| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1795720 | Journal of Crystal Growth | 2008 | 5 Pages |
Abstract
W18O49 nanowires are simply synthesized by the reaction between water vapor and tungsten powders in tube furnace at a low temperature of 600 °C. The nanowires have diameters of 20–50 nm, lengths several micrometers. XRD, TEM and SAED results show that the nanowires are of single crystalline monoclinic W18O49 structures with the growth direction [0 1 0]. The growth mechanism is analyzed. We investigate the temperature dependence electrical transport properties of individual W18O49 nanowires. The conductivity is 2.58 Ω−1 cm−1 at 290 K and 42.35 Ω−1 cm−1 at 500 K, respectively. And the electron activation energy is calculated to be about 0.26 eV.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Songlin Shi, Xinyu Xue, Ping Feng, Yonggang Liu, Heng Zhao, Taihong Wang,