Photoinduced Electron Transfer in Binary Blends of Conjugated Polymers.
ROCHESTER UNIV NY DEPT OF CHEMICAL ENGINEERING
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We report observation of photoinduced electron transfer between two n-conjugated polymers in binary mixtures. Picosecond transient absorption and fluorescence spectroscopies of mixtures of n-type electron accepting poly benzimidazobenzophenanthroline ladder BBL and p-type electron donating poly p- phenylene benzobisthiazole PBZT or polyp-2-hydroxy-phenylene berizobisoxazole HPBO evidence intermolecular electron transfer when BBL is selectively photoexcited. The results suggest that blends of n-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.
- *ELECTRON TRANSFER
- *PHOTOVOLTAIC EFFECT
- ZIRCONIUM COMPOUNDS
- ELECTRONIC EQUIPMENT
- LEAD TITANATES
- SEMICONDUCTOR JUNCTIONS
- MOLECULE MOLECULE INTERACTIONS
- MOLECULAR ELECTRONICS
- Electrical and Electronic Equipment
- Electrooptical and Optoelectronic Devices
- Electric Power Production and Distribution
- Fiber Optics and Integrated Optics