at 381 nm and a broad band centered at 495 nm, which are the characteristics of ZnO material.
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 33, Issue 1, June 2006, Pages 88–91