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The thermionic and photoelectric work functions of molybdenum

DuBridge, Lee A. and Roehr, W. W. (1932) The thermionic and photoelectric work functions of molybdenum. Physical Review, 42 (1). pp. 52-57. ISSN 0031-899X.

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The photoelectric and thermionic emission from pure molybdenum was studied during a prolonged process of outgassing by heat treatment at temperatures up to 2100°K. In a sealed-off tube an equilibrium condition was reached which was not changed by further treatment extending up to 1600 hours. Photoelectric curves taken at room temperature and at 940°K and analyzed by Fowler's method yielded a true work function for the outgassed Mo of 4.15±0.02 volts. Thermionic data for the same specimen also yielded a work function of 4.15 volts, and a value of the constant A close to the theoretical value of 60 amp./cm^2 deg.^2.

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Additional Information:©1932 The American Physical Society. Received 20 August 1932. The work described in this paper was made possible by assistance to the first named author from a grant made by the Rockefeller Foundation to Washington University for research in science.
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4262
Deposited By: Tony Diaz
Deposited On:11 Aug 2006
Last Modified:02 Oct 2019 23:11

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