Preparation of Zn1-xCoxO Diluted Magnetic Semiconductor by Hydrothermal Method
Zn1-xCoxO diluted magnetic semiconductor was prepared by hydrothermal method at 200 °C and 240 °C for 24h with the Co2+ doping content of 5~15 mol%. NaOH was used as the mineralizer. X-ray diffraction analysis indicated that the as-prepared Co-doped ZnO had the pure ZnO wurtzite structure. UV–Visible spectroscopy had shown that the Co ions are substituted to Zn ions in ZnO matrix. Room temperature VSM revealed a paramagnetic behavior of the Co-doped ZnO samples. FE-SEM analyses showed that nanocrystalline powders of pure Zn095Co0.05O and Zn09Co0.1O could be prepared by the hydrothermal method.
Wei Pan and Jianghong Gong
H. Q. Li et al., "Preparation of Zn1-xCoxO Diluted Magnetic Semiconductor by Hydrothermal Method", Key Engineering Materials, Vols. 368-372, pp. 620-622, 2008