| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Van, J. K. J. Duren
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2005Compositional dependence of the performance of poly(p-phylene vinylene): methanofullerene bulk-heterojunction solar cellscitations
- 2004Characterization of poly(p-phenylene vinylene)/methanofullerene blends of polymer solar cells by time-of-flight secondary ion mass spectrometrycitations
- 2004Relating the morphology of poly(p-phenylene vinylene)/methanofullerene blend to bulk heterojunction solar cell performancecitations
- 2004Morphology and thermal stability of the active layer in poly(p-phenylenevinylene)/methanofullerene plastic photovoltaic devicescitations
- 2004Relating the morphology of poly(p-phenylene vinylene)/methanofullerene blends to solar-cell performancecitations
- 2003Characterization of polymer solar cells by TOF-SIMS depth profilingcitations
- 2003Thermally induced transient absorption of light by poly(3,4-ethylenedioxythiophene):Poly(styrene sulfonic acid) (PEDOT:PSS) films: A way to probe charge-carrier thermalization processescitations
- 2002Simulation of electrical conductivity in a pi-conjugated polymeric conductor with infrared lightcitations
- 2002The use of the focused ion beam technique to prepare cross-sectional transmission electron microscopy specimen of polymer solar cells deposited on glasscitations
- 2002In-situ compositional and structural analysis of plastic solar cells
Places of action
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article
Thermally induced transient absorption of light by poly(3,4-ethylenedioxythiophene):Poly(styrene sulfonic acid) (PEDOT:PSS) films: A way to probe charge-carrier thermalization processes
Abstract
IR-induced transient absorptions in the millisecond and sub-picosecond time domains have been used to study the dynamics of charge carriers of a conducting polymer, poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS). On the millisecond timescale, the transient absorption is ascribed to a thermal effect induced by absorbed IR light. The decay of the transient absorption is limited by the transport of heat from the polymer film to the substrate and corresponds to the decay kinetics of IR-induced changes in the resistivity of the material. Near 1.5 eV, the IR-induced absorption can be modeled in terms of an interband transition. The assignment of the optical transients in terms of carrier heating opens the possibility to study charge carrier thermalization processes using short laser pulses. Pump-probe spectroscopy on a sub-picosecond timescale shows that the initial thermalization of the excited charge carriers occurs with a time const. of less than 500 fs, i.e., faster than for noble metals