A5010277968- Advanced Thermoelectric Materials and Devices
- Thermal properties of materials
- Chalcogenide Semiconductor Thin Films
- Thermal Radiation and Cooling Technologies
- Advanced Photocatalysis Techniques
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Quantum Dots Synthesis And Properties
- 2D Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Heusler alloys: electronic and magnetic properties
- Perovskite Materials and Applications
- Topological Materials and Phenomena
- Advanced Nanomaterials in Catalysis
- Copper-based nanomaterials and applications
- Magnetic and transport properties of perovskites and related materials
- Advanced Thermodynamics and Statistical Mechanics
- TiO2 Photocatalysis and Solar Cells
- Dielectric materials and actuators
- Thermal Expansion and Ionic Conductivity
- MXene and MAX Phase Materials
- Transition Metal Oxide Nanomaterials
- Microbial Applications in Construction Materials
- Physics of Superconductivity and Magnetism
- Phase Change Materials Research
Nanjing Tech University
2016-2025
Chinese Academy of Sciences
2008-2025
Suzhou Institute of Nano-tech and Nano-bionics
2025
Harbin University of Science and Technology
2020-2024
South China University of Technology
2024
Center for Life Sciences
2022
Tsinghua University
2016-2022
Shenzhen Bay Laboratory
2022
Xinxiang University
2017-2021
Max Planck Institute for Chemical Physics of Solids
2016-2020
We report on the thermoelectric (TE) performance of intrinsic n-type AgBiSe2, a Pb-free material with more earth-abundant and cheaper elements than p-type homologous AgSbTe2. Pb doping changes AgBiSe2 to but leads poor electrical transport properties. Nb enhances TE properties by increasing carrier concentration. As result intrinsically low thermal conductivity (0.7 W m–1 K–1), resistivity (5.2 mΩ cm), high absolute Seebeck coefficient (−218 μV/K), figure merit (ZT) at 773 K is significantly...
The Cassie-state stability plays a vital role in the applications of metallic superhydrophobic surfaces. Although large number papers have reported performance various surface micro/nanostructures, knowledge which kind micro/nanostructure contributes significantly to especially under low temperature and pressure is still very limited. In this article, we fabricated six kinds typical micro/nanostructures with different topography features on metal surfaces by femtosecond laser, these were...
As a new eco-friendly thermoelectric material, copper tin sulfide (Cu2SnS3) ceramics were experimentally studied by Zn-doping. Excellent electrical transport properties obtained virtue of 3-dimensionally conductive network for holes, which are less affected the coexistence cubic and tetragonal phases that formed upon Zn subsitition Sn; highest power factors ~0.84 mW m-1 K-2 at 723 K was achieved in 20% doped sample. Moreover, an ultralow lattice thermal conductivity close to theoretical...
Abstract In this work, a record high thermoelectric figure‐of‐merit ZT of 1.6 ± 0.2 at 873 K in p‐type polycrystalline Bi 0.94 Pb 0.06 CuSe 1.01 O 0.99 by synergy rational band manipulation and novel nanostructural design is reported. First‐principles density functional theory calculation results indicate that the state Fermi level crosses valence can be significantly reduced measured optical bandgap enlarged from 0.70 to 0.74 eV simply replacing 1% with Se, both indicating potentially...
Abstract As an eco‐friendly oxide‐based thermoelectric material, Bi 2 O Se exhibits considerable potential for practical device application, but its low electrical conductivity needs to be further improved achieve higher performance. Here, a record‐high figure of merit, ZT >0.7 at 773 K in the shear‐exfoliated nanostructured with graphite nanosheets as multifunctional secondary nanoinclusions, is achieved. The introduced regularize arrangement nanograins, strengthen anisotropy, and act...
As one of the promising thermal energy storage materials, inorganic hydrate salts have long been suffering from two intrinsic drawbacks including phase segregation and supercooling in their heat applications. In this study, Na2SO4·10H2O@SiO2 solid nanobowls, structured as Na2SO4·10H2O nanoclusters dispersed SiO2 matrix, were synthesized on a large scale through hydrolysis tetraethyl silicate 3-aminopropyltriethoxysilane synchronously reverse-microemulsion. Microstress imbalance originated...
The effect of Pb doping on the thermoelectric properties p-type BiCuSeO from 25 K to 873 has been studied. electrical resistivity and Seebeck coefficient Bi1−xPbxCuSeO both decreased monotonically in all temperature range with increasing content due increased carrier concentration. power factor (x = 0.03) reaches 5.3 μW cm−1 K−2 at K. influence Pb2+ electronic structure is same as one obtained Sr2+, however, decrease holes mobility reduced compared Sr2+ doping, which could be beneficial performances.
Mohite-type ternary sulfide Cu<sub>2</sub>SnS<sub>3</sub>, which has been intensively studied in the photovoltaic field, recently attracted much attention as an outstanding p-type eco-friendly thermoelectric material.
BiAgSeS shows intrinsically low thermal conductivity in the temperature range from 300 K (∼0.46 W m−1 K−1) to 823 (∼0.29 K−1). Low coupling with enhanced electrical transport properties achieved through partially substituting S2− by Cl− leads a high ZT of ∼1.0 at for BiAgSeS0.97Cl0.03, indicating that system is promising thermoelectric power generation applications.
Subcellular targeting and local translation of mRNAs are critical for axon development. However, the precise control mRNA requires investigation. We report that Fmr1-encoded protein, FMRP-mediated axonal delivery miR-181d negatively regulates elongation by locally transcripts MAP1B (Map1b) calmodulin (Calm1) in primary sensory neurons. affected synthesis axons. FMRP was associated with miR-181d, Map1b, Calm1. Both deficiency Fmr1(I304N) mice Fmr1 knockdown impeded Calm1 reduced protein...
Very recently, a novel layered oxyselenide Bi2O2Se has attracted much attention as promising n-type eco-friendly thermoelectric material, especially for the counterpart of p-type BiCuSeO. However, very poor electrical conductivity intrinsic polycrystalline prohibits further development its performance. In present work, and facile method using kitchen blender was developed large-scale production nanosheets. The transport behavior resultant bulk via shear exfoliation changes from...
Thermally conductive and flame-retardant polyolefin composites are facing great challenges in meeting the increasing demands for fire safety thermal management. Aiming at simultaneously enhancing conductivity flame retardancy, hexagonal boron nitride (hBN) magnesium hydroxide (MH) were adopted ethylene–vinyl acetate copolymer/polyolefin elastomer (EVA/POE) blends to design with selective filler distributions co-continuous networks via different processing schemes. The retardancy show strong...
Fe-doping enables n-type BiCuSeO and improves the performances of p-type BiCuSeO.
Owing to the high near-room-temperature thermoelectric performance, Bi2Te2.7Se0.3 (BTS)-based semiconductors have gained significant attention and acted as n-type materials in practical devices. To achieve higher performance polycrystalline BTS, this work, we employ SnSe multifunctional micro/nanoinclusions via co-shear-exfoliating BTS ingots sintering as-achieved hybrid powders into bulk materials. Experimental results indicate that 2D-structured reduces average size of shear-exfoliated...
Since 2010, we have evidenced the very promising thermoelectric properties of layered oxychalcogenides, with parent compound BiCuSeO, which could be used in conversion systems 300?600??C temperature range. These materials, that were first studied early 2000s for their optoelectronic properties, exhibit figure merit values around 1.4 at 650??C, makes them best lead- or tellurium-free p-type materials ever reported to date. In this paper, will review chemical, structural and physical family an...
Thermoelectric performance of BiCuSeO can be remarkably enhanced by increasing spin entropy and Seebeck coefficient through magnetic ion incorporation.
This study reports on the successful synthesis and properties of polycrystalline AgPb m SnSe 2+ ( = ∞ , 100, 50, 25) samples with a rock salt structure. Between ≈160 ≈400 K, dominant scattering process carriers in this system changes from acoustic phonon PbSe to ionized impurity which synergistically optimizes electrical thermal transport properties. Thanks faint amount AgSnSe 2 Seebeck coefficient is enhanced by boosting factor, electric conductivity improved increase concentration holes...