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Zinc oxide (ZnO) nanostructures were grown on vertically aligned carbon nanotubes (CNTs) using thermal chemical vapor deposition (CVD) to enhance the field emission characteristics. The shape of ZnO nanostructure was tapered. Scanning electron microscopy (SEM) image showed the ZnO nanostructures were grown onto CNT surface uniformly. The field electron emission of pristine CNTs and ZnO-coated CNTs...
Zinc oxide nanopencil arrays were synthesized on pyramidal Si(100) substrates via a simple thermal evaporation method. Their field emission properties have been investigated: the turn-on electric field (at the current density of 10μA/cm 2 ) was about 3.8V/μm, and the threshold electric field (at the current density of 1mA/cm 2 ) was 5.8V/μm. Compared with similar structures grown on...
Single-crystalline, pyramidal zinc oxide nanorods have been synthesized in a large quantity on p-Si substrate via catalyst-free thermal chemical vapor deposition at low temperature. SEM investigations showed that the nanorods were vertically aligned on the substrate, with diameters ranging from 60 to 80nm and lengths about 1.5μm. A self-catalysis VLS growth mechanism was proposed for the formation...
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