Skip to main content Accessibility help
×
Home

Electron emission from chemical vapor deposited diamond and amorphous carbon films observed with a simple field emission device

  • Z. Feng (a1), I.G. Brown (a1) and J.W. Ager (a1)

Abstract

Electron emission from chemical vapor deposited (CVD) diamond and amorphous carbon (a-C) films was observed with a simple field emission device (FED). Both diamond and a-C films were prepared with microwave plasma-enhanced CVD techniques. Electron emission in the ficld strength range + 10 to −10 MVm−1 was studied, and the field emission source was confirmed by a diode characteristic of the I-V curve, a straight line in the Fowler-Nordheim (F-N) plot, and direct observation of light emission from a fluorescent screen. The turn-on field strength was ∼5 MVm−1, which was similar for both kinds of carbon films. The highest current density for diamond films, observed at a field strength of 10 MVm−1, was ∼15 μA cm−2. Diamond films yielded a higher emission current than a-C films. The reasons for the observed field emission are discussed.

Copyright

References

Hide All
1Geis, M. W. and Angus, J. C., Sci. Am. 267, 84 (1992).
2Angus, J. C. and Collins, A., Nature (London) 370, 601 (1994).
3Geis, M. W., Efremow, N. N., Woodhouse, J. D., McAleese, M.D., Marchywka, M., Socker, D. G., and Hochedez, J. F., IEEE Lett. 12, 456 (1991).
4Wang, C., Garcia, A., Ingram, D. C., Lake, M., and Kordesch, M. E., Electron. Lett. 27, 1459 (1991).
5Xu, N. S., Tzeng, Y., and Latham, R. V., J. Phys. D: Appl. Phys. 26, 1776 (1993).
6Okano, K., Hoshina, K., Lida, M., Koizumi, S., and Inuzuka, T., Appl Phys. Lett. 64, 2742 (1994).
7Himpsel, F. J., Knapp, J. A., Van Vechten, J. A., and Eastman, D. E., Phys Rev. B 20, 624 (1979).
8Davis, H. A., Rej, D. J., Johnston, G. P., Muenchausen, R. E., Schmid, H. K., Tallant, D. R., Thompson, M., Waganaar, W. J., and Williams, D.B., IEEE Conf. Record-Abstracts, 94CH3465–2, June 6–8, 1994, Santa Fe, NM, p. 164.
9Brewer, M. A., Brown, I. G., Dickinson, M. R., Galvin, J. E., MacGill, R. A., and Salvadori, M. C., Rev. Sci. Instrum. 63, 3389 (1992).
10Feng, Z., Komvopoulos, K., Brown, I. G., and Bogy, D. B., J. Mater. Res. 9, 2148 (1994).
11Anders, S., Anders, A., Brown, I. G., Wei, B., Komvopoulos, K., Ager, J. W. III, and Yu, K. M., Surf. Coat. Technol. (1995, in press).
12Knight, D. S. and White, W. B., J. Mater. Res. 4, 385 (1989).
13Wang, Z., Feng, Z., and Brown, I. G., unpublished.

Electron emission from chemical vapor deposited diamond and amorphous carbon films observed with a simple field emission device

  • Z. Feng (a1), I.G. Brown (a1) and J.W. Ager (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed