Articles tagged with Thermoelectric Materials
Researchers discovered that correlated rattling atomic chains can suppress thermal conductivity in thermoelectric materials, a mechanism that can aid in producing high-performance materials. The study provides new guidelines for engineering improved thermoelectric materials with lower thermal conductivity.
A team of Clemson researchers has developed a new method to evaluate the efficiency of thermoelectric materials, called the figure-of-merit (zT), which considers temperature, electrical conductivity, and thermal conductivity. The new method uses Peltier cooling to measure zT with higher resolution and accuracy.
Researchers have discovered a synthetic sulfide mineral that converts heat into electricity efficiently and safely. The novel material, composed of copper, manganese, germanium, and sulfur, shows two crystal structures within the same material and has a stable temperature range up to 400 degrees Celsius.
Researchers developed a thermoelectric device with an array of π junctions, generating voltages over 0.5V. The device was fabricated using semiconductor microfabrication technology, enabling precise micro-scale π junctions.
A team of researchers at Hokkaido University has developed a barium cobalt oxide thermoelectric converter that is reproducibly stable and efficient at temperatures as high as 600°C. This breakthrough material shows promise for wide deployment in high-temperature thermoelectric conversion devices.
Rice chemists adapt flashing process to synthesize pure boron nitride and boron carbon nitride flakes with varying degrees of carbon. The flakes show promise as an effective anticorrosive coating, protecting copper surfaces up to 92% better than traditional compounds.
A team of scientists from A*STAR and NTU Singapore have developed technology to transform expired solar cells into enhanced thermoelectric material, which harvests heat and converts it into electricity. The technology achieved a record-high thermoelectric figure of merit of 0.45 at 873 K.
Scientists have discovered a way to optimize thermoelectric properties in one material by exploiting the Anderson transition, where electrons move freely, enabling efficient energy conversion. This breakthrough could lead to improved performance in thermoelectric devices and applications, such as power generation and waste heat recovery.
Researchers at KTH Royal Institute of Technology have developed a thermoelectric coating that converts low-grade heat into electrical power, with potential to replace batteries in wearables and IoT devices. The coating can be applied to any surface that generates heat, enabling efficient energy harvesting.
Researchers uncover a new mechanism for lowering thermal conductivity in a unique material, which could aid the search for materials converting heat to electricity or vice versa. The discovery reveals a quantum mechanical twist on what drives exceptional thermoelectric properties.
Researchers discovered electronic structure properties common to high-performance thermoelectric materials and developed a versatile materials design approach. The database of two electronic structure parameters correlated with thermoelectric conversion properties revealed relationships between chemical elements and material properties.
Researchers have developed a way to change the atomic structure of tin selenide using intense pulses of near-infrared laser light, creating materials with dramatic new properties. This breakthrough opens up possibilities for improving thermoelectrics and other materials by controlling their structure.
Scientists at Hefei Institutes of Physical Science found that As/Sb elements can improve the band structure and band gap of SnTe, enhancing its thermoelectric properties. The results show that Ge-As co-doping in SnTe improves Seebeck coefficients, power factor, and conversion efficiency.
Researchers at Nagoya University have discovered a Ta2PdSe6 crystal with an unprecedented large Peltier conductivity, reaching 100 A cm^-1 K^-1 at 10 K. The team attributes this to the high mobility and low concentration of holes within the crystal.
Researchers discovered a large anomalous Nernst effect in the antiferromagnet YbMnBi2, outperforming ferromagnets. The effect is attributed to topology and high spin-orbit coupling, enabling a record-breaking thermoelectric performance.
Scientists develop a new way to control heat flow through ultrathin layers, promising sensitive thermoelectric devices. Weaker coupling between layers reduces heat transport by up to ten times.
Scientists have discovered a way to break the trade-off between thermopower and conductivity in LaTiO3 films, resulting in a hundred-fold increase in power factor. This breakthrough promises to advance thermoelectric materials and make waste heat conversion more efficient.
Researchers at UNIST have developed a thermoelectric tube using 3D printing that can effectively convert waste heat into electricity. The new technology has a high thermoelectric performance and is more effective than conventional cuboid-shaped devices.
Researchers have developed a high-performing thermoelectric material that converts heat to electricity with record-high efficiency, making it suitable for widespread industrial applications. The purified tin selenide in polycrystalline form overcomes earlier oxidation problems, enabling the production of low-cost and efficient devices.
