2026-10-11T19:35:58Z https://www.scidb.cn/oai

10.57760/sciencedb.02973 2022-09-29T17:44:40Z

2022-09-29 Unveiling low-temperature thermal oxidation growth of W18O49 nanowires with metastable β-W films doi:10.57760/sciencedb.02973 en investigated for both W films and powders. W18O49 nanowires could be steadily obtained with appropriate temperature and oxygen pressure ranges for both cases, while the growth temperature of a W film (metastable β phase dominant) could be much lower than that of W powder (α phase). The structural analysis indicates that metastable β-W is susceptible to oxidation in comparison with α-W and thus generates oxidation-induced chemical compression for nanowire growth. The growth temperature of W18O49 nanowires could be reduced to ca. 400 °C, which paves the way for the in situ patterning of W18O49 nanowires on indium-tin-oxide (ITO) glass substrates and flexible substrates. W18O49 nanowires; meta-stable β-W; crystallographic shear plane; pentagonal column; one-dimensional anisotropic growth Tiantian Dai Zanhong Deng Shimao Wang Xiaodong Fang Gang Meng PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1039/D2NR00609J Science Data Bank