One new luminescent material of complex {[Cd（DPA）（H_2O）_2]·（H_2O）_2}_n（1） was synthesized by evaporation methods using 3,3A-thiodipropionic acid（DPA） and cadmium nitrate as the starting materials. Compo...One new luminescent material of complex {[Cd（DPA）（H_2O）_2]·（H_2O）_2}_n（1） was synthesized by evaporation methods using 3,3A-thiodipropionic acid（DPA） and cadmium nitrate as the starting materials. Compound 1 crystallizes in the monoclinic system,space group P2_1/n with a = 7.5460（7）,b = 13.372（3）,c = 12.304（3） A,β = 95.95（3）o,V = 1234.8（4） A^3,D_c = 1.940 g/cm^3,C_6H_（16）O_8 SCd,M_r = 360.65,F（000） = 720,μ（Mo Ka） = 1.960 mm^-1,Z = 4,R = 0.0460 and wR = 0.1185 for 1835 observed reflections（I 〉 2σ（I））,and R = 0.0591,wR = 0.1245 for all data. The complex has been characterized by elemental analysis,FT-IR,TG,PXRD and X-ray single-crystal structure analysis and the fluorescence property has also been studied. As a result,complex 1 possesses a two-dimensional（2-D） structure through DPA ligands interconnecting Cd2＋ ions. Complex 1 emits the intense fluorescence of 420 nm in the solid state at room temperature.展开更多
Zn0.95Co0.05O precipitate-free single crystal thin films were synthesized by a dual beam pulsed laser deposition method. The films form a wurtzite structure whose hexagonal axis is perpendicular or parallel to the pla...Zn0.95Co0.05O precipitate-free single crystal thin films were synthesized by a dual beam pulsed laser deposition method. The films form a wurtzite structure whose hexagonal axis is perpendicular or parallel to the plane of the surface depending on the C-plane （0001） or R-plane （1120） sapphire substrate. Based on the results of high-resolution transmission electron microscopy and x-ray diffraction, C-plane films show larger lattice mismatch. The films exhibit magnetic and semiconductor properties at room temperature. The coercivity of the film is about 8000 A/m at room temperature. They are soft magnetic materials with small remanent squareness S for both crystal orientations. There is no evidence to show that the anisotropy is fixed to the hexagonal axis （C-axis） for the wurtzite structure.展开更多
基金supported by the National Natural Science Foundation of China(No.51302067)the Team of Guangdong Ocean University(No.1312435)
文摘One new luminescent material of complex {[Cd（DPA）（H_2O）_2]·（H_2O）_2}_n（1） was synthesized by evaporation methods using 3,3A-thiodipropionic acid（DPA） and cadmium nitrate as the starting materials. Compound 1 crystallizes in the monoclinic system,space group P2_1/n with a = 7.5460（7）,b = 13.372（3）,c = 12.304（3） A,β = 95.95（3）o,V = 1234.8（4） A^3,D_c = 1.940 g/cm^3,C_6H_（16）O_8 SCd,M_r = 360.65,F（000） = 720,μ（Mo Ka） = 1.960 mm^-1,Z = 4,R = 0.0460 and wR = 0.1185 for 1835 observed reflections（I 〉 2σ（I））,and R = 0.0591,wR = 0.1245 for all data. The complex has been characterized by elemental analysis,FT-IR,TG,PXRD and X-ray single-crystal structure analysis and the fluorescence property has also been studied. As a result,complex 1 possesses a two-dimensional（2-D） structure through DPA ligands interconnecting Cd2＋ ions. Complex 1 emits the intense fluorescence of 420 nm in the solid state at room temperature.
基金supported by the Data Storage Institute Project entitled "Magnetic semiconductor forspintronics materials" ,project code DSI/03-200001
文摘Zn0.95Co0.05O precipitate-free single crystal thin films were synthesized by a dual beam pulsed laser deposition method. The films form a wurtzite structure whose hexagonal axis is perpendicular or parallel to the plane of the surface depending on the C-plane （0001） or R-plane （1120） sapphire substrate. Based on the results of high-resolution transmission electron microscopy and x-ray diffraction, C-plane films show larger lattice mismatch. The films exhibit magnetic and semiconductor properties at room temperature. The coercivity of the film is about 8000 A/m at room temperature. They are soft magnetic materials with small remanent squareness S for both crystal orientations. There is no evidence to show that the anisotropy is fixed to the hexagonal axis （C-axis） for the wurtzite structure.
