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We report on the effects of post-annealing on ZnO nanorods array using optical second harmonic generation (SHG). The high-quality and nearly vertically aligned ZnO nanorod arrays were deposited on ZnO-seeded glass substrates by aqueous solution method. The SHG result indicated the transformation of oxygen deficiency on ZnO nanorods surface after post-annealing treatment process. The chemical composition...
We present an approach to mass produce high-quality graphene on insulator substrate. Ni dots with single or few grains were achieved by annealing. Electron backscattered diffraction indicated that almost all of the Ni dots had (111) surface that is parallel to the substrate. Single-layer graphene with good crystalline quality has been grown on Ni dots. The patterned graphene films were transferred...
In this work, diamond films were grown on TiSi2 surface coated on Si substrate using hot-filament CVD method. It is demonstrated that at the same condition, (001) textured diamond nuclei can be formed on Si and TiSi2 surface, however, when diamond films was grown on Si substrate, the (100) facet has a high growth rate, while as for the case of TiSi2 substrate, the (111) facet of diamond grows faster...
This study presents a novel selective growth method to pattern the high purity and single-walled carbon nanotubes (SWNTs) network by alcohol catalytic chemical vapor deposition (ACCVD). A hydrophilic surface with a contact angle of 44.22deg or even lower can disperse the Co-Mo catalysts easily and uniformly. Therefore, the SWNTs networks can be only formed and grown on the surface of SiO2 layer after...
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