| 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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Stingelin, Natalie
University of Bordeaux
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Using spatial confinement to decipher polymorphism in the organic semiconductor p-DTS(FBTTh2)2citations
- 2023Conjugated polymer blends for faster organic mixed conductorscitations
- 2023Mission Immiscible: Overcoming the Miscibility Limit of Semiconducting:Ferroelectric Polymer Blends via Vitrificationcitations
- 2022Conjugated Polymer Blends for Faster Organic Mixed Conductorscitations
- 2021Improving molecular alignment and charge percolation in semiconducting polymer films with highly localized electronic states through tailored thermal annealingcitations
- 2020High-density polyethylene—an inert additive with stabilizing effects on organic field-effect transistorscitations
- 2020Enhanced Electrocaloric Response of Vinylidene Fluoride–Based Polymers via One‐Step Molecular Engineeringcitations
- 2020The Importance of Quantifying the Composition of the Amorphous Intermixed Phase in Organic Solar Cellscitations
- 2019Managing local order in conjugated polymer blends via polarity contrastcitations
- 2019The Role of Morphology in Optically Switchable Transistors Based on a Photochromic Molecule/p‐Type Polymer Semiconductor Blendcitations
- 2015Polytellurophenes provide imaging contrast towards unravelling the structure–property–function relationships in semiconductor:insulator polymer blendscitations
- 2015Microstructured organic ferroelectric thin film capacitors by solution micromoldingcitations
- 2015Entanglements in Marginal Solutions: A Means of Tuning Pre-Aggregation of Conjugated Polymers with Positive Implications for Charge Transportcitations
- 2014Additive-assisted supramolecular manipulation of polymer:fullerene blend phase morphologies and its influence on photophysical processescitations
- 2014Tailoring the void space and mechanical properties in electrospun scaffolds towards physiological ranges
- 2014Bis(triisopropylsilylethynyl)pentacene/Au(111) interface: Coupling, molecular orientation, and thermal stabilitycitations
- 2013Microstructure formation in molecular and polymer semiconductors assisted by nucleation agentscitations
- 2012Processing and Low Voltage Switching of Organic Ferroelectric Phase-Separated Bistable Diodescitations
- 2012Ferroelectric Phase Diagram of PVDF:PMMAcitations
- 2011Single-step solution processing of small-molecule organic semiconductor field-effect transistors at high yieldcitations
- 2011Spinodal Decomposition of Blends of Semiconducting and Ferroelectric Polymerscitations
- 2011Structural and Electrical Characterization of ZnO Films Grown by Spray Pyrolysis and Their Application in Thin-Film Transistorscitations
- 2011Wire-bar coating of semiconducting polythiophene / insulating polyethylene blend thin films for organic transistors.citations
Places of action
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article
The Importance of Quantifying the Composition of the Amorphous Intermixed Phase in Organic Solar Cells
Abstract
<jats:title>Abstract</jats:title><jats:p>The relation of phase morphology and solid‐state microstructure with organic photovoltaic (OPV) device performance has intensely been investigated over the last twenty years. While it has been established that a combination of donor:acceptor intermixing and presence of relatively phase‐pure donor and acceptor domains is needed to get an optimum compromise between charge generation and charge transport/charge extraction, a quantitative picture of how much intermixing is needed is still lacking. This is mainly due to the difficulty in quantitatively analyzing the intermixed phase, which generally is amorphous. Here, fast scanning calorimetry, which allows measurement of device‐relevant thin films (<200 nm thickness), is exploited to deduce the precise composition of the intermixed phase in bulk‐heterojunction structures. The power of fast scanning calorimetry is illustrated by considering two polymer:fullerene model systems. Somewhat surprisingly, it is found that a relatively small fraction (<15 wt%) of an acceptor in the intermixed amorphous phase leads to efficient charge generation. In contrast, charge transport can only be sustained in blends with a significant amount of the acceptor in the intermixed phase (in this case: ≈58 wt%). This example shows that fast scanning calorimetry is an important tool for establishing a complete compositional characterization of organic bulk heterojunctions. Hence, it will be critical in advancing quantitative morphology–function models that allow for the rational design of these devices, and in delivering insights in, for example, solar cell degradation mechanisms via phase separation, especially for more complex high‐performing systems such as nonfullerene acceptor:polymer bulk heterojunctions.</jats:p>