Researchers have discovered a new inorganic material with the lowest thermal conductivity ever reported, offering fundamental insights into heat management and waste heat conversion. The material combines two arrangements of atoms that slow down heat transport, resulting in a significant reduction in thermal conductivity.
The AIP Publishing Horizons Virtual Conference on energy storage and conversion will feature 12 speakers covering six areas of energy science from Aug 4-6, 2021. Researchers will unveil the latest advances in battery materials, thermoelectric materials, solar cells, and sensing systems.
Researchers at Ohio State University have discovered a single compound that functions as an efficient thermoelectric generator, producing power from waste heat. The compound's unique property allows it to carry both positive and negative charges independently, generating electricity without moving parts.
Researchers demonstrate controlled reversal of thermoelectric current in a tiny cloud of atoms by tuning interaction strength. This breakthrough advances the fundamental understanding of interacting quantum systems and paves the way for designing efficient thermoelectric materials.
Researchers at Stanford University have developed a new method to harness waste heat from wearables using nanotube-based thermoelectric generation. This technology converts uneven heat distribution into electrical energy, reducing the need for batteries and making wearable devices more sustainable.
Researchers have developed a high-performance thermoelectric compound by intertwining crystalline and amorphous sublattices into a unique crystal-amorphic duality. The new material exhibits excellent thermoelectric performance, paving the way for better electric power in the future.
Researchers from Tokyo Metropolitan University developed a new quantity to measure the dimensionality of thermoelectric nanomaterials. This metric varies differently with conductivity for 1D, 2D, and 3D systems, providing clear distinctions in how it changes, agreement with theoretical predictions.
A South Korean research team has developed a high-efficiency flexible thermoelectric device capable of autonomously generating electricity from body heat. The device features a sponge-like configuration that enhances thermal insulation, allowing it to perform better than existing flexible thermoelectric devices.
Researchers at NIMS demonstrated a record-high transverse thermopower using a composite of thermoelectric and magnetic materials. The hybrid structure generated +82 μV/K positive and -41 μV/K negative thermopowers, more than 10 times larger than the previous highest recorded thermopower.
Researchers at KAUST have developed electron-transporting, air-stable organic semiconductors that can generate electricity from waste heat. The polymers' unique design enhances electrical conductivity and thermoelectric performance, paving the way for scalable, sustainable energy solutions.
Researchers studied the effect of 2D MoS2 layers on thermoelectric power in YIG/Pt heterostructures. They found that using a holey MoS2 multilayer increased thermoelectric power by 60%. The study revealed two quantum phenomena, the inverse spin Hall effect and the inverse Rashba-Edelstein effect, responsible for this increase.
Research by Nagoya Institute of Technology scientists has clarified how crystal defects in half-Heusler Ni-based alloys contribute to high thermoelectric conversion efficiencies. The study used large-scale crystal structure simulations and XAFS spectra to analyze the effects of atomic defects on material properties.
Researchers at UCI used advanced electron microscopy to study phonons near defects in cubic silicon carbide, a material used in electronic devices. The team's findings could improve thermal properties and provide insights into defect structures.
Scientists at Hokkaido University have achieved a record-setting thermoelectric figure of merit for metal oxides, which can be used to enhance thermoelectric power generation. The material exhibits a high ZT value and stability across a range of operating temperatures.
Thermoelectric materials work by exploiting heat flow, providing emission-free energy. New materials are needed to improve cooling efficiency and control, expanding the existing market.
Researchers at the University of Wollongong have developed a new thermoelectric material with record-high conversion efficiency, improving heat-to-electricity conversion by over 60%. The discovery could enable the creation of body-heat powered personal devices, revolutionizing low-maintenance electronics and zero-carbon power generation.
A new theory developed by scientists at SISSA has established a relationship between the presence of 'handles' in the space of atom and molecule arrangements and a material's electrical conductivity. The research found that materials equipped with handles, previously thought to be insulators, can conduct electricity like metals.
Researchers at the University of Groningen have developed an efficient organic thermoelectric material made from buckyballs with organic side chains. This breakthrough enhances the material's ability to convert temperature differences into electricity, making it suitable for powering wearable electronics and sensors.
A UVA-led research team designs and manufactures thermoelectric devices with increased efficiency and reduced costs. They employ additive manufacturing and advanced materials science techniques to bridge the gap between material performance and device efficiency.
A team of Clemson researchers and international scientists have discovered a new way to measure thermoelectric material properties by using light. This breakthrough could lead to the creation of more efficient thermoelectric materials with higher zT values, which convert heat energy into useful electric energy.
Researchers from Tokyo University of Science found that Sb atoms introduce a slight distortion in the interatomic distances, promoting phonon scattering and increasing thermal conductivity. This leads to improved electrical conductivity and thermoelectric performance of doped Mg2Si.
Researchers at Duke University discovered that certain thermoelectric materials have low thermal conductivity due to their 'floppy' atomic vibrations at high temperatures. This understanding will help develop new and better options for technologies converting heat into electricity.
A new study by North Carolina State University researchers found a flexible material made of tiny carbon nanotubes that can heat or cool the wearer on demand. The material has a combination of thermal, electrical, and physical properties that make it an appealing candidate for next-generation smart fabrics.
Researchers have found a new material with extremely low thermal conductivity, attributed to the weakening of chemical bonds in its one-dimensional chain structure. This discovery opens up potential applications for thermoelectric materials and thermal barrier coatings.
Researchers have developed self-powered 'paper chips' that sense early forest fires and relay a signal. The thermoelectric paper sensors are made from eco-friendly materials and can be wirelessly transmitted to responders.
A team of researchers from the University of Tokyo has developed an iron-based thermoelectric material that can convert waste heat into electricity. The material, which is mostly iron and relatively inexpensive, has shown promise in powering small devices such as remote sensors and wearable devices.
Researchers at Linköping University have developed a soft and stretchable organic thermoelectric module that can harvest energy from body heat. The breakthrough was made possible by a new composite material with high electrical conductivity and good thermoelectric properties.
Researchers at KAUST have developed a stretchy and self-healing thermoelectric material that can generate electricity using body heat. The material has been shown to be robust enough to withstand daily stress and strain, making it a promising candidate for powering wearable technologies.
Researchers have developed new thermoelectric materials, halide perovskites, which can convert heat into electricity at lower costs. The team improved the materials' properties through partial oxidation and doping techniques, paving the way for their use in sustainable energy applications.
Scientists at Vienna University of Technology have developed a new thermoelectric material with a ZT value of 5 to 6, generating electrical current very efficiently from temperature differences. This enables sensors and small processors to supply themselves with energy wirelessly.
Researchers have discovered unconventional energy- and direction-dependent spin textures on the surface of pyrite-type crystals, enabling both in-plane and out-of-plane spin components. This finding opens new possibilities for topological spintronics devices and unlocks the potential of pyrite in future spintronics applications.
Scientists at Carnegie Institution improve thermoelectric performance by applying pressure and mixing in charged particles of chromium, enabling efficient room-temperature electricity generation
Researchers at National University of Singapore (NUS) developed high-performance thermoelectric materials that can directly convert heat to electrical energy. The team discovered the interplay of triple electronic bands in selenium-doped tin sulphide crystals, leading to improved thermal transport and environmental friendliness.
A new thermoelectric material has been developed using strontium titanate and titanium oxide, allowing for the transformation of exhaust heat into electrical energy. The material's biphase structure and nanosized grains increase its thermoelectric efficacy, enabling devices to operate at high temperatures without overheating.
Researchers successfully applied machine learning to discover innovative materials with desired properties from limited data. The study identifies thousands of promising virtual polymers with high thermal conductivity, outperforming typical polyimides.
Researchers have discovered a new thermoelectric material that works efficiently at room temperature, requiring less expensive materials like magnesium. The material's production could close the performance gap with traditional bismuth-tellurium-based alloys, expanding the use of thermoelectric modules for cooling.
Researchers use Word2vec to analyze relationships between words in scientific literature, predicting discoveries of new thermoelectric materials years in advance. The algorithm learns concepts like the periodic table and crystal structure of metals without human guidance.
Osaka University researchers enhance thermoelectric material's power factor by over 100% by varying pressure, improving its ability to generate electricity from waste heat. The study reveals the Lifshitz transition plays a crucial role in thermoelectric properties.
Researchers at the University of Houston have developed a model to explain asymmetrical thermoelectric performance, enabling the prediction of promising new materials for converting waste heat to power. The discovery could lead to more efficient thermoelectric devices and potentially clean energy from waste heat.
Researchers at Swansea University have developed a 3D printed thermoelectric device that converts heat into electric power with an efficiency factor of up to 1.7, significantly higher than the previous best for printed materials. The breakthrough could boost energy efficiency in industries with high temperatures, such as steelmaking.
Researchers at Oak Ridge National Laboratory developed MiniFuel to test nuclear fuels, detecting performance data faster than conventional methods. The lab also created an auto-surveillance tool to detect healthcare data errors in the Department of Veterans Affairs' system.