A5069003229- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Organic and Molecular Conductors Research
- Luminescence and Fluorescent Materials
- Chalcogenide Semiconductor Thin Films
- Carbon Dioxide Capture Technologies
- CO2 Sequestration and Geologic Interactions
- Conducting polymers and applications
- Luminescence Properties of Advanced Materials
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Catalytic C–H Functionalization Methods
- Synthesis and properties of polymers
- Radiation Detection and Scintillator Technologies
- Atmospheric and Environmental Gas Dynamics
- Image and Video Quality Assessment
- Silicone and Siloxane Chemistry
- Laser Design and Applications
- Chemical Synthesis and Reactions
- Photoacoustic and Ultrasonic Imaging
Carbon180
2023
Rocky Mountain Institute
2023
Heriot-Watt University
2023
Swiss Federal Laboratories for Materials Science and Technology
2018-2022
École Polytechnique Fédérale de Lausanne
2018-2022
University of Freiburg
2016-2017
University of Fribourg
2017
A roadmap that delineates the major hurdles and essential RD&D actions to enable large-scale DACCS deployment.
The photophysical properties and solar cell performance of the classical donor–acceptor copolymer PCDTBT (poly( N ‐9′‐heptadecanyl‐2,7‐carbazole‐ alt ‐5,5‐(4′,7′‐di‐2‐thienyl‐2′,1′,3′‐benzothiadiazole))) in relation to unintentionally formed main chain defects are investigated. Carbazole–carbazole homocouplings (Cbz hc) found significant extent made with a variety Suzuki polycondensation conditions. Cbz hc vary between 0 8 mol% depending on synthetic protocol used, quantified by detailed...
Efficient light detection in the near-infrared (NIR) wavelength region is central to emerging applications such as medical imaging and machine vision. An organic upconverter (OUC) consists of a NIR-sensitive photodetector (OPD) an visible light-emitting diode (OLED), connected series. The device converts NIR directly light, allowing scene visible. Here, we present OUC composed NIR-selective squaraine dye-based OPD fluorescent OLED. has peak sensitivity at 980 nm internal photon-to-current...
The possibility for unselective C–H activation of a thiophene-based, donor–acceptor–donor monomer during direct arylation polycondensation is investigated.
Strongly coupled dye molecules are known to produce narrowband absorption in a large spectral range. Here we exploit this feature achieve organic photodetectors with ultra-narrow full-width at half-maximum response low bias voltage.
Abstract Organic upconversion devices (OUCs) consist of an organic infrared photodetector and visible light‐emitting diode (OLED), connected in series. OUCs convert photons from the to are use applications such as process control or imaging. Many require a fast OUC response speed, namely ability accurately detect rapidly changing signal. Here, high image‐contrast, narrowband reported that near‐infrared (NIR) light at 980 976 nm with full‐width half maximum 130 into light. Transient...
Imaging in the near-infrared (NIR) is getting increasingly important for applications such as machine vision or medical imaging. NIR-to-visible optical upconverters consist of a monolithic stack NIR photodetector and visible light-emitting unit. Such devices convert light directly to allow capturing image with an ordinary camera. Here, five-layer organic solution-processed (OUCs) are reported which squaraine dye fluorescent poly(para-phenylene vinylene) copolymer (super yellow)-based diode...
Shortwave infrared (SWIR) optical sensing and imaging are essential to an increasing number of next-generation applications in communications, process control or medical imaging. An all-organic SWIR upconversion device (OUC) consists organic sensitive photodetector (PD) light-emitting diode (OLED), connected series. OUCs directly convert visible photons, which potentially provides a low-cost alternative the current inorganic compound-based technology. For OUC applications, only few materials...
The efficiency of ternary organic solar cells relies on the spontaneous establishment a nanostructured network donor and acceptor phases during film formation. A fundamental understanding phase composition arrangement correlations to photovoltaic device parameters is utmost relevance for both science technology. We demonstrate general approach cell behavior from simple thermodynamic principles. For two blend systems we construct model diagrams. Details EQE can be understood behavior. Our...
Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the its subsequent long-term storage. DACCS is at an early stage technical development currently faces variety challenges, including high cost energy requirements. Building on publicly available data, this paper provides: (i) overview classification systems, (ii) harmonization economic performance direct technologies, (iii) comprehensive list technical- infrastructure-based obstacles to...
Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the its subsequent long-term storage. DACCS is at an early stage technical development currently faces variety challenges, including high cost energy requirements. Building on publicly available data, this paper provides: (i) overview classification systems, (ii) harmonization economic performance direct technologies, (iii) comprehensive list technical- infrastructure-based obstacles to...
Unintentionally formed carbazole homocouplings occur frequently in the photovoltaic material PCDTBT when made by Suzuki polycondensation resulting significantly lower power conversion efficiency of PCDTBT/fullerene solar cells. A likely loss mechanism that leads to reduced short circuit currents is exciton localization next homocoupling defect. This reported Michael Sommer and co-workers article number 1601232.
Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the its subsequent long-term storage. DACCS is at an early stage technical development currently faces variety challenges, including high cost energy requirements. Building on publicly available data, this paper provides: (i) overview classification systems, (ii) harmonization economic performance direct technologies, (iii) comprehensive list technical- infrastructure-based obstacles to...