Photoinduced Electron Transfer in Binary Blends of Conjugated Polymers.
Abstract
We report the first observation of photoinduced electron transfer between two pi-conjugated polymers in binary systems. Picosecond transient absorption and fluorescent spectroscopies of mixtures of n-type (electron accepting) poly(benzimidazobenzophenanthroline ladder) (BBL) and p-type (electron donating) poly(p-phenylene benzobisthiazole) (PBZT) evidence intermolecular electron transfer when BBL is selectively photoexcited. The results suggest that blends of pi-conjugated polymers are supramolecular materials which have novel features such as delocalized radical ion pairs or diion pairs, novel properties, and implications for organic p-n junction devices, photodiodes, photovoltaic cells, photoreceptors, and molecular electronic devices. Observation of photoinduced electron transfer between the components of the binary blends also implies molecular level miscibility of the blends.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 09, 1996
- Accession Number
- ADA314779
Entities
People
- L. R. De Paor
- S. A. Jenekhe
Organizations
- University of Rochester