A5040504463- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Analytical Chemistry and Sensors
- Advanced Memory and Neural Computing
- Advanced Photocatalysis Techniques
- Graphene research and applications
- 2D Materials and Applications
- Fullerene Chemistry and Applications
- Magnetic and transport properties of perovskites and related materials
- Gas Sensing Nanomaterials and Sensors
- Photopolymerization techniques and applications
- Phase-change materials and chalcogenides
- MXene and MAX Phase Materials
- Molecular Junctions and Nanostructures
- Physics of Superconductivity and Magnetism
- Thin-Film Transistor Technologies
- Electrochemical Analysis and Applications
- Organic Light-Emitting Diodes Research
- Ga2O3 and related materials
- Semiconductor materials and interfaces
- Magnetic properties of thin films
- Advanced Fluorescence Microscopy Techniques
- Synthesis and properties of polymers
- CO2 Reduction Techniques and Catalysts
- Chalcogenide Semiconductor Thin Films
King Abdullah University of Science and Technology
2022-2025
King Saud University
2022-2025
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2024
CEA Paris-Saclay
2024
Abstract Conjugated polymer films, which can conduct both ionic and electronic charges, are central to building soft sensors actuators. Despite the possible interplay between light absorption mixed conductivity of these materials in aqueous biological media, no single film has been utilized create a solar-switchable organic bioelectronic circuit that relies on fully reversible redox reaction-free potentiometric photodetection current modulation. Here we demonstrate by an electron...
An n-type organic photoelectrochemical transistor produces large and reversible current changes in response to light-intensity variations aqueous electrolytes. A long exciton lifetime of the gate ensures a high photovoltage response.
Non-fullerene acceptor (NFA)-based ternary bulk heterojunction solar cells (TSC) are the most efficient organic (OSCs) today due to their broader absorption and quantum efficiencies (QE) often surpassing those of corresponding binary blends. We study how energetics driving charge transfer at electron donor:electron (D/A) interfaces impact QE in blends PBDB-T-2F donor with several pairs lower bandgap NFAs. As blends, ionization energy offset between ({\Delta}IE) controls maximizes for...
Two-dimensional transition metal dichalcogenides (2D TMDCs) can be combined with organic semiconductors to form hybrid van der Waals heterostructures.
Abstract Long exciton diffusion length ( L D ) is key to maximizing excitation harvesting in organic solar cells, but contradicting values are reported for non‐fullerene acceptors (NFA). To understand the factors enabling large , experimental observation of decay by transient absorption spectroscopy (TAS) combined with microscopic Kinetic Monte Carlo (KMC) simulations on 4 ITIC derivatives. Exciton decays fitted considering singlet exciton‐singlet annihilation (SSA) and intrinsic exciton's...
We present an experimental proof-of-concept study of organic semiconductor nanoparticles (NPs) for visible-light-driven carbon dioxide (CO 2 ) conversion.
Mitigating Triplet Loss in 2D-WSe2/Non-fullerene Heterostructures Using Halogenated AcceptorsSreelakshmi Chandrabose a, Ana M Valencia Nisreen Alshehri Frederic Laquai Caterina Cocchi Dieter Neher aa CEA-Paris Saclay, CEA-Saclay, Gif-sur-Yvette cedex, 91191, France, Paris-Saclay, FranceInternational Conference on Hybrid and Organic PhotovoltaicsProceedings of International Photovoltaics (HOPV24)València, Spain, 2024 May 12th - 15thOrganizer: Bruno EhrlerOral, Sreelakshmi Chandrabose,...
Abstract Rapid, nondestructive characterization techniques for evaluating the degree of crystallinity and phase segregation organic semiconductor blend thin films are highly desired in‐line, automated optoelectronic device fabrication facilities. Here, it is demonstrated that reflection polarized optical microscopy (POM), a simple technique capable imaging local anisotropy materials, determining relative polymer:fullerene blends. While previous works on POM semiconductors have largely...
Non-fullerene acceptor (NFA)-based ternary bulk heterojunction solar cells (TSC) are the most efficient organic (OSCs) today due to their broader absorption and quantum efficiencies (QE) often surpassing those of corresponding binary blends. We study how energetics driving charge transfer at electron donor:electron (D/A) interfaces impact QE in blends PBDB-T-2F donor with several pairs lower bandgap NFAs. As blends, ionization energy offset between (ΔIE) controls maximizes for ΔIE > 0.5...
Conjugated polymer films that can conduct ionic and electronic charges are central to building soft sensors actuators. Despite the possible interplay between light absorption mixed conductivity of these materials in aqueous biological media, no film has ever been used realize a solar-switchable organic bioelectronic circuit relying on fully reversible, redox reaction-free mechanism. Here we show absorbed by an electron cation-transporting reversibly modulates its electrochemical potential...
Unleashing the Potential of Organic Semiconductor Nanoparticles towards CO2 PhotoreductionMariia Ferree a, Jan Kosco Catherine De Castro Nisreen Alshehri Lingyun Zhao b, Iain McCulloch c, Martin Heeney Frédéric Laquai aa King Abdullah University Science & Technology (KAUST), KAUST Solar Center (KSC), Physical and Engineering Division (PSE), Thuwal, 23955-6900, Kingdom Saudi Arabiab Core Labs, 23955-6900 Arabiac Department Chemistry, Chemistry Research Laboratory, Oxford, OX1 3TAProceedings...
SummaryNon-fullerene acceptor (NFA)-based ternary bulk heterojunction solar cells (TSC) are the most efficient organic (OSCs) today due to their broader absorption, and quantum efficiencies (QE) often surpassing those of corresponding binary blends. We study how energetics driving charge transfer at electron donor:electron (D/A) interfaces impact QE in blends a donor (PBDB-T-2F) with several pairs lower bandgap NFAs. Similar blends, ionization energy offset between (ΔIE) controls QE,...