A5003891067- Advanced Thermoelectric Materials and Devices
- Thermal properties of materials
- Thermal Radiation and Cooling Technologies
- Chalcogenide Semiconductor Thin Films
- Advanced Sensor and Energy Harvesting Materials
- High-Temperature Coating Behaviors
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Nuclear materials and radiation effects
- Advanced materials and composites
- Graphene research and applications
- Thermal Expansion and Ionic Conductivity
- Electromagnetic wave absorption materials
- Crystal Structures and Properties
- Fuel Cells and Related Materials
- Nuclear Materials and Properties
- Silicon Nanostructures and Photoluminescence
- Rare-earth and actinide compounds
- Innovative Energy Harvesting Technologies
- MXene and MAX Phase Materials
- Corrosion Behavior and Inhibition
- Gas Sensing Nanomaterials and Sensors
- Solid-state spectroscopy and crystallography
- Additive Manufacturing and 3D Printing Technologies
Nanjing Tech University
2020-2024
State Key Laboratory of New Ceramics and Fine Processing
2017-2022
Tsinghua University
2017-2022
Northwestern Polytechnical University
2022
Dislocations are commonly present and important in metals but their effects have not been fully recognized oxide ceramics. The large strain energy raised by the rigid ionic/covalent bonding ceramics leads to dislocations with low density (∼106 mm-2), thermodynamic instability spatial inhomogeneity. In this paper, we report ultrahigh (∼109 mm-2) of edge that uniformly distributed compositional complexity. We demonstrate progressively thermodynamically stabilized increasing complexity...
Hybrid inorganic-organic superlattice with an electron-transmitting but phonon-blocking structure has emerged as a promising flexible thin film thermoelectric material. However, the substantial challenge in optimizing carrier concentration without disrupting prevents further improvement of performance. Here we demonstrate strategy for optimization hybrid TiS2[tetrabutylammonium] x [hexylammonium] y , where organic layers are composed random mixture tetrabutylammonium and hexylammonium...
Dispersing two-dimensional (2D) graphene sheets in 3D material matrix becomes a promising route to access the exceptional mechanical and electrical properties of individual bulk quantities for macroscopic applications. However, this is highly restricted by uncontrolled distribution orientation structures as well weak graphene-matrix bonding poor load transfer. Here, we propose previously unreported avenue embed ordered 2D array into ceramics matrix, where catastrophic fracture failure mode...
Graphene has attracted intensive interests from broad areas of chemistry, physics, and materials science, among others. Interest in graphene's thermoelectric (TE) applications engendered a large pile publications speeding-up pace research, making review such research timely. This is covering the TE properties their optimization strategies graphene graphene-based hybrids, as well utilizations other functional devices.
Abstract Yttria-stabilized zirconia (YSZ) has been used as a thermal barrier coating (TBC) material in gas turbines for several decades. Although continuous efforts have made to develop novel TBC materials that can work at higher temperature, no single other than YSZ all the desired attributes TBCs. In this paper, we report in-situ synthesis of quasi-binary GdNbO 4 /Gd 3 NbO 7 composites based on simple Gd 2 O -Nb 5 binary phase diagram. The fracture toughness these is remarkably enhanced...
The past decades have witnessed surging demand for wearable electronics, which thermoelectrics (TEs) are considered a promising self-charging technology, as they capable of converting skin heat into electricity directly. Bi2Te3 is the most-used TE material at room temperature, due to high zT ~1. However, it different integrate TEs owing its intrinsic rigidity. could be flexible when made thin enough, but this implies small electrical and thermal load, thus severely restricting power output....
Heavily acceptor-doped Cu2SnS3 (CTS) shows promisingly large power factor (PF) due to its rather high electrical conductivity (σ) which causes a modest ZT with electronic thermal (κe). In the present work, strategy of carrier compensation through Sb-doping at Sn site in Cu2Sn0.8Co0.2S3 was investigated, aiming tailoring and phonon transport properties simultaneously. Rietveld analysis suggested complex polymorphic microstructure cation-(semi)ordered tetragonal phase becomes dominant over...
Abstract Flexible thermoelectrics (TEs) that fit curved human skin well, could harvest energy from skin, and thus have been considered as a promising portable power source for wearable electronics. Bi 2 Te 3 , the most popular room‐temperature TE material, is still challenging to be applied in flexible devices due its rigid nature. Although many ‐based films reported when made thin enough, thermal electrical loads across them are rather small with severe limitation on maximum output. This...
Thermoelectric (TE) technology enables direct conversion between thermal and electrical energies thus has been regarded as an alternative for energy harvesting refrigeration. Bismuth telluride (Bi2Te3) is the most widely used TE material at room temperature due to its high figure of merit (∼1). Since first publication on electrodeposition Bi2Te3 films in 1994, a large number publications emerged last two decades, owing advantages such simple safe preparation, deposition rate, convenient...
Sn-assisted liquid phase sintering was adopted to form band barriers and dislocation arrays, making low-energy carriers phonons scatter in the cellular structured Cu 2 Sn 0.8 Co 0.2 S 3 , a record-high ZT value of 1.03 at 773 K obtained.
Abstract Bimode temperature‐pressure sensors hold significant promise in personal health monitoring, wearables and robotic signal detection. Traditional bimode typically combine two independent sensors, leading to fabrication complexity. This study develops a sensor by using facile electrodeposition method create sandwiched BiSbTe/Carbon Paper/BiSbTe thin films stacking them vertical structure. It demonstrates high sensitivity for temperature sensing, capable of detecting difference as low 1...
P-type eco-friendly thiospinel CuCrSnSe4 with a complex structure was investigated as potential thermoelectric material in this paper. In view of the low intrinsic carrier concentration, cobalt-doping carried out at Sn site for series CuCrSn1- x Co Se4 ceramics. contrast to thermally activated conduction pristine CuCrSnSe4, electrical conductivity degenerate characteristic effectively increased increasing Co-doping result significant increase hole leading 3-fold enhancement power factor 7 μW...
TiS2-xmol%SnSe (x= 0, 0.5, 1 and 2) bulks prepared by spark plasma sintering from synthetic powders via liquid-assisted shear exfoliation (LASE) process were investigated for the influences of SnSe on microstructural thermoelectric transport properties. Results showed an improved carrier mobility related to enhