Synthesis and thermal stability of W-doped VO2 nanocrystals |
| |
Authors: | FY Kong M Li SS Pan YX Zhang GH Li |
| |
Affiliation: | Key Laboratory of Materials Physic, Anhui Key Laboratory of Nanomaterial and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, PR China |
| |
Abstract: | Pure and W-doped vanadium dioxide nanocrystals have been synthesized by using V2O5 and oxalic acid as precursors via a thermolysis method. The VO2 nanocrystals have a nearly spherical morphology with size ranging from 50 to 100 nm. The metal-insulator transition (MIT) temperature of the nanocrystals decreases with increasing W-doping content. The successive heat-induced fatigue character of the MIT in W-doped VO2 nanocrystals was investigated by DSC analysis together with structural study, and a high stability upon heating–cooling cycles was found with respect to MIT temperature, peak temperature and latent heat of the phase transition. |
| |
Keywords: | A Oxides B Chemical synthesis D Crystal structure |
本文献已被 ScienceDirect 等数据库收录! |