A5101718436- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Thermal Expansion and Ionic Conductivity
- Heusler alloys: electronic and magnetic properties
- Thermal properties of materials
- Advanced Battery Materials and Technologies
- Quantum Dots Synthesis And Properties
- Thermal Radiation and Cooling Technologies
- Magnetic and transport properties of perovskites and related materials
- Ferroelectric and Piezoelectric Materials
- Perovskite Materials and Applications
- Superconducting Materials and Applications
- Advanced ceramic materials synthesis
- Advanced Thermodynamic Systems and Engines
- Magnetic Properties of Alloys
- Spacecraft and Cryogenic Technologies
- Crystal Structures and Properties
- Carbon Nanotubes in Composites
- Aluminum Alloys Composites Properties
- Polymer crystallization and properties
- Tribology and Wear Analysis
- Quantum Electrodynamics and Casimir Effect
- High-pressure geophysics and materials
- Phase-change materials and chalcogenides
- Copper-based nanomaterials and applications
Chinese Academy of Sciences
2013-2023
Technical Institute of Physics and Chemistry
2013-2023
Tsinghua University
2017
University of Chinese Academy of Sciences
2014-2016
p-Type PbTe is an outstanding high temperature thermoelectric material with zT of 2 at temperatures due to its complex band structure which leads valley degeneracy. Lead-free SnTe has a similar electronic structure, suggests that it may also be good material. However, stoichiometric strongly p-type semiconductor carrier concentration about 1 × 10(20) cm(-3), corresponds minimum Seebeck coefficient and zT. While in the case p-PbTe (and n-type La3Te4) one would normally achieve higher by using...
The thermoelectric performance improvement of SnS by introducing Se into S sublattice is reported.
Lead-free polycrystalline SnSe is a promising thermoelectric compound consisting of earth-abundant elements.
Dense bulk samples of (Ag,In)‐co‐doped Cu 2 SnSe 3 have been prepared by a fast and one‐step method combustion synthesis, their thermoelectric properties investigated from 323 to 823 K. The experimental results show that Ag‐doping at site remarkably enhances the Seebeck coefficient, reduces both electrical thermal conductivities, finally increases figure merit (ZT) value. ZT 1.85 Ag 0.15 sample reaches 0.80 773 K, which is improved about 70% compared with unadulterated (ZT = 0.46 K). First...
The La(Fe,Si) 13 ‐based compounds have been recently developed as promising negative thermal expansion (NTE) materials by elemental substitution, which show large, isotropic and nonhysteretic NTE properties well relatively high electrical conductivities. In this paper, the hydrides are prepared a novel electrolytic hydriding method. Furthermore, magnetic of investigated variable‐temperature X‐ray diffraction physical property measurement system. Fascinatingly, it is found that...
Some group III elements such as Indium are known to produce the resonant impurity states in IV-VI compounds. The discovery of these has opened up new ways for engineering thermoelectric properties In this work, SnTe were studied by co-doping with both (In) and extrinsic (Ag, I) dopants. A characteristic nonlinear relationship was observed between Hall carrier concentration (nH) dopant (NI, NAg) stabilization region, where a linear increase does not lead response measured nH. Upon...
SnTe thermoelectric materials with low lattice thermal conductivity were synthesized by a self-propagating method under high-gravity field.
Abstract Functional fillers prepared by facile natural materials have attracted much attention for their superior engineering performances and promise to replace the traditional, expensive, environmentally unfriendly fillers. Herein, carbon fiber aerogel (CFA) was an annealing process of cotton. Silicon carbide (SiC)@CFA with antihygroscopic thermal stability further obtained in‐situ growth via template‐assisted chemical vapor deposition method. After that, CFA/Epoxy composites SiC@CFA/Epoxy...
In-doped Cu<sub>2</sub>SnSe<sub>3</sub> with <italic>ZT</italic> = 1.28 is produced by high-pressure combustion synthesis followed spark plasma sintering.
The present work describes the monitoring system of real-time strain response on curing process epoxy resin from initial point to end, and change in during temperature changes. A simple mould was designed embed gauge, thermometer, quartz standard sample into resin, so that were simultaneously measured recorded. cryogenic-grade tested Differential Scanning Calorimetry (DSC) used analyse process. Based DSC results, three processes adopted investigate their influence as well residual resin....
S and Te-doped Cu2SnSe3 samples with chemical formula of Cu2SnSe3-xSx Cu2SnSe3-xTex (x = 0.05, 0.10, 0.15, 0.20) are prepared, the effect Te-doping on thermoelectric properties is investigated. In all samples, phase synthesized as major product, its lattice parameters decrease S-doping but increase Te-doping. EDS analysis confirms incorporation Te dopants in phase, reveals an element segregation samples. S- decreases electrical conductivity, enhance Seebeck coefficient, reduce thermal...