| 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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Gasparini, Nicola
Imperial College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Dark Current in Broadband Perovskite–Organic Heterojunction Photodetectors Controlled by Interfacial Energy Band Offsetcitations
- 2024A novel selenophene based non-fullerene acceptor for near-infrared organic photodetectors with ultra-low dark currentcitations
- 2023Semitransparent Organic Photovoltaics Utilizing Intrinsic Charge Generation in Non‐Fullerene Acceptorscitations
- 2023Enhanced sub-1 eV detection in organic photodetectors through tuning polymer energetics and microstructurecitations
- 2023Neuromorphic computing based on halide perovskitescitations
- 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
- 2022Correlating Acceptor Structure and Blend Nanostructure with the Photostability of Nonfullerene Organic Solar Cellscitations
- 2022Synthetic Nuances to Maximize n-Type Organic Electrochemical Transistor and Thermoelectric Performance in Fused Lactam Polymers.citations
- 2022Overcoming nanoscale inhomogeneities in thin-film perovskites via exceptional post-annealing grain growth for enhanced photodetectioncitations
- 2021Interface Molecular engineering for laminated monolithic perovskite/silicon tandem solar cells with 80.4% fill factorcitations
- 2021Ternary organic photodetectors based on pseudo-binaries nonfullerene-based acceptorscitations
- 2020Side Chain Redistribution as a Strategy to Boost Organic Electrochemical Transistor Performance and Stabilitycitations
- 2020Side Chain Redistribution as a Strategy to Boost Organic Electrochemical Transistor Performance and Stability.citations
- 2020Unraveling the Complex Nanomorphology of Ternary Organic Solar Cells with Multimodal Analytical Transmission Electron Microscopycitations
- 2019Favorable Mixing Thermodynamics in Ternary Polymer Blends for Realizing High Efficiency Plastic Solar Cellscitations
- 2017Indacenodithienothiophene-Based Ternary Organic Solar Cellscitations
- 2017Controlling charge carrier recombination in ternary organic solar cells ; Unterdrückung von Ladungsträgerrekombination in ternären organischen Solarzellen
- 2016A Series of Pyrene-Substituted Silicon Phthalocyanines as Near-IR Sensitizers in Organic Ternary Solar Cellscitations
- 2015Integrated Molecular, Morphological and Interfacial Engineering towards Highly Efficient and Stable Solution-processed Small Molecule Organic Solar Cellscitations
Places of action
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article
Enhanced sub-1 eV detection in organic photodetectors through tuning polymer energetics and microstructure
Abstract
One of the key challenges facing organic photodiodes (OPDs) is increasing the detection into the infrared region. Organic semiconductor polymers provide a platform for tuning the bandgap and optoelectronic response to go beyond the traditional 1000-nanometer benchmark. In this work, we present a near-infrared (NIR) polymer with absorption up to 1500 nanometers. The polymer-based OPD delivers a high specific detectivity<jats:italic>D<jats:sup>*</jats:sup></jats:italic>of 1.03 × 10<jats:sup>10</jats:sup>Jones (−2 volts) at 1200 nanometers and a dark current<jats:italic>J</jats:italic><jats:sub>d</jats:sub>of just 2.3 × 10<jats:sup>−6</jats:sup>ampere per square centimeter at −2 volts. We demonstrate a strong improvement of all OPD metrics in the NIR region compared to previously reported NIR OPD due to the enhanced crystallinity and optimized energy alignment, which leads to reduced charge recombination. The high<jats:italic>D<jats:sup>*</jats:sup></jats:italic>value in the 1100-to-1300-nanometer region is particularly promising for biosensing applications. We demonstrate the OPD as a pulse oximeter under NIR illumination, delivering heart rate and blood oxygen saturation readings in real time without signal amplification.