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This paper reports the characteristic field emission (FE) properties of single-walled carbon nanotubes (SWNTs) synthesized on the inside pores of a porous silicon (PS) substrate, as well as on the top surface of a PS substrate. Their turn-on fields and emission current densities are measured and compared with those of other types of SWNTs in similar environments. Investigation of field emission properties...
In this work, we investigate the field emission characteristics of carbon nanotube forest on three types substrate: (1) mirror polished, (2) chemically etched (large pattern) and (3) chemically etched (small pattern) Si substrate. The surface morphology of CNTs forest was characterized by scanning electron microscopy (SEM), surface chemical state and electronic structure phase analyzed by X-ray photoelectron...
Single-wall carbon nanotubes (SWNT) filled with fullerene (Ceo) were discovered by Smith et al. [1] and synthesized in vacuum. The peapod have attracted much attention due to unique properties as a new carbon related material in recently decade. These 'peapods' generally occur as highly ordered long chains with the same ~10 A intermolecular spacing as in the fee solid. Cgo is a strong electrophile,...
In this paper, ZnO nanorods were synthesized by the hydrothermal process on various substrates such as glass, ITO, p-type porous silicon and n-type porous silicon by dipping in ZnO solution and atomic layer deposition method. The thin films a grown on substrates were washed with deionized water to eliminate residual salts, dried in air, and annealed at 400 degC. Scanning electron microscopy and X-ray...
In this work, the field emission property of wide band gap material (WBGM)-coated carbon nanotubes. The secondary electron emission behavior of MgO- and MgO/CsI-coated nanotubes were also investigated. The high secondary electron emission yields may be ascribed to the geometrical effect of the MgOand MgO/CsI-coated SWNTs
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