A5112278308- Advanced Thermoelectric Materials and Devices
- Ferroelectric and Piezoelectric Materials
- Chalcogenide Semiconductor Thin Films
- Biomimetic flight and propulsion mechanisms
- Thermal properties of materials
- Acoustic Wave Resonator Technologies
- Thermal Radiation and Cooling Technologies
- Multiferroics and related materials
- Dielectric materials and actuators
- Micro and Nano Robotics
- Adaptive Dynamic Programming Control
- Advanced materials and composites
- High-Temperature Coating Behaviors
- High Entropy Alloys Studies
- Robotic Locomotion and Control
- Quantum Dots Synthesis And Properties
- Microwave Dielectric Ceramics Synthesis
- Distributed Control Multi-Agent Systems
- Heusler alloys: electronic and magnetic properties
- Surface Modification and Superhydrophobicity
- Welding Techniques and Residual Stresses
- Genetics, Aging, and Longevity in Model Organisms
- Advanced Welding Techniques Analysis
- Underwater Vehicles and Communication Systems
- Carbon Nanotubes in Composites
Tsinghua University
2010-2024
Shanghai Jiao Tong University
2021-2024
Southern Medical University
2022-2024
Northwestern University
2024
Yanshan University
2024
The Affiliated Yongchuan Hospital of Chongqing Medical University
2023
Chongqing Medical University
2023
Zhejiang Energy Group (China)
2023
Hebei University of Science and Technology
2018-2021
State Key Laboratory of New Ceramics and Fine Processing
2014-2019
Thermoelectric technology enables the harvest of waste heat and its direct conversion into electricity. The efficiency is determined by materials figure merit ZT Here we show a maximum ~2.8 ± 0.5 at 773 kelvin in n-type tin selenide (SnSe) crystals out plane. thermal conductivity layered SnSe lowest out-of-plane direction [two-dimensional (2D) phonon transport]. We doped with bromine to make overlapping interlayer charge density (3D transport). A continuous phase transition increases...
Defect engineering is a well-established approach to customize the functionalities of perovskite oxides. In demanding high-power applications piezoelectric materials, acceptor doping serves as state-of-the-art hardening approach, but inevitably deteriorates electromechanical properties. Here, new effect associated with isolated oxygen vacancies for achieving well-balanced performances proposed. Guided by theoretical design, performance mechanical quality factor (Qm ) and coefficient (d33...
SnSe, a "simple" and "old" binary compound composed of earth-abundant elements, has been reported to exhibit high thermoelectric performance in single crystals, which stimulated recent interest its polycrystalline counterparts. This work investigated the electrical thermal transport properties pristine Na-doped SnSe1-xTex polycrystals prepared by mechanical alloying spark plasma sintering. It is revealed that solid solutions are formed when x ranges from 0 0.2. An energy barrier scattering...
Microstructure engineering is an effective strategy to reduce lattice thermal conductivity (κ
Investigation of electrical and thermal transport properties in powder-processed Bi<sub>2</sub>Te<sub>3−x</sub>Se<sub>x</sub> thermoelectric alloys determined the optimal composition based on defect chemistry.
Developing high-efficiency materials with earth-abundant and low-toxicity elements has become a popular trend in the field of thermoelectrics. Among these compounds, oxides sulfides, lighter, cheaper green analogies tellurides, have been extensively investigated summarized as well defined classes. Nonetheless, vast family selenides better electrical performance, lower thermal conductivity higher thermoelectric efficiency not specially discussed. Here this review, we present recent advances...
Abstract Bi 2 Te 3 thermoelectric materials are utilized for refrigeration decades, while their application of energy harvesting requires stable and mechanical performances at elevated temperatures. This work reveals that a steady zT ≈0.85 200 to 300 °C can be achieved by doping small amounts copper iodide (CuI) in 2.2 Se 0.8 –silicon carbide (SiC) composites, where SiC nanodispersion enhances the flexural strength. It is found CuI plays two important roles with atomic Cu/I dopants...
Abstract P –type SnS compound and 1−x Se x solid solutions were prepared by mechanical alloying followed spark plasma sintering (SPS) their thermoelectric properties then studied in different compositions (x = 0.0, 0.2, 0.5, 0.8) along the directions parallel (//) perpendicular (⊥) to SPS–pressurizing direction temperature range 323–823 Κ. exhibited anisotropic performance showed higher power factor thermal conductivity ⊥ than // one. The decreased with increasing contents of fell 0.36 W m...
Abstract Background Nonalcoholic fatty liver disease (NAFLD) is associated with disordered lipid and iron metabolism. Our previous study has substantiated the pivotal role of Caveolin-1 (Cav-1) in protecting hepatocytes mediating metabolism liver. This aimed to explore specific mechanisms underlying regulation by Cav-1 NAFLD. Methods Hepatocyte-specific overexpression mice knockout were used this study. -knockdown RAW264.7 cells mouse primary performed verify changes vitro. Moreover, a...
This letter presents the design, fabrication, and performance test of a fish-like underwater miniature robot directly driven by two piezoelectric actuators. Considering different medium conditions ever-present challenge waterproofing in motion, miniaturization robots is regarded as an innovative task. In this letter, mimicking swing fish caudal fins to generate thrust, actuator used drive artificial fins. merely consists six components, including PZT actuators, pair fins, glass fiber...
For further thermoelectric performance enhancement by the nanocomposite effect, a small amount (&lt;2 vol. %) of 30 nm SiC particles were added into compositionally optimized AgPbmSbTem+2 alloy fabricated mechanical alloying and spark plasma sintering. Although energy filtering effect is not available in present composite due to mismatched interface between matrix, dispersions revealed be effective reduce thermal conductivity via enhancing phonon scattering. A high figure merit up 1.54...
Both lead selenide (PbSe) and tin (SnSe) are promising thermoelectric compounds consisting of earth-abundant elements, between which solid solutions can be formed over a wide composition range. This study investigated the electrical thermal transport properties n-type Pb1-xSnxSe (x = 0, 0.01, 0.05, 0.1 0.15) with emphasis on effect Sn substitution. Small amounts substitution ≤ 0.1) increased conductivity but showed less influence Seebeck coefficient, leading to improved power factors, were...
A powder metallurgical process was used to synthesise Cu<sub>12</sub>Sb<sub>4</sub>S<sub>13−x</sub>compounds as natural powders for use high performance thermoelectric materials.
Abstract Nanoporous architecture has long been predicted theoretically for its proficiency in suppressing thermal conduction, but less concerned as a practical approach better thermoelectric materials hitherto probably due to technical challenges. This article demonstrates study on nanoporous PbSe–SiO 2 composites fabricated by facile method of mechanical alloying assisted subsequent wet‐milling and then spark plasma sintering. Owing the formation random nanopores additional interface...
This work reveals the effectiveness of sodium doping in MnTe as a thermoelectric material fabricated by facile method.