| 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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Ackermann, Jörg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Ternary Polymer Solar Cells: Impact of Non-Fullerene Acceptors on Optical and Morphological Propertiescitations
- 2023Star-shape non-fullerene acceptor featuring an aza-triangulene core for organic solar cellscitations
- 2023Star-shape non-fullerene acceptor featuring an aza-triangulene core for organic solar cellscitations
- 2023Towards efficient NFA-based selective near-infrared organic photodetectors: impact of thermal annealing of polymer blendscitations
- 2022Improved ultraviolet stability of fullerene-based organic solar cells through light-induced enlargement and crystallization of fullerene domainscitations
- 2022Synthesis and Electron Accepting Properties of Two Di(benz[f]indenone)-Fused Tetraazaanthracene Isomerscitations
- 2022High-Efficiency Digital Inkjet-Printed Non-Fullerene Polymer Blends Using Non-Halogenated Solventscitations
- 2020Robust transparent conducting electrode based on silver nanowire coating on polyelectrolytes multilayerscitations
- 2019A new antimony-based organic-inorganic hybrid material as electron extraction layer for efficient and stable polymer solar cellscitations
- 2019A new antimony-based organic-inorganic hybrid material as electron extraction layer for efficient and stable polymer solar cellscitations
- 2017P-type semiconductor surfactant modified zinc oxide nanorods for hybrid bulk heterojunction solar cellscitations
- 2017Toward High-Temperature Stability of PTB7-Based Bulk Heterojunction Solar Cells: Impact of Fullerene Size and Solvent Additivecitations
- 2017Toward High-Temperature Stability of PTB7-Based Bulk Heterojunction Solar Cells: Impact of Fullerene Size and Solvent Additivecitations
- 2016Effect of ZnO nanoparticles on the photochemical and electronic stability of P3HT used in polymer solar cellscitations
- 2016Effect of ZnO nanoparticles on the photochemical and electronic stability of P3HT used in polymer solar cellscitations
- 2016Insight about electrical properties of low-temperature solution-processed Al-doped ZnO nanoparticle based layers for TFT applicationscitations
- 2016Insight about electrical properties of low-temperature solution-processed Al-doped ZnO nanoparticle based layers for TFT applicationscitations
- 2016Ligand-Free Synthesis of Aluminum-Doped Zinc Oxide Nanocrystals and their Use as Optical Spacers in Color-Tuned Highly Efficient Organic Solar Cellscitations
- 2016Ligand-Free Synthesis of Aluminum-Doped Zinc Oxide Nanocrystals and their Use as Optical Spacers in Color-Tuned Highly Efficient Organic Solar Cellscitations
- 2016Ligand-free synthesis of aluminum-doped zinc oxide nanocrystals and their use as optical spacers in color-tuned highly efficient organic solar cellscitations
- 2013A star-shaped molecule as hole transporting material in solution-processed thin-film transistorscitations
- 2012A New Active Organic Component for Flexible Ammonia Gas Sensorscitations
Places of action
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article
Towards efficient NFA-based selective near-infrared organic photodetectors: impact of thermal annealing of polymer blends
Abstract
International audience ; For wavelength-selective photodetection or color discrimination, organic photodetectors (OPDs) can provide significant advantages as solution processability, chemical versatility and functionality. To eliminate the need for commonly used filters, the development of a narrowing approach that simultaneously achieves a selective detection range of less than 50 nm bandwidth and a spectral response greater than 20%, especially for wavelengths designed in the near-infrared, remains a real challenge. Herein, we demonstrate a bulk-heterojunction (BHJ) organic blend exhibiting a filter-free visible-blind near-infrared light responsive characteristic. An indacenodithienothiophene-based non-fullerene acceptor (NFA) of the ITIC family incorporating fluorine atoms, namely ITIC-4F, is mixed with PM6 donor polymer to form ultra-thick active layers in OPDs. A systematic comparison between inverted versus normal architectures was performed using different pairs of hole and electron extraction layer materials. Depending on the thermal annealing temperature of PM6:ITIC-4F blends (from 100 °C up to 200 °C), distinct light responses were observed. While the spectral response of normal structures changes from narrow to broadband with the temperature, inverted structures improve their spectral tuning. A detailed analysis of structure and morphology of blends upon thermal annealing was performed by atomic force microscopy (AFM), contact water angle (CWA) measurement, Raman analysis and 2D grazing-incidence X-ray diffractometry (2D-GIXRD). The transport properties of electrons and holes were further investigated in blends following a Space-Charge-Limited current (SCLC) protocol. We found a marked misbalance between hole and electron mobility values at 200 °C together with highly crystalline films. As a result, the optimized OPD exhibits a high-selective spectral response following the charge collection narrowing (CCN) principle with an external narrowband quantum efficiency of 24.5% and a bandwidth of 42 nm ...