Accession Number : AD0782697

Title :   A. C. Conduction in Bis (catena-poly(methylarsenic)) an Organic Ladder Polymer.

Descriptive Note : Interim rept.,


Personal Author(s) : Lewis,J. E. ; Edris,M.

Report Date : 10 JUL 1974

Pagination or Media Count : 36

Abstract : The dark complex impedance of bis (catena-poly(methylarsenic)), an organic ladder polymer, has been measured as a function of frequency and temperature with a 0.1 volt rms ac signal. Conduction is due to a parallel combination of intrinsic excitation of carriers across an energy gap and ac field assisted carrier hopping between localized centers. A temperature and frequency dependent activation energy is indicated for this process. Polarization phenomena at these low frequencies are also seen in the current-voltage characteristics of the material and in the response of the samples to step function changes in the applied dc voltage. It is thought that this polarization is associated with losses in the intrinsic conduction mechanism. (Modified author abstract)

Descriptors :   *Arsines, *Electrical impedance, *Inorganic polymers, *Semiconductors, Polarization, Electrical conductivity, Alternating current, Activation energy, Temperature, Frequency, Band theory of solids, Charge carriers, Crystal structure, Electrical resistance, Capacitance, Electrical properties, Excitation, Molecular structure

Subject Categories : Polymer Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE