Articles tagged with Thermoelectric Materials
A new layered crystal, TlFe1.6Se2, combines high thermoelectric power factor with exceptionally low thermal conductivity, offering a promising strategy for designing next-generation thermoelectric materials. The material's unique electronic properties and Fe-vacancy ordering enhance its performance.
Researchers develop a new strategy for producing negative thermal expansion (NTE) materials, enabling safer and more efficient synthesis. The approach combines reverse coprecipitation with oxidation in a single step, eliminating the need for harsh chemicals and reducing environmental impact.
A novel dual-scale encapsulation strategy for thermal energy storage using bio-derived palmitic acid and nanocellulose is reported. The composite achieved excellent shape stability and leakage resistance with a cumulative leakage rate of only 0.03% after heating.
Researchers developed a novel approach to convert technical lignin into functional coatings using low-energy suspension plasma spraying (LE-SPS). The new technique eliminates the need for solvents, crosslinkers, or catalysts, and produces continuous and dense coatings with improved UV attenuation and anti-fogging behavior.
Researchers have identified a mechanism to improve energy efficiency by converting wasted heat into electricity using hollow silicon nanotubes. This technology has the potential to replace rare metals with abundant silicon, leading to more efficient thermoelectric devices.
TEGNet accelerates optimization in thermoelectric generator design by predicting performance with high accuracy and speed. The AI model enables designers to freely combine independent models for various materials, enabling complex structure exploration and high conversion efficiencies.
Researchers have discovered a new thermoelectric material, MoSi2, that can convert waste heat into electricity with high efficiency. The material's unique electronic structure and axis-dependent conduction polarity enable it to generate transverse thermopower, paving the way for efficient waste heat recovery systems.
Researchers have optimized the thermoelectric performance of SnSe using liquid phase sintering, introducing excess metallic tin to fill intrinsic vacancies and reduce electron trapping. This process results in a lattice thermal conductivity as low as 0.21 W·m⁻¹·K⁻¹ at 793 K, achieving an exceptional ZT value of approximately 1.9.
Two University of Houston scientists, Zhifeng Ren and Yan Yao, have been named Highly Cited Researchers by Clarivate's program for their significant scientific influence in energy research. Their work has led to transformative discoveries and innovations in superconductivity and energy storage.
Researchers from Shenzhen University review cement-based thermoelectric materials for their potential in smart construction, energy harvesting, and structural monitoring. The study highlights key challenges and proposes future directions for the development of these materials.
Researchers at Tohoku University have developed an AI-built materials map that combines experimental data with computational predictions to identify promising materials for thermoelectric waste-heat recovery. The map enables faster development timelines and reduces trial-and-error, accelerating innovation in energy-related technologies.
Researchers at NIMS have successfully observed the transverse Thomson effect, a phenomenon that releases or absorbs heat when a heat current, charge current, and magnetic field are applied orthogonally. This achievement could lead to breakthroughs in thermoelectric effects and thermal management technologies.
Researchers developed a systematic solution combining high-throughput calculations and machine learning to find high-performance materials. Thermal expansion enhances thermoelectric performance by reducing lattice thermal conductivity and increasing the Seebeck coefficient.
Binary indium chalcogenides exhibit unique structural properties and excellent thermoelectric performance, making them valuable for research and applications. The review reveals the importance of mixed valence states and unconventional chemical bonds in regulating electron-phonon transport and achieving low lattice thermal conductivity.
Researchers developed a lightweight, mechanically robust porous polymer that mimics a natural loofah sponge. It can filter viruses, block objects, and has a range of functional properties due to its flexibility when wet and pH responsiveness.
Researchers at DTU developed a new electronic material that behaves like human skin, offering self-healing and adaptive properties. The material can stretch up to six times its original length, regulate heat, and detect environmental factors, making it suitable for wearable devices, soft robotics, and healthcare applications.
A research team at TU Wien has demonstrated how electrical current can be generated using 'traffic jam of electrons' in certain materials. By incorporating additional immobile charge carriers into the material, they were able to create a significant improvement in thermoelectric properties.
Researchers at Johns Hopkins University Applied Physics Laboratory have developed nano-engineered thermoelectric refrigeration technology with controlled hierarchically engineered superlattice structures (CHESS) that is twice as efficient as traditional bulk materials. The CHESS technology offers a scalable alternative to traditional c...
Scientists have developed a new microscope that accurately measures directional heat flow in materials. This advancement can lead to better designs for electronic devices and energy systems, with potential applications in faster computers, more efficient solar panels, and batteries.
Researchers at Queensland University of Technology have developed a new material that can convert body heat into electricity with improved mechanical properties and flexibility. The material, AgCu(Te, Se, S), was enhanced using vacancy engineering techniques.
Researchers have developed a new material, coronene-Br2 NDA cocrystal, which converts solar heat into electricity with an exceptional photothermal conversion efficiency of 67.2% under 808 nm irradiation. The material is integrated into a thermoelectric generator to achieve high-performance solar-thermoelectric energy harvesting.
Researchers developed new hybrid materials with reduced lattice vibrations and increased mobility of charge carriers, achieving more than a 100% increase in efficiency. This breakthrough decouples heat and charge transport, enabling stable and cheaper thermoelectric materials that can compete with existing compounds.
New research validates theoretical models on how nanoscopic ripples affect material properties, leading to a better understanding of their mechanical behavior. The study's findings have significant implications for the development of microelectronics and other technologies that rely on thin films.
Researchers at Graz University of Technology developed a new understanding of how complex materials like organic semiconductors and MOFs transport thermal energy. They discovered that phonon tunneling plays a crucial role in heat conduction, enabling targeted design of materials with specific thermal properties.
Researchers at Lancaster University are developing high-performance memory devices using self-assembled molecular technology to overcome the von Neumann bottleneck in computing. The Memristive Organometallic Devices (MemOD) project aims to deliver faster, more stable, and energy-efficient AI hardware.
Scientists from ISTA create thermoelectric coolers with improved performance and reduced waste by 3D printing materials, offering potential for medical applications and energy harvesting. The innovative method reduces production costs and enhances material properties.
Researchers have developed a new thermoelectric material by introducing copper atoms into commercial n-type Bi₂Te₃-based alloys. This enhances carrier mobility and improves the device's performance, resulting in higher power factor and ZT values. The study's findings hold promise for practical applications in power generation and cooling.
A team of researchers developed a machine learning framework to streamline the discovery of high-performance ionic thermoelectric materials. The approach predicted Seebeck coefficients with high accuracy and identified critical molecular descriptors influencing material performance.
Researchers at Seoul National University have developed a machine learning-based design of experiments method that optimizes the performance and process conditions of organic thermoelectric devices, enabling efficient evaluation of key variables and reducing experimental time. The technology has the potential to significantly improve d...
Researchers demonstrate transverse thermoelectric conversion in WSi2 for the first time, using mixed-dimensional Fermi surfaces to enable TTE effect. The study paves the way for developing new sensors and efficient thermoelectric materials.
Researchers at KAIST have developed a thermoelectric material that can generate electricity from body temperature and maintain stable performance even in extreme environments. The material, made of bismuth telluride fibers, has higher bending strength and showed no change in electrical properties after repeated bending tests.
Researchers at Penn State created more efficient thermoelectric materials than previously possible, reaching 15% conversion efficiency. This advancement could lead to smaller devices and increased energy production, making long-distance space exploration more feasible.
Researchers at Kyushu University developed a new organic thermoelectric device that can generate power from ambient temperature. The device, composed of copper phthalocyanine and fullerenes, achieved an open-circuit voltage of 384 mV and a short-circuit current density of 1.1 μA/cm².
The research team has successfully demonstrated the control of thermal radiation by metasurfaces, achieving circularly polarized light with full control over emission direction. This breakthrough enables the creation of custom light sources with desired spectral, polarization, and spatial features for various applications.
Researchers at POSTECH have developed an innovative approach to enhance the efficiency of thermoelectric materials by altering their geometry to resemble an hourglass shape. This breakthrough could lead to widespread applications in thermoelectric power generation, converting waste heat into electricity.
Researchers have developed a novel polymeric multi-heterojunction structure that surpasses traditional materials' limitations, achieving a high dimensionless figure of merit (ZT) exceeding 1.0. The new design manipulates thermal conductivity in organic systems, leading to a significant reduction in lattice thermal conductivity and exce...
Physicists have achieved a record-setting level of electron mobility in a thin film of ternary tetradymite, a class of mineral found in gold and quartz deposits. The material's high electron mobility makes it suitable for efficient thermoelectric devices that convert waste heat into electricity.
Scientists have discovered a material that can harness waste heat, increasing energy efficiency and sustainability. The researchers found that thinner cadmium arsenide films exhibit higher thermoelectric sensitivity, allowing for more efficient cooling in cryogenic environments.
Researchers at Okayama University have developed a novel method to produce carbon nanotube yarns with excess electrons that can harvest waste heat. The yarns achieved high thermoelectric power factors within temperatures ranging from 30 to 200 °C, making them suitable for practical applications such as fabric-based modules.
Scientists at Nara Institute of Science and Technology create flexible wearable thermoelectric generators that produce electricity from body heat using high-performing carbon nanotube yarns. The yarns, developed through a low-cost and environmentally friendly method, show three times higher power factor than previous CNT yarns.
New approach uses calculation to predict band convergence in materials, allowing for rapid creation of high-performance thermoelectric devices. The method enables elimination of unnecessary possibilities, increasing efficiency and reducing false starts.
A team of researchers has created a thermoelectric composite that exhibits a substantially larger transverse thermoelectric effect than existing magnetic materials, enabling the development of simpler thermoelectric devices. The device achieved a maximum output voltage of 15.2 μV/K, approximately six times larger than expected.
A team of scientists at NIMS and Nagoya University has developed a novel method to create transverse thermoelectric conversion materials from common soft magnetic alloys. By applying a short period of heat treatment, they significantly improve the performance of anomalous Nernst effect, leading to enhanced energy efficiency and thermal...
Dr Emmanuel Defay has received an ERC grant to develop highly efficient technology converting waste heat into 100 watts of electrical power. The project aims for a 50% energy efficiency rate, applicable to various industries with high-quality or lower temperature waste heat.
Researchers developed a new method to predict thermoelectric materials using AI, avoiding trial-and-error and overfitting. The approach achieved remarkable accuracy in predicting newly available materials, providing guidance for experiments.
Researchers have demonstrated a new material that can generate electricity from heat using topological magnet properties, offering a more efficient and cost-effective solution. This breakthrough could lead to the development of superior magneto-thermoelectric materials.
Researchers at Osaka University have developed a new thermoelectric material that can improve the efficiency of temperature-to-electricity conversion, enabling more sustainable IoT applications. The innovation has potential to power environmental monitoring systems and wearable devices.
A NIMS research team developed a hybrid material capable of simultaneously exhibiting three types of TEC phenomena, including magneto-thermoelectric effects. By incorporating permanent magnets, the team achieved improved transverse TEC efficiency without external magnetic fields.
Researchers developed inverse-perovskite-based thermoelectric materials with low lattice thermal conductivity and high power factor, promising eco-friendly alternatives to toxic heavy element-based materials. The materials exhibit high energy conversion efficiency, comparable to toxic elements in the same temperature range.
Researchers have developed a thermal management technique for photonic packages using glass substrates and thermoelectric vias, enabling precise temperature control. The technology, termed SimTEC, combines through glass vias partially filled with copper and thermoelectric materials to reduce thermal resistance between chips.
Scientists have successfully observed the anisotropic magneto-Thomson effect in magnetic materials, where heat absorption/release changes depending on magnetization direction. This discovery could lead to new functionalities for controlling thermal energy using magnetism.
Scientists have found that by controlling ion flow through nanopores, they can achieve cooling. At high concentrations, increased heat was measured, but at low concentrations, negatively charged ions interacted with the nanopore wall, resulting in a decrease in temperature.
Researchers used a unique X-ray technique to capture soundwaves' propagation in a diamond crystal, revealing ultrafast structural phenomena that were previously beyond scientific reach. The breakthrough enables real-time imaging of solid materials with unprecedented resolution and speed.
The UNIST team successfully fabricated high-quality Te thin films without heat treatment at low temperatures, achieving perfect atom arrangement. The developed process enables precise thickness control and uniform deposition on wafer-scale, suitable for various electronic devices.
Researchers at Vienna University of Technology have discovered a new metallic alloy of nickel and gold that exhibits exceptional thermoelectric properties, enabling high electrical power generation. The alloy outperforms conventional semiconductors in terms of power density and thermoelectric efficiency.
Lancaster University researchers have developed a novel scanning thermal microscopy approach to directly measure the heat conductivity of two-dimensional materials. This breakthrough enables the creation of efficient waste heat scavengers generating cheap electricity, new compact fridges, and advanced optical and microwave sensors and ...
The team created a thermocell using a hydrogel that reacted to temperature changes, converting latent heat into electricity. This breakthrough supports the idea that various materials can be used for thermoelectric conversion, potentially reducing reliance on other energy sources and improving cooling systems.
Scientists found that atomic-level structural changes in tin selenide help it conduct electricity but not heat, making it a promising material for thermoelectric solutions. The discovery could lead to new technologies for applications like refrigeration and waste heat recovery.
The prize recognizes the duo's discovery that topology can classify compounds, similar to the Periodic Table. They have predicted and designed thousands of new topological compounds and experimented with many of these.
A novel 3D printing method called high-throughput combinatorial printing (HTCP) produces materials with unique compositions and properties at microscale spatial resolution. This approach has the potential to accelerate materials discovery, particularly for clean energy and biomedical applications.