Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Chalcogenide perovskites provide a promising avenue for nontoxic, stable thermoelectric materials. Here, the thermal transport and thermoelectric properties of BaZrS as a typical orthorhombic perovskite are investigated. An extremely low lattice thermal conductivity κ of 1.84 W/mK at 300 K is revealed for BaZrS, due to the softening effect of Ba atoms on the lattice and the strong anharmonicity caused by the twisted structure. We demonstrate that coherence contributions to κ, arising from wave-like phonon tunneling, lead to an 18% thermal transport contribution at 300 K. The increasing temperature softens the phonons, thus reducing the group velocity of materials and increasing the scattering phase space. However, it simultaneously reduces the anharmonicity, which is dominant in BaZrS and ultimately improves the particle-like thermal transport. In addition, via replacement of the S atom with Se- and Ti-alloying strategy, the value of BaZrS is significantly increased from 0.58 to 0.91 at 500 K, making it an important candidate for thermoelectric applications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.jpclett.3c02940 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
High-Performance Air-Stable Polymer Monolayer Transistors for Monolithic 3D CMOS logics.
Adv Mater
September 2025
State Key Laboratory of Fabrication Technologies for Integrated Circuits, Chinese Academy of Sciences, Beijing, 100029, China.
The monolayer transistor, where the semiconductor layer is a single molecular layer, offers an ideal platform for exploring transport mechanisms both theoretically and experimentally by eliminating the influence of spatially correlated microstructure. However, the structure-property relations in polymer monolayers remain poorly understood, leading to low transistor performance to date. Herein, a self-confinement effect is demonstrated in the polymer monolayer with nanofibrillar microstructures and edge-on orientation, as characterized by the 4D scanning confocal electron diffraction method.
View Article and Find Full Text PDFTopology in Thermal, Particle, and Plasma Diffusion Metamaterials.
Chem Rev
September 2025
Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200438, P. R. China.
Diffusion is a fundamental process in the transfer of mass and energy. Diffusion metamaterials, a class of engineered materials with distinctive properties, enable precise control and manipulation of diffusion processes. Meanwhile, topology, a branch of mathematics, has attracted growing interest within the condensed matter physics community.
View Article and Find Full Text PDFUnderstanding the Impact of Flow Fields on the Performance of Direct Methanol Fuel Cells: A Review on Design Trends.
Chem Rec
September 2025
Department of Chemical Engineering, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, M. P., 462066, India.
Flow fields (FFs) play multifaceted roles in direct methanol fuel cells (DMFC) by facilitating the transport and distribution of species, removal of products, support to the membrane electrode assembly (MEA), electrical conductivity, water, and thermal management. Therefore, the performance of DMFC is directly related to the pattern and geometry of the FF. DMFCs can generate power density of up to ≈100-300 mW cm; however, their performance is impeded by cathode flooding, CO gas bubbles formation, and mass transfer limitations.
View Article and Find Full Text PDFAttenuate host susceptibility to respiratory virus invasion by inhibiting interactions between host proteins SLC16A3 and AP1G1.
Microbiol Spectr
September 2025
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
Modulating cell endocytosis activity to reduce host susceptibility to virus represents a promising strategy for antiviral drug development. In this study, we reveal that lactate transporter SLC16A3 is a critical host factor for reducing diverse virus invasion. By performing metabolomics, proteomics, and thermal proteome profiling experiments, AP1G1, a pivotal protein involved in cellular endocytosis, was indiscriminately screened as a chaperone of SLC16A3.
View Article and Find Full Text PDFElectrolyte-Driven Cu Substitution in MoSe: Synergy of an Inorganic-Rich Solid Electrolyte Interphase and Thermal Activation for Sodium-Ion Batteries.
ACS Nano
September 2025
Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.
Transition metal chalcogenides (TMCs) have garnered significant attention as high-capacity anode materials, yet the unconventional role of the Cu collector meditating atomic-level substitution of metal-site cations by Cu ions during electrochemical cycling remains mechanistically unclear. To address this, herein, Cu-doped MoSe@C ultrathin nanosheets were synthesized via the solvothermal process and carbonization strategies. A systematic investigation was conducted to elucidate the underlying driving forces for Cu substitution at Mo sites and the crucial regulatory effects of solid electrolyte interphase (SEI) formation.
View Article and Find Full Text PDF