Theoretical Study of a Metal/CdS/LaS Cold Cathode

Send an email to marc.cahay@uc.edu for information regarding any related publications. The simulations below show the time dependence of the charge density, convection current and electrostatic potential energy across the air gap of a Metal/CdS/LaS cold cathode. The results are shown for a cathode with a 75A wide CdSl layer. A full description of the cathode and numerical resutls can be found in P.Mumford and M. Cahay, "Space-Charge Effects and Current Self-Quenching in a Metal/CdS/LaS cold cathode", to appear in the Journal of Applied Physics (August 1998). The simulations are shown past the transient. The LaS thin film and the anode are the leftmost and rightmost points on the x axis. The period of the oscillations correspond to a frequency of 56 Ghz. This work is supported by the National Science Foundation under award Award ECS-9632511. You can download the postcript version of a recent paper published in Journal of Applied Physics on the simulations of space-charge effects in a Metal/CdS/InP cold cathode right here JAP paper, April 2000

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Refereed Journals

  • O. Eriksson, M. Cahay, J. Wills, "The Use of Rare-Earth Sulfides to Achieve Negative Electron Affinity at The Surface of Compound Semiconductors", submitted to Physical Review Letters, April 2001.
  • Y. Modukuru, J. Thachery, H. Tang, A. Malhotra, M. Cahay and P. Boolchand, "Growth and Characterization of Rare-Earth Monosulfides for Cold Cathode Applications", submitted to Journal of Vacuum Science and Technology , March 2001.
  • Y. Modukuru, M. Cahay, H. Kolinsky, and P. D. Mumford, "Onset of Current Self-Quenching in a Metal/CdS/LaS Cold Cathode in the Presence of Inelastic Scattering in the CdS Layer", Journal of Applied Physics, Vol. 87, 3386 (2000).
  • A. Malhotra, Y. Modukuru and M. Cahay, "Self-Heating Effects in a InP/CdS/LaS Cold Cathode", Journal of Vacuum Science and Technology, B 16, pp.3086-3095 (1998).
  • P. Mumford and M. Cahay, "Space-Charge Effects and Current Self-Quenching in a Metal/CdS/LaS$ Cold Cathode", Journal of Applied Physics, Vol.84, pp.2754-2767 (1998).
  • O. Eriksson, J. Willis, P. D. Mumford, M. Cahay, and W. Friz, "Electronic Structure of the LaS Surface and LaS/CdS interface in a new Cold Cathode Configuration", Physical Review B, Vol. 57, pp.4067-4072 (1998).
  • P. D. Mumford and M. Cahay, "Current Crowding Effects in a CdS/LaS Cold Cathode", Journal of Applied Physics, Vol. 81(8), pp.3707-3715 (1997).
  • P. D. Mumford and M. Cahay, "Dynamic Work Function Shift in Cold Cathode Emitters Using Current Carrying Thin Films", Journal of Applied Physics, Vol.79(5), pp.2176-2179 (1996).
  • P. D. Mumford and M. Cahay, "Monte Carlo Simulation of GaN Cold Cathodes", Superlattices and Microstructures, Vol.19(1), pp.327-335 (1996). Back to M. Cahay's Homepage