ScholarLens Back to search
2007•Journal of Inorganic MaterialsRequires access

Comparison of Field Emission in Carbon Nanotubes and Gallium-doped Carbon Nanotubes

Chao Ming

Open publisher page 1 citations

Abstract

Carbon nanotubes and Ga-doped carbon nanotubes were synthesized by pyrolysis and then purified. Thin films of the purified samples were fabricated by a screen-printing method. Field emission properties of these films were studied. It was shown that the turn-on field of carbon nanotubes and Ga-doped carbon nanotubes was 2.22V/μm and 1.0V/μm, and the current densities were 400μA/cm2 and 4000μA/cm2 for carbon nanotubes and Ga-doped carbon nanotubes at applied fields 2.4V/μm. The electron field emission properties of the gallium-doped nanotubes were much better than those of carbon nanotubes. Mechanisms of field emission of gallium-doped nanotubes were explained.

About this research paper

What this paper is about

Carbon nanotubes and Ga-doped carbon nanotubes were synthesized by pyrolysis and then purified. Thin films of the purified samples were fabricated by a screen-printing method. Field emission properties of these films were studied. It was shown that the turn-on field of carbon nanotubes and Ga-doped carbon nanotubes was 2.22V/μm and 1.0V/μm, and the current densities were 400μA/cm2 and 4000μA/cm2 for carbon nanotubes and Ga-doped carbon nanotubes at applied fields 2.4V/μm. The electron field emission properties of the gallium-doped nanotubes were much better than those of carbon nanotubes. Mechanisms of field emission of gallium-doped nanotubes were explained.

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Carbon nanotubes and Ga-doped carbon nanotubes were synthesized by pyrolysis and then purified. Thin films of the purified samples were fabricated by a screen-printing method. Field emission properties of these films were studied. It was shown that the turn-on field of carbon nanotubes and Ga-doped carbon nanotubes was 2.22V/μm and 1.0V/μm, and the current densities were 400μA/cm2 and 4000μA/cm2 for carbon nanotubes and Ga-doped carbon nanotubes at applied fields 2.4V/μm. The electron field emission properties of the gallium-doped nanotubes were much better than those of carbon nanotubes. Mechanisms of field emission of gallium-doped nanotubes were explained.

Key concepts: Carbon nanotube, Materials science, Gallium, Field electron emission, Potential applications of carbon nanotubes, Optical properties of carbon nanotubes, Carbon nanofiber, Frit compression

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Comparison of Field Emission in Carbon Nanotubes and Gallium-doped Carbon Nanotubes — Research Paper | ScholarLens