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Title page for ETD etd-04012007-184852


Type of Document Master's Thesis
Author Davis, Ian Ly
Author's Email Address ian.l.davis@vanderbilt.edu
URN etd-04012007-184852
Title Thermionic Emission of Diamond Using Laser as a Heat Source
Degree Master of Science
Department Electrical Engineering
Advisory Committee
Advisor Name Title
Bo K. Choi Committee Chair
Weng P. Kang Committee Co-Chair
Keywords
  • schottky effect
  • pulsed
  • fowler-nordheim
  • Thermionic emission
  • Diamond thin films--Testing
Date of Defense 2007-03-28
Availability unrestricted
Abstract
Preliminary experimentation shows diamond emits electrons at high temperature through a phenomenon known as thermionic emission. This thesis details an experiment to quantify the thermionic emission of a diamond on silicon vacuum cathode at high temperatures and to test the efficiency of thermal heating as a means of emission. Using a pulsed laser as a heat source for the cathode, experiments were run to determine the emission characteristics of both a diamond-coated silicon cathode and a bare silicon cathode. The results of each device are compared. Results of the experiment show a thermionic emission characteristic following a Schottky emission plot for each device. An Arrhenius plot was made from Richardsonís equation to show the activation energy required for the diamond on silicon device to make a transition from silicon emission to diamond emission.
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