Electron trapping and detrapping in ion-beam-damaged diamond surfaces

Hoffman, A.; Andrienko, I.; Jamieson, D. N.; Prawer, S.
January 2005
Applied Physics Letters;1/24/2005, Vol. 86 Issue 4, p044103
Academic Journal
Ion-beam-damaged diamond surfaces subjected to electron irradiation are observed to develop a pronounced negative surface charge. In this study, this effect is shown to be associated with the capture of electrons into traps created by the ion irradiation process. The trapped charge increases with ion dose and incident electron current, and decreases with increasing sample temperature and laser illumination as the traps are depleted of charge. An activation energy for detrapping of about 1.5 eV is deduced from the temperature dependence of the charging.


Related Articles

  • Experimental study of the influence of the processes in the ion-beam drift space on beam current measurements. Gavrilov, N.V.; Kamenetskikh, A.S. // Technical Physics;Jun2006, Vol. 51 Issue 6, p708 

    A method is proposed for separate measurements of the current produced by slow charge-exchange ions and that produced by the ions generated due to gas ionization by the beam ions and fast secondary electrons in the beam drift space. The method is based on an analysis of the current distribution...

  • Studies of photogeneration of charge in polysilanes using thermally stimulated current measurements. Samuel, L. M.; Dove, D. B.; Sanda, P. N.; Miller, R. D.; Thompson, D. // Journal of Applied Physics;2/15/1991, Vol. 69 Issue 4, p2296 

    Reports on studies of photogeneration of charge in polysilanes resulting from multiple pulse excitation in thermally stimulated current measurements. Details of the experimental procedure; Explanation for the relationship between electrical current and temperature; Factor which affect the...

  • Space Charge Lens for Focusing of Negative Ion Beams. Soloshenko, I. A.; Goretsky, V. P.; Zavalov, A. M. // AIP Conference Proceedings;2005, Vol. 763 Issue 1, p176 

    A brief review of the results of experimental and theoretical studies of the space charge lens for focusing negative ion beam is presented. An idea of such lens was formulated earlier by the first two authors. For the present time, two versions of the lens are studied experimentally and...

  • Spatial and Temporal Characteristics of Electron and Ion Beams Generated by High-Voltage Nanosecond Discharges in Dense Molecular Gases. Babich, L. P.; Il'kaev, R. I.; Lo&ibreve;ko, T. V.; Pavlovskaya, N. G.; Punin, V. T. // Plasma Physics Reports;Jul2004, Vol. 30 Issue 7, p582 

    Observations of ordered-structure electron beams generated by high-voltage nanosecond discharges in relatively dense (0.04�1 torr) molecular gases at high overvoltages are reported. The beams of accelerated ions generated by high-voltage nanosecond discharges are found to exhibit the same...

  • Neutralization of space charge in magnetic field by electrons supplied from silicon based field emitter arrays. Daimaru, Tomohiro; Sakai, Shigeki; Gotoh, Yasuhito // AIP Conference Proceedings;Nov2012, Vol. 1496 Issue 1, p422 

    Neutralization of the space charge in a magnetic field by the electrons supplied from a silicon based field emitter array (Si-FEA) was experimentally investigated. In this report, we have studied the trajectory of electrons emitted from a Si-FEA. The relationship between these electrons and...

  • Introduction of the MC3-II/GP system, medium current ion implanter with enhanced multi-charge beam current. Koike, Masazumi; Sato, Fumiaki; Sano, Makoto; Kawatsu, Sho; Kariya, Hiroyuki; Kimura, Yasuhiko; Kudo, Tetsuya; Shiraishi, Miyuki; Shinozuka, Masamitsu; Takahashi, Yuji; Ishida, Yuji; Tsukihara, Mitsukuni; Ueno, Kazuyoshi; Sugitani, Michiro // AIP Conference Proceedings;Nov2012, Vol. 1496 Issue 1, p336 

    The MC3-II/GP is a leading-edge single-wafer medium-current ion implanter, newly developed by SEN Corporation. It demonstrates exceptional productivity based on a high speed wafer-handling station and enhanced beam current. It covers a substantively wider energy range in order to fully meet...

  • Mass, charge, and energy separation by selective acceleration with a traveling potential hill. Tung, L. Schwager; Barr, W. L.; Lowder, R. S.; Post, R. F. // Journal of Applied Physics;10/1/1996, Vol. 80 Issue 7, p3646 

    Deals with a study which used a travelling electric potential hill to generate an ion beam with an energy distribution that is mass dependent from a monoenergetic ion beam of mixed masses. Information on a method for separating monoenergetic ions of different masses or charge states;...

  • Ion beam propagation in a transverse magnetic field and in a magnetized plasma. Hong, R.; Wessel, F. J.; Song, J.; Fisher, A.; Rostoker, N. // Journal of Applied Physics;7/1/1988, Vol. 64 Issue 1, p73 

    Analyzes the propagation of a charge-neutralized ion beam. Experimental arrangement; Results of the study; Discussion of findings.

  • A technique for accurate measurements of ion beam current density using a Faraday cup. Sosolik, C. E.; Sosolik, C.E.; Lavery, A. C.; Lavery, A.C.; Dahl, E. B.; Dahl, E.B.; Cooper, B. H.; Cooper, B.H. // Review of Scientific Instruments;Sep2000, Vol. 71 Issue 9 

    We have performed measurements of the spatial distribution of current in various alkali and reactive ion beams over the energy range 5-600 eV using a Faraday cup. Ion beam current densities have been extracted from these measurements using a simple deconvolution procedure. Our results reveal...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics