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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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Bristow, Helen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2024Moisture‐Resilient Perovskite Solar Cells for Enhanced Stabilitycitations
- 2023Semitransparent Organic Photovoltaics Utilizing Intrinsic Charge Generation in Non‐Fullerene Acceptorscitations
- 2023Efficient and reliable encapsulation for perovskite/silicon tandem solar modulescitations
- 2022Infrared Organic Photodetectors Employing Ultralow Bandgap Polymer and Non‐Fullerene Acceptors for Biometric Monitoringcitations
- 2022Synthetic nuances to maximize n-type organic electrochemical transistor and thermoelectric performance in fused lactam polymerscitations
- 2022Synthetic Nuances to Maximize n-Type Organic Electrochemical Transistor and Thermoelectric Performance in Fused Lactam Polymers.citations
- 2021Ternary organic photodetectors based on pseudo-binaries nonfullerene-based acceptorscitations
- 2020The effect of aromatic ring size in electron deficient semiconducting polymers for n-type organic thermoelectricscitations
Places of action
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article
Infrared Organic Photodetectors Employing Ultralow Bandgap Polymer and Non‐Fullerene Acceptors for Biometric Monitoring
Abstract
<jats:title>Abstract</jats:title><jats:p>Recent efforts in the field of organic photodetectors (OPD) have been focused on extending broadband detection into the near‐infrared (NIR) region. Here, two blends of an ultralow bandgap push–pull polymer TQ‐T combined with state‐of‐the‐art non‐fullerene acceptors, IEICO‐4F and Y6, are compared to obtain OPDs for sensing in the NIR beyond 1100 nm, which is the cut off for benchmark Si photodiodes. It is observed that the TQ‐T:IEICO‐4F device has a superior IR responsivity (0.03 AW<jats:sup>‐1</jats:sup> at 1200 nm and −2 V bias) and can detect infrared light up to 1800 nm, while the TQ‐T:Y6 blend shows a lower responsivity of 0.01 AW<jats:sup>‐1</jats:sup>. Device physics analyses are tied with spectroscopic and morphological studies to link the superior performance of TQ‐T:IEICO‐4F OPD to its faster charge separation as well as more favorable donor–acceptor domains mixing. In the polymer blend with Y6, the formation of large agglomerates that exceed the exciton diffusion length, which leads to high charge recombination, is observed. An application of these devices as biometric sensors for real‐time heart rate monitoring via photoplethysmography, utilizing infrared light, is demonstrated.</jats:p>