SYNTHESIS AND CHARACTERIZATION OF SOME HIGHLY CONJUGATED SEMI-CONDUCTING POLYMERS
Abstract
A series of highly conjugated, semiconducting polymers was synthesized and electronically characterized. The conductivities of polymers, produced, ranged from approximately 1/10 to the 3rd power to 10 to the 11th power mho cm at room temperature. A correlation between conductivity in PAQR polymers, and the size of the aromatic hydrocarbon monomer, were established. Thermoelectric power measurements, and a Hall determination generally indicated p-type conductivity in the polymers. Additional electrical determinations included: Thermal activation energy of conduction, ohmic behavior, carrier species, electron spin density, thermal and chemical stability, and photo-electrical effects. The electronic nature of conduction in the polyacene quinone radical polymers was proven by observing a large (positive) Hall coefficient, and the stability of conduction to large charge passage. Nonohmic behavior was observed at low electric field strengths.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0273723
Entities
People
- E. H. Engelhardt
- H. A. Pohl
Organizations
- Princeton University