Photoinduced multistep energy and electron transfer in an oligoaniline-oligo(p-phenylene vinylene)-fullerene triad
| العنوان: | Photoinduced multistep energy and electron transfer in an oligoaniline-oligo(p-phenylene vinylene)-fullerene triad |
|---|---|
| المؤلفون: | Ramos, AM, Meskers, SCJ, van Hal, PA, Knol, J, Hummelen, JC, Janssen, RAJ, Marcos Ramos, Alicia, Meskers, Stefan C.J., Janssen, René A.J. |
| المساهمون: | Stratingh Institute of Chemistry, University of Groningen, Chemistry of (Bio)organic Materials and Devices, Macromolecular and Organic Chemistry, Molecular Materials and Nanosystems |
| المصدر: | The Journal of Physical Chemistry A, 107(44), 9269-9283. AMER CHEMICAL SOC Journal of Physical Chemistry A, 107(44), 9269-9283. American Chemical Society |
| بيانات النشر: | American Chemical Society, 2003. |
| سنة النشر: | 2003 |
| مصطلحات موضوعية: | LASER FLASH-PHOTOLYSIS, Fullerene, Photoluminescence, Chemistry, ZINC PORPHYRIN, Triad (anatomy), Chromophore, PORPHYRIN-FULLERENE TRIAD, Photochemistry, Photoexcitation, Electron transfer, medicine.anatomical_structure, SELF-ASSEMBLED MONOLAYERS, Covalent bond, Phenylene, CHARGE RECOMBINATION DYNAMICS, N-METHYLFULLEROPYRROLIDINE, PHOTOPHYSICAL PROPERTIES, medicine, PHOTOCURRENT GENERATION, SOLVENT DEPENDENCE, Physical and Theoretical Chemistry, <60>FULLERENE-LINKED OLIGOTHIOPHENES |
| الوصف: | A donor-donor-acceptor triad, OAn-OPV-C-60, With a redox gradient has been synthesized by covalently linking an oligoaniline (OAn), an oligo(p-phenylene vinylene) (OPV), and a fullerene (C-60) in a nonconjugated linear array. Photoluminescence and femtosecond pump-probe spectroscopy studies reveal that photoexcitation of any of the three chromophores of this triad in a polar solvent results in formation of the OAn(-)OPV(+)-C-60(-) charge-separated state, after an efficient ultrafast ( 1 ns) due to weak electronic coupling between the distant redox sites in the excited state. The stabilization gained is more than I order of magnitude in time. The experimental results are found to be in qualitative agreement with Marcus theory. In thin films, the OAn(+)-OPV-C-60(-) state is formed at a higher rate and in higher quantum yield than in solution. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1089-5639 1520-5215 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f70a3c7b4c79757699361cb010b44421 https://research.tue.nl/en/publications/7b6f66de-1a5d-43b3-a2bf-16255d44acb9 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....f70a3c7b4c79757699361cb010b44421 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 10895639 15205215 |
|---|