Protonation and Chemical Doping Behavior of Poly(P-Phenylene Benzobisthiazole) (BPZT): Towards Stable n-Type Conjugated Polymers (Preprint)
Abstract
Poly(p-phenylene benzobisthiazole) (PBZT) is a rigid-rod polymer that has been thoroughly studies for its good mechanical and thermo-oxidative properties. Recently, however, it was discovered that PBZT also exhibits quite interesting and unusual optical and electrical properties that are highly dependent upon the presence of an acid within the film, which acts to protonate the nitrogen sites in the aromatic heterocycle. When protonated, this material becomes a very good electron acceptor and can be n-type (reductively) doped with a variety of metals to yield a high conductive material. The doped material is stable with respect to water, but becomes de-doped in the presence of oxygen. A thorough examination of the protonation and chemical doping behavior of thin films of PBZT in a variety of different acids is presented and a general mechanism is discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2007
- Accession Number
- ADA472077
Entities
People
- Marc Mecoli
- Michael F. Durstock