Accession Number:

AD0627705

Title:

TRANSITION METAL COMPLEXES AS POTENTIAL SEMICONDUCTORS.

Descriptive Note:

Final technical rept.,

Corporate Author:

CLARK UNIV WORCESTER MASS

Personal Author(s):

Report Date:

1965-12-31

Pagination or Media Count:

114.0

Abstract:

Electron transfer reaction mechanisms were studied through the measurement of the electrical properties of the coordination complex tris-o-phenanthroline iron II-hexachloroiridate and its analogs, as well as the organic ligands dipyridyl and orthophenanthroline. The plots of log C vs. 1T for these complexes have a break in the curve, indicating the presence of both intrinsic and extrinsic conduction paths where C is the conductivity. The unusually high value for C at infinite temperature is shown to be consistent with a quantum mechanical tunneling model based on the formation of charge carriers and ion pairs from the neutral species constituting the microcrystallites. A current can be maintained when, under the influence of an electric field, the charge carriers undergo tunneling through a potential barrier formed at the edges of the microcrystallites. It is shown that a relationship between the mechanism for the conduction of these complexes and that for the organic ligands should exist.

Subject Categories:

  • Organic Chemistry
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE