| 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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Meskers, Stefan C. J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Origin and Energy of Intra-Gap States in Sensitive Near-Infrared Organic Photodiodescitations
- 2023Origin and Energy of Intra-Gap States in Sensitive Near-Infrared Organic Photodiodescitations
- 2021Photo-controlled alignment and helical organization in main-chain liquid crystalline alternating polymerscitations
- 2021Consequences of Chirality in Directing the Pathway of Cholesteric Helix Inversion of π-Conjugated Polymers by Lightcitations
- 2021Consequences of Chirality in Directing the Pathway of Cholesteric Helix Inversion of π-Conjugated Polymers by Lightcitations
- 2021Ultralow dark current in near-infrared perovskite photodiodes by reducing charge injection and interfacial charge generationcitations
- 2020Long-lived charge-transfer state from B−N frustrated Lewis pairs enchained in supramolecular copolymerscitations
- 2020Long-lived charge-transfer state from B−N frustrated Lewis pairs enchained in supramolecular copolymerscitations
- 2020Circularly Polarized Photoluminescence from Chiral Perovskite Thin Films at Room Temperaturecitations
- 2020On the origin of dark current in organic photodiodescitations
- 2019Impact of polymorphism on the optoelectronic properties of a low-bandgap semiconducting polymercitations
- 2018The effect of oxygen on the efficiency of planar p-i-n metal halide perovskite solar cells with a PEDOT:PSS hole transport layercitations
- 2018Bis(arylimidazole) iridium picolinate emitters and preferential dipole orientation in filmscitations
- 2017Thiophene rings improve the device performance of conjugated polymers in polymer solar cells with thick active layerscitations
- 2017Ultrafast charge and triplet state formation in Diketopyrrolopyrrole Low Band Gap Polymer/Fullerene blendscitations
- 2014Photoluminescence quenching in films of conjugated polymers by electrochemical dopingcitations
- 2014Effect of the fibrillar microstructure on the efficiency of high molecular weight diketopyrrolopyrrole-based polymer solar cellscitations
- 2014Relation between the electroforming voltage in alkali halide-polymer diodes and the bandgap of the alkali halidecitations
- 2012Electroforming process in metal-oxide-polymer resistive switching memories
- 2012Role of hole injection in electroforming of LiF-polymer memory diodescitations
- 2010Trapping of electrons in metal oxide-polymer memory diodes in the initial stage of electroformingcitations
- 2008Compositional and electric field dependence of the dissociation of charge transfer excitons in alternating polyfluorene copolymer/fullerene blendscitations
- 2006Synthesis and characterization of long perylenediimide polymer fibers : from bulk to the single-molecule levelcitations
- 2006Electronic memory effects in a sexithiophene - poly(ethylene oxide) block copolymer doped with NaCl. combined diode and resistive switching behaviorcitations
- 2006Triplet formation from the charge-separated state in blends of MDMO-PPV with cyano-containing acceptor polymerscitations
- 2005Exciplex dynamics in a conjugated polymer blend of MDMO-PPV and PCNEPV
- 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
- 2000Relaxation of photo-excitations in films of oligo- and poly-(para-phenylene vinylene) derivativescitations
Places of action
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article
Photoluminescence quenching in films of conjugated polymers by electrochemical doping
Abstract
An important loss mechanism in organic electroluminescent devices is exciton quenching by polarons. Gradual electrochemical doping of various conjugated polymer films enabled the determination of the doping density dependence of photoluminescence quenching. Electrochemical doping was achieved by contacting the film with a solid electrochemical gate and an injecting contact. A sharp reduction in photoluminescence was observed for doping densities between 1018 and 1019 cm 3. The doping density dependence is quantitatively modeled by exciton diffusion in a homogeneous density of polarons followed by either Förster resonance energy transfer or charge transfer. Both mechanisms need to be considered to describe polaron-induced exciton quenching. Thus, to reduce exciton-polaron quenching in organic optoelectronic devices, both mechanisms must be prevented by reducing the exciton diffusion, the spectral overlap, the doping density, or a combination thereof. © 2014 American Physical Society.