| Title | Amazing ageing property and in situ comparative study of field emission from tungsten oxide nanowires |
| Authors | Yue, Shuanglin Pan, Huayong Ning, Zhiyuan Yin, Jianbo Wang, Zhenxing Zhang, Gengmin |
| Affiliation | Peking Univ, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China. Peking Univ, Dept Elect, Beijing 100871, Peoples R China. |
| Keywords | WALLED CARBON NANOTUBES |
| Issue Date | 2011 |
| Publisher | nanotechnology |
| Citation | NANOTECHNOLOGY.2011,22,(11). |
| Abstract | In this work, needle-shaping of tungsten oxide nanowires occurred during field emission characterization. Compared with nanowires with a flat apex, needle-shaped emitters showed a lower threshold field of 11.9 V mu m(-1) for 1 mA cm(-2) and a higher emission current of 1120 mu A at 16.2 V mu m(-1). Most notably, the measured ageing current dramatically increased by more than four times until it slightly decreased, tending towards stability. In addition, the samples showed striking difference in their nonlinear Fowler-Nordheim plot before and after ageing tests. Selected area diffraction and transmission electron microscope characterizations were used to further study these amazing results. |
| URI | http://hdl.handle.net/20.500.11897/195176 |
| ISSN | 0957-4484 |
| DOI | 10.1088/0957-4484/22/11/115703 |
| Indexed | SCI(E) EI PubMed |
| Appears in Collections: | 纳米器件物理与化学教育部重点实验室 信息科学技术学院 |
