The nanowires of Y 2O 3∶Eu 3+ phosphor were synthesized by using AAO template method. By the observation of the SEM images,the characteristics of morphologies between Y 2O 3∶Eu 3+ nanowires and Al 2O 3 nanowires pro...The nanowires of Y 2O 3∶Eu 3+ phosphor were synthesized by using AAO template method. By the observation of the SEM images,the characteristics of morphologies between Y 2O 3∶Eu 3+ nanowires and Al 2O 3 nanowires produced by etching the empty AAO template was compared. The results of the SEM image analysis indicate that each nanowire is composed of a lot of agglutinating nanoparticles. At the same time,the Y 2O 3∶Eu 3+ nanowires were confirmed by EDX and PL spectra. The results of the XRD and SAED show that Y 2O 3∶Eu 3+ nanowires are mainly composed of polycrystalline materials with a cubic phase.展开更多
With the silanized porous anodic alumina（PAA） as a templates, an array of concentric composite nanostructures of Ni nanotubes/γ-Fe2O3 nanowires were prepared by electrodeposition and chemical precipitation. The mic...With the silanized porous anodic alumina（PAA） as a templates, an array of concentric composite nanostructures of Ni nanotubes/γ-Fe2O3 nanowires were prepared by electrodeposition and chemical precipitation. The microstructure of the nanowires and nanotubes was studied by employing the transmission electron mircoscope（TEM） and X-ray diffraction（XRD） techniques respectively. The results show that the diameter of composite nanowires is about 50 nm, the shell of the composite nanowires is the amorphous Ni nanotuble with a thickness from 4-15 nm by varying electrodeposition parameters and it coats a polycrystalline γ-Fe2O3 core.展开更多
文摘The nanowires of Y 2O 3∶Eu 3+ phosphor were synthesized by using AAO template method. By the observation of the SEM images,the characteristics of morphologies between Y 2O 3∶Eu 3+ nanowires and Al 2O 3 nanowires produced by etching the empty AAO template was compared. The results of the SEM image analysis indicate that each nanowire is composed of a lot of agglutinating nanoparticles. At the same time,the Y 2O 3∶Eu 3+ nanowires were confirmed by EDX and PL spectra. The results of the XRD and SAED show that Y 2O 3∶Eu 3+ nanowires are mainly composed of polycrystalline materials with a cubic phase.
文摘With the silanized porous anodic alumina（PAA） as a templates, an array of concentric composite nanostructures of Ni nanotubes/γ-Fe2O3 nanowires were prepared by electrodeposition and chemical precipitation. The microstructure of the nanowires and nanotubes was studied by employing the transmission electron mircoscope（TEM） and X-ray diffraction（XRD） techniques respectively. The results show that the diameter of composite nanowires is about 50 nm, the shell of the composite nanowires is the amorphous Ni nanotuble with a thickness from 4-15 nm by varying electrodeposition parameters and it coats a polycrystalline γ-Fe2O3 core.
