Metallic selenium in the crystalline form is an electrical conductor. In the amorphous form, which may be produced by melting a selenium crystal, the substance is an electrical insulator. If, as supposed, electrical conductivity in metals is due to free electrons, then in the change from the conducting to the non-conducting state there must be a disappearance of free electrons. This disappearance could be accounted for by a liberation of electrons into the space surrounding the substance, or by a recombination of free electrons with positive residues to form the neutral molecules of the insulator. In this paper is described an experiment to test the question of liberation of electrons during a change from the conducting to the non-conducting state.
Proceedings of the Iowa Academy of Science
©1915 Iowa Academy of Science, Inc.
Dodd, L. E.
"The Absence of Liberation or Absorption of Electrons during a Change from the Conduction to the Non-conducting State,"
Proceedings of the Iowa Academy of Science, 22(1), 307-310.
Available at: https://scholarworks.uni.edu/pias/vol22/iss1/41