Growth of carbon nanotubes on spontaneously detached free standing diamond films and their field emission properties

Year: 2012

Type: article

Abstract: Carbon nanotubes (CNTs) have been fabricated on free-standing microcrystalline diamond (FSD) films by hot filament chemical vapor deposition using Ni as catalyst. Micro Raman spectroscopy has been used as a primary technique to characterize the hybrid material, while electron microscopy and electron energy loss spectroscopy served as complementary characterization techniques. The fabricated material shows the presence of multiwall carbon nanotubes of diameters in the range of 10–15 nm with a wall thickness of 5–6 nm protruding from the free-standing microcrystalline diamond films of crystallite sizes ranging from 0.5 to 2.0 μm. The CNT-FSD films show good field emission properties with low turn-on field, large field enhancement factor, and an excellent current stability over a period of 10 days.

Source: Diamond and Related Materials

DOI: 10.1016/j.diamond.2012.09.009

Authors: Deepak Varshney, Anirudha V. Sumant, Brad R. Weiner, Gerardo Morell

Institutions: University of Puerto Rico System, Argonne National Laboratory, Center for Nanoscale Materials

Language: English

Topic: Carbon Nanotubes in Composites

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,690

Funders: National Science Foundation, U.S. Department of Energy, National Aeronautics and Space Administration, Institute for Functional Nanomaterials, Office of Science, Basic Energy Sciences, Office of Experimental Program to Stimulate Competitive Research

OpenAlex ID: W2045638789