Accession Number : ADA314779
Title : Photoinduced Electron Transfer in Binary Blends of Conjugated Polymers.
Descriptive Note : Technical rept.,
Corporate Author : ROCHESTER UNIV NY DEPT OF CHEMICAL ENGINEERING
Personal Author(s) : Jenekhe, S. A. ; De Paor, L. R.
PDF Url : ADA314779
Report Date : 09 SEP 1996
Pagination or Media Count : 5
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.
Descriptors : *POLYMERS, *ELECTRON TRANSFER, *BINARY COMPOUNDS, TRANSIENTS, IONS, ZIRCONIUM COMPOUNDS, FLUORESCENCE, SPECTROSCOPY, MOLECULAR STATES, LEAD TITANATES, ELECTRON DONORS, MIXING, SEMICONDUCTOR JUNCTIONS, MOLECULE MOLECULE INTERACTIONS, N TYPE SEMICONDUCTORS, ABSORPTION, ELECTRON ACCEPTORS, PHOTODIODES, PHOTOVOLTAIC EFFECT, P TYPE SEMICONDUCTORS, MOLECULAR ELECTRONICS, PHOTORECEPTORS.
Subject Categories : Polymer Chemistry
Atomic and Molecular Physics and Spectroscopy
Solid State Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE