Electrosciences Ltd’s Post

These Chinese researchers report fatigue-free ferroelectric material that could be a game changer same as spintronics. Ferroelectric materials have switchable spontaneous polarization that can be reversed by an external electric field, which has been widely applied to non-volatile memory, sensing, and energy conversion devices. These researchers developed a fatigue-free ferroelectric system based on sliding ferroelectricity. A bilayer 3R-MoS2 dual-gate device was fabricated using the chemical vapor transport method. After 106 switching cycles with different pulse widths ranging from 1 ms to 100 ms, the ferroelectric polarization dipoles showed no loss, indicating that the device still retained its memory performance. Gemini says the following: Fatigue has restricted the use of ferroelectrics in certain applications. Fatigue-free materials could open doors for applications that require frequent switching or high endurance, such as: High-density non-volatile memory: Data storage devices with significantly higher density compared to current options. Faster and more efficient ferroelectric random-access memory (FRAM): Memory that retains data even when powered off, potentially offering faster read/write speeds than traditional flash memory. Highly durable sensors: Sensors that rely on the change in polarization of a ferroelectric material, potentially leading to more sensitive and reliable sensors. Energy harvesting devices: Devices that convert mechanical energy into electrical energy, potentially with improved efficiency due to fatigue-free operation. #climatechange #aiml #newcomputingarchitectures

#Energy | 𝗡𝗮𝗻𝗼𝗱𝗲𝘃𝗶𝗰𝗲𝘀 𝗖𝗮𝗻 𝗣𝗿𝗼𝗱𝘂𝗰𝗲 𝗘𝗻𝗲𝗿𝗴𝘆 𝗳𝗿𝗼𝗺 𝗘𝘃𝗮𝗽𝗼𝗿𝗮𝘁𝗶𝗻𝗴 𝗪𝗮𝘁𝗲𝗿 | EPFL researchers Prof. Dr. Giulia Tagliabue and Tarique Awar have made a fascinating advancement in energy production using nanodevices, changing how we think about the use of tap and seawater. By mastering the technique of nanosphere colloidal lithography, the researchers were able to create a hexagonal network of silicon nanopillars, which allowed the generation of current and voltages simply through the evaporation of fluid samples. The significance of this innovative approach hold enormous potential in waste-heat recovery, renewable energy generation, and the powering of sensors, thus revolutionizing the use of water evaporation for energy. 👉 Learn more >> https://lnkd.in/gb7-4b8Z 👉 Original publication >> https://lnkd.in/gBMgBbHy 🇨🇭 Follow #ScienceSwitzerland for the latest news, trends and developments in Swiss science, technology, education, and innovation >> www.swissinnovation.org Follow us >> Science-Switzerland #Science | #Education | #Research | #Innovation

📢Just Published! New research paper @ "Photonics Lab, Depart of ECE, National Institute of Technology Karnataka, India''. Shweta Mehta, Nakul Nayak B V and Mandeep Singh, "Engineering Porous Silicon-Based Plasmonic Microdisk Resonator for Highly Sensitive Methanol Sensing," IEEE Sensors Journal, vol. 24, no. 8, pp. 12304-12311, April, 2024, doi: 10.1109/JSEN.2024.3373907. keywords: {Sensors;#Refractiveindex; #Methanol; #Plasmons; #resonators; #Silicon;Sensitivity;microdisk resonator;optical sensor; #porousSilicon (p-Si); #siliconPhotonics}, Thanks to the "Department of Biotechnology (DBT), New Delhi" for funding this research work. IEEE Photonics Society IEEE Sensors Journal #photonics #Sensor

Scientists Oak Ridge National Laboratory have made a breakthrough in understanding atomic-scale heat motion, paving the way for advancements in #solidstatecooling technology. This innovative cooling method could revolutionize how we chill everything from food to electronics, offering a more environmentally friendly alternative to traditional refrigeration systems. The research team examined a nickel-cobalt-manganese-indium magnetic shape-memory alloy, a promising material for solid-state cooling applications. Using neutron-scattering instruments, they discovered that localized hybrid magnon-phonon modes in the material significantly enhance its heat storage and release capabilities. This finding reveals a path to develop better materials for solid-state cooling, supporting the societal need for cleaner, more efficient cooling solutions. The discovery could lead to the creation of quiet, compact, and lightweight cooling systems with precise temperature control, without the use of traditional refrigerants or moving parts. https://lnkd.in/gWvxTjj5

Researchers at the Institute of Materials Research and Engineering (IMRE) have found a viable, environment-friendly alternative to sensors commonly used for structural health monitoring (SHM) underwater 🌊 Using fabricated films made from poly(L-lactic acid) (PLLA) fibres, a team led by Senior Principal Scientist Kui Yao conducted extensive testing in air and underwater environments. “Our polymer transducers made from aligned PLLA fibres are highly flexible and can be implemented as conformal low-profile ultrasonic generators and detectors over curved surfaces,” explained Yao, who is the corresponding author of the study. Innovations in SHM technologies aid in ensuring the durability and safety of vital underwater infrastructure, such as telecommunication networks and subway lines. To learn more, check out the #ThrowbackThursday feature linked below 👇 --- #scicomm #science #technology #STEM #research #innovation #ASTAR #IMRE #MTC #sensors #structuralhealth #structuralintegrity #piezoelectronics #throwback

Novel flexible perovskite/silicon tandem solar cell achieves record efficiency Despite the remarkable progress achieved in rigid perovskite/silicon tandem solar cells, with reported efficiencies reaching up to 33.9%, the utilization of flexible perovskite/silicon tandem solar cells has remained elusive. This challenge stems from the difficulty of enhancing light absorption in ultrathin silicon bottom cells while preserving their mechanical flexibility. In their pioneering study, a research team successfully demonstrated the first flexible perovskite/silicon tandem solar cell based on ultrathin silicon, with a thickness of approximately 30 µm. The research is published in the journal Science Bulletin. By reducing wafer thicknesses and adjusting the feature sizes of light-trapping textures, they significantly improved the flexibility of the silicon substrate without compromising light utilization. Additionally, by capping the perovskite top cells, they enhanced the mechanical durability of the device, thus addressing concerns related to fractures in the silicon surface. The resulting flexible perovskite/silicon tandem solar cell achieved a certified stabilized efficiency of 22.8%, setting a record efficiency for flexible solar cells. Furthermore, with an exceptional power-to-weight ratio of 3.12 W g−1, the device promises high performance in a lightweight package. Remarkably, the flexible tandems exhibited outstanding bending durability, maintaining 98.2% of their initial performance even after undergoing 3,000 bending cycles at a radius of only 1 cm. ---In conclusion, the #breakthrough achieved by Professor #Jichun #Ye and his team represents a #significant #advancement in the development of #flexible #photovoltaic technology. Their research not only demonstrates the feasibility of flexible perovskite/silicon tandem solar cells but also opens up new avenues for the practical application of high-efficiency, lightweight solar cells in various fields.--- This study is led by Dr. #Xinlong #Wang, Dr. #Jingming #Zheng, Dr. #Zhiqin #Ying, Prof. #Xi #Yang, and Prof. #Ye from the Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences. by Science China Press https://lnkd.in/dbEK9-VT

Using the AcXO3 (X = Al, Ga) perovskites in #power #energy Already present in there more leaves, appliances thatuse us, the electronics is liked besides never giving in our companies. The environmental pollution, global energy, brings her anymore researcher shares turned itself towards moreover innovative methods. How can we use the materials of microeclectronics in more operative way ? "Incorporation of actinide elements with perovskites structure could prove to be materials for technological application" This material, if it's rally forms, she could contribute news debouched, by a little more than share of market in some parts of the globe. The same manner that #water is the life, the #power contribute to the #development. You will find to be few methods of polarization this matter in the thermoelectric potential in the link: https://lnkd.in/ek-47iTZ #climatechange #electronic #Optoelectronics #Thermoelectric #nanomaterials #biostructures #recycling

Organic Electrochemical Transistors are versatile sensors that can detect e.g. very low concentrations of hydrogen. They could be potentially used in biosensors, bioelectronics, and large-scale, affordable electronics. An article by MAPEX member Björn Lüssem and his colleagues in the journal Advanced Functional Materials takes a closer look at the sensor response.   “Often, the well-known gradual channel approximation is used to discuss their performance”, explains Lüssem, professor at the Institute for Microsensors, -actuators and -systems (IMSAS) at the Universität Bremen, “In this paper, we show that this approximation is not always applicable. A more detailed modeling effort is needed to describe the full sensor response”.   Paper in full length: https://lnkd.in/ePFgRETg More MAPEX Research Highlights: https://t.ly/-3xeI   #MaterialScience #OECT #FunctionalMaterials #Bioelectronics #MAPEXResearchHighlights   📸 Sample during electrical characterization © Björn Lüssem

Annealing Methods are Key to Unlocking Nanocrystalline Core Performance New research by Taylan Günes highlights the impact of annealing methods on nanocrystalline core performance. Choosing the right cooling gas, temperature profile and dwell time can significantly enhance magnetic properties! At Magnetec Group, we leverage this knowledge to manufacture high-quality cores optimized for diverse applications. Our expertise in annealing processes and precise process control ensures consistent and reliable performance. ➡️Learn more about how we can help you harness the full potential of nanocrystalline technology: Magnetec Group #powerelectronics #emc #EMI #nanocrystalline

Scientists discovered a revolutionary material that could power your devices using your body's movement. 🏃 Researchers at Rensselaer Polytechnic Institute have uncovered piezoelectricity in chalcogenide perovskites, a lead-free and environmentally friendly material family. This discovery could lead to significant advancements in #energy harvesting from everyday human activities. The team found that BaZrS3, a member of the chalcogenide perovskite family, exhibits a strong piezoelectric response comparable to well-known piezoelectric materials. They created flexible composite films by dispersing BaZrS3 particles in a polymer matrix, demonstrating practical energy harvesting capabilities. These composite films successfully generated electricity from various body movements, including walking, jogging, and hand tapping. The researchers used this energy to charge capacitors and power LED lights, showcasing the potential for real-world applications. First-principles calculations revealed that the unique crystal structure of chalcogenide perovskites, with its loosely packed unit cell and significant vacant space, enables enhanced piezoelectric properties. This breakthrough allows for the development of lead-free, non-toxic piezoelectric materials for energy harvesting and sensing applications. TL;DR #1 - Chalcogenide perovskites exhibit unexpected piezoelectric properties, potentially revolutionizing energy harvesting from mechanical vibrations. #2 - BaZrS3-polymer composites can generate electricity from body movements, powering small electronic devices. #3 - The unique crystal structure of chalcogenide perovskites enables their enhanced piezoelectric response. #4 - This discovery provides a lead-free, environmentally friendly alternative to traditional piezoelectric materials. #5 - The research demonstrates practical applications in charging capacitors and powering LEDs using harvested energy. #RenewableEnergy #MaterialScience #EnergyHarvesting #WearableTech #ScientificBreakthrough