کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1547153 | 997629 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Low-temperature synthesis of one-dimensional ZnO nanostructures on screen-printed carbon nanotube films Low-temperature synthesis of one-dimensional ZnO nanostructures on screen-printed carbon nanotube films](/preview/png/1547153.png)
One-dimensional (1D) ZnO nanostructures including nanowires, nanobelts, and nanorods were synthesized on screen-printed multi-walled carbon nanotube (MW-CNT) films in a thermal chemical vapor deposition process by gold (Au) nanoparticle-catalyst and self-catalyst driving at low temperatures of 400 and 500 °C. ZnO nanowires and nanobelts by introducing Au nanoparticles were grown via the vapor–liquid–solid (VLS) mechanism, while ZnO nanorods were realized via a self-catalytic VLS process. It was found that the diameter of ZnO nanowires strongly depends on that of Au nanoparticles, indicating the typical metal catalyst-driving VLS process. On the other hand, ZnO nanorods without Au-alloyed tips are comprised of hexagonal facets, suggesting self-catalytic VLS formation of the ZnO nanorods on the MW-CNT films. Room temperature photoluminescence spectra of the 1D ZnO nanostructures exhibit an ultraviolet emission band around 378 nm and deep-level emission band centered around 505 nm.
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 40, Issue 7, May 2008, Pages 2526–2530