Researchers from Wuhan University of Technology and Central South University in China have developed an ultra-thin organic solar cell with a record-breaking power-per-weight ratio of 39 W/g. This innovative solar cell boasts a thickness of less than 1.5 micrometers and an impressive power conversion efficiency of 17%. 🔍 Key Innovations: - Bilayer Hole Transport Layer (HTL): The cell features a molybdenum trioxide (MoO3) interlayer between PEDOT (a blend of polymers) and indium tin oxide (ITO), enabling exceptional efficiency and stability. - Remarkable Durability: After 2000 hours of storage, the device retained 91.4% of its original efficiency. It also showed outstanding performance in mechanical tests, maintaining high efficiency after 1000 cycles of bending and compression stretching. Lead author Wenchao Huang highlighted that this achievement marks the highest power-per-weight ratio ever recorded for organic solar cells, setting a new standard for the industry. Organic solar cell with bilayer hole transport layer achieves 17% efficiency: https://lnkd.in/d8_YRbsE #RenewableEnergy #SolarInnovation #GreenRecruitment #SustainableFuture
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A team of researchers has achieved a breakthrough in semitransparent organic solar cells, fabricating a cell with an astounding bifaciality factor of 99.1% – the highest reported to date! ✨ Key Highlights: - Bifacial Excellence: The semitransparent organic cell exhibits nearly identical photovoltaic performance whether illuminated from the top or bottom side. - Efficiency in Low Light: It boasts excellent power conversion efficiency even under low light-intensity conditions or at low light incident angles. - Innovative Materials: Developed by Wuhan University of Technology and Central South University, the cell uses silver nanowires (AgNWs) for the top electrodes and a bilayer electron transport layer combining zinc oxide nanoparticles (ZnO) and PDINN, enhancing the interface between the active layer and the electrode. Professor Wenchao Huang, one of the lead authors, highlighted the significant potential of these cells due to their high transmittance and electrical conductivity. This innovation addresses previous challenges with AgNWs deposition that often damaged the underlying electron transport layer. This pioneering development marks a significant leap forward for semitransparent organic solar cells, opening new avenues for efficient and versatile solar energy solutions. 🔗 Read more: https://lnkd.in/dAMyNyyC #RenewableEnergy #SolarInnovation #OrganicSolarCells #SustainableTech #CleanEnergy #SolarPower #GreenTech #FutureEnergy
Semitransparent organic cell achieves bifaciality factor of 99.1%
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A research team from two Chinese universities claims to have fabricated an organic solar cell with the highest power per weight ratio to date. The device has a thickness of less than 1.5 micrometers. Researchers from Wuhan University of Science and Technology and Central South University, Changsha in China, have fabricated an ultra-thin organic solar cell with a bilayer hole transport layer (HTL) and a power-per-weight ratio of 39 W/g. Wenchao Huang, the research's lead author, told pv magazine that to the best of the group’s knowledge, it has the highest power per-weight ratio among organic solar cells. The device has a thickness of less than 1.5 micrometers. The scientists explained that bilayer HTL incorporates a molybdenum trioxide (MoO3) interlayer between PEDOT:PSS, a blend of polymers poly(3,4-ethylenedioxythiophene) and polystyrene sulfonate, and indium tin oxide (ITO), and said the introduction of this interlayer was the key factor allowing the cell to achieve a remarkable power conversion efficiency of 17%, as well as good storage stability and mechanical stability. After 2000 hours of storage, the device maintained 91.4% of its original efficiency. It also recorded an efficiency retention of 89.1% after 1000 cycles of bending at a bending radius of 1 m and an efficiency retention of 84.4% after 1000 cycles of a compression stretching test using a 30% compression rate.
Organic solar cell with bilayer hole transport layer achieves 17% efficiency
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Experienced IoT Consultant (SW, HW, Telecoms, Strategy), SensorNex Consulting. A guy with a real whiteboard, some ideas, and a pen... *** No LinkedIn marketing or sales solicitations please! ***
The Future of Solar Cells and More – Japanese Chemists Develop Glowing, Self-Healing Material. A research team at the RIKEN Center for Sustainable Resource Science (CSRS) has succeeded in developing a self-healing material that is also capable of emitting a high amount of fluorescence when absorbing light. Detailed in the Journal of the American Chemical Society, this development paves the path for inventing new materials like organic solar cells, offering enhanced durability compared to existing versions - https://lnkd.in/gmrd2miC
The Future of Solar Cells and More – Japanese Chemists Develop Glowing, Self-Healing Material
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Materials engineering expert | Freelancer | Consultant | Polymers, Ceramics, Adhesives | Plastic industry & Compounding processes | B.Sc and M.Des | International keynote speaker | AI enthusiast
Some #polymers and #innovation news not related to Gaza war 👇😉 This is what gives me energy everyday #materialsscience ❣️ Covalent Organic framework films: 🔥What makes these structures so special?? "Is that they are polymers but they arrange themselves in an ordered, repeating structure that makes it a crystal" Rice University materials scientists developed a fast, low-cost, scalable method to make covalent organic frameworks (COFs), a class of crystalline polymers whose tunable molecular structure, large surface area and porosity could be useful in energy applications, semiconductor devices, sensors, filtration systems and drug delivery. "These structures look a bit like chicken wire—they're hexagonal lattices that repeat themselves on a two-dimensional plane, and then they stack on top of themselves, and that's how you get a layered 2D material." "A lot of times when you make COFs through solution processing, there's no alignment on the film," Ajnsztajn said. "This synthesis technique allows us to control the sheet orientation, ensuring that pores are aligned, which is what you want if you're creating a membrane." The ability to control pore size is useful in separators, where COFs could serve as membranes for desalination and potentially help replace energy intensive processes like distillation. In electronics, COFs could be used as battery separators and organic transistors. "COFs have the potential to be useful in a variety of catalytic processes ⎯ you might, for instance, use COFs to break down carbon dioxide into useful chemicals like ethylene and formic acid," Daum said. Continue to the article 👇👇 Interesting?!? Follow me...Usually I share this kind of content 👩🔬 https://lnkd.in/dHC8-UTf
Researchers use vapor deposition to make covalent organic framework films
phys.org
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“Vitrification-enabled enhancement of proton conductivity in hydrogen-bonded organic frameworks” Feng-Fan Yang, Xiao-Lu Wang, Jiayue Tian, Yang Yin & Linfeng Liang Show 10 May 2024 Nature Communications volume 15, Article number: 3930 (2024) “Abstract” “Hydrogen-bonded organic frameworks (HOFs) are versatile materials with potential applications in proton conduction.” “Traditional approaches involve incorporating humidity control to address grain boundary challenges for proton conduction. This study finds vitrification as an alternative strategy to eliminate grain boundary effect in HOFs by rapidly melt quenching the kinetically stable HOF-SXU-8 to glassy state HOF-g.” “Notably, a remarkable enhancement in proton conductivity without humidity was achieved after vitrification, from 1.31 × 10−7 S cm−1 to 5.62× 10−2 S cm−1 at 100 °C. Long term stability test showed negligible performance degradation, and even at 30 °C, the proton conductivity remained at high level of 1.2 × 10−2 S cm−1. “ “Molecule dynamics (MD) simulations and X-ray total scattering experiments reveal the HOF-g system is consisted of three kinds of clusters, i.e., 1,5-Naphthalenedisulfonic acid (1,5-NSA) anion clusters, N,N-dimethylformamide (DMF) molecule clusters, and H+-H2O clusters.” “In which, the H+ plays an important role to bridge these clusters and the high conductivity is mainly related to the H+ on H3O+. These findings provide valuable insights for optimizing HOFs, enabling efficient proton conduction, and advancing energy conversion and storage devices.” https://lnkd.in/eGA_-GpR Source - original post Read all my posts #MariusPreston
Vitrification-enabled enhancement of proton conductivity in hydrogen-bonded organic frameworks - Nature Communications
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https://lnkd.in/dxvVrNn5 Organic solar cells (OSCs)—promising alternatives to traditional inorganic solar cells—have many features that make them key players in a greener future. One of these features is tunable chemistry, which allows scientists to precisely adjust or modify the properties of chemical systems to achieve desired outcomes. Now, researchers from Japan have tuned them to increase power conversion efficiency.
Molecular level changes translate to big efficiency gains for organic solar cells
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Light, water, action 📢 Exciting News! 📢 My latest research article has been published in Nature Catalysis! 🎉 📚 Title: Linkage-engineered donor–acceptor covalent organic frameworks for optimal photosynthesis of hydrogen peroxide from water and air 💭 Industrially, hydrogen peroxide has been produced via the energy-intensive anthraquinone process, using pressurized hydrogen and oxygen gas as chemical feedstock, employing palladium catalysts and toxic solvents. In our work, we designed a metal-free covalent organic framework photocatalyst capable of using just water, air and light to produce hydrogen peroxide under room conditions. In fact, it stands to be one of the best metal-free photocatalysts reported to date in terms of performance and efficiency. 🔍 DOI: 10.1038/s41929-023-01102-3 🔗 Access the article here: https://lnkd.in/e7DtYTcK Don't miss out on this insightful read! Feel free to share and spread the word! 🌟
Linkage-engineered donor–acceptor covalent organic frameworks for optimal photosynthesis of hydrogen peroxide from water and air - Nature Catalysis
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Quino Energy got its start in the labs of Profs. Michael Aziz and Roy Gordon at Harvard University. A pair of high-profile papers in Nature Portfolio and Science Magazine cemented the team as the pioneers of organic flow batteries. The first publication was a demonstration of a high-power quinone-bromine flow battery in Nature, which proved that quinones were a viable choice for high-performance, low cost flow batteries. Read the paper for yourself below (free preprint)
A metal-free organic–inorganic aqueous flow battery - Nature
nature.com
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Exciting opportunity for researchers in organic synthesis and catalysis! 💻🧪 The journal Sustainability & Circularity NOW, published by Thieme, is calling for submissions for a special issue on "Sustainable solvents for synthesis and catalysis". This special issue aims to highlight the latest advancements and innovative approaches related to the use of sustainable solvents for organic synthesis, including: Water, ionic liquids, supercritical fluids, deep eutectic solvents, and other green solvents derived from biomass Solvent-free and solvent-minimized reactions New solvent systems for specific organic transformations Solvents for catalysis and reaction optimization Application of sustainable solvents in pharmaceutical synthesis Advances in understanding solvent-solute interactions and reaction mechanisms in unconventional solvents The guest editors for this issue are Dr. Anant Kapdi and Dr. Ettigounder (Samy) Ponnusamy - both renowned experts in the field of sustainable chemistry. The submission deadline is October 31, 2024, and the article processing charge is waived until September 30, 2024. If you're working on exciting research in this area, I encourage you to consider submitting your work to this special issue. It's a great opportunity to showcase your findings and contribute to the growing field of sustainable solvents. Let me know if you have any questions! I'm happy to provide more information. #SustainableChemistry #OrganicSynthesis #Catalysis #SustainableSolvents #Thieme #SustainabilityAndCircularityNOW https://lnkd.in/g2ZJePax
Upcoming Special Topics - Thieme Chemistry - Georg Thieme Verlag
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Researchers at the National University of Singapore (NUS) have developed a microporous covalent organic framework with dense donor–acceptor lattices and engineered linkages for the efficient and clean production of hydrogen peroxide (H2O2) through the photosynthesis process with water and air. Traditional industrial production of H2O2 via the anthraquinone process using hydrogen and oxygen is highly energy-intensive. This approach employs toxic solvents and expensive noble-metal catalysts and generates substantial waste from side reactions. In contrast, photocatalytic production of H2O2 from oxygen and water offers an energy-efficient, mild, and clean route. Most importantly, it addresses the common drawbacks of existing photocatalytic systems, such as low activity, heavy use of additional alcohol sacrificial donors, and the necessity for pure oxygen gas input. https://lnkd.in/gn9m858y
Linkage-engineered donor–acceptor covalent organic frameworks for optimal photosynthesis of hydrogen peroxide from water and air - Nature Catalysis
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