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Electron emission into dielectric liquids

LePage, Wilbur R. and DuBridge, L. A. (1940) Electron emission into dielectric liquids. Physical Review, 58 (1). pp. 61-66. ISSN 0031-899X.

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The current between polished nickel electrodes immersed in pure toluene has been measured as a function of electric field (over the range 0 to 250,000 volts/cm) and of temperature (from - 15 to 70°C). The Richardson lines are straight but show a very small slope (0.05 to 0.4 ev) and a small value of the constant A (10^-9 to 10^-11 amp./cm^2 deg.^2). The logi vs. E1 / 2 curves show a slope about twice the value e3 / 2 / D1 / 2kT predicted by the simple Schottky theory, but in agreement with the theory of Baker and Boltz. It is found however that there are serious objections to this theory, and the agreement with it is probably accidental. The situation is in fact too complex to be handled by a simple theory. It is suggested that for the low potential barrier present at the metal-dielectric interface a combination of thermionic and field currents would be expected which would account qualitatively for the observed behavior.

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Additional Information:© 1940 by The American Physical Society. Received May 2, 1940.
Issue or Number:1
Record Number:CaltechAUTHORS:LEPpr40
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10567
Deposited By: Tony Diaz
Deposited On:19 May 2008
Last Modified:03 Oct 2019 00:10

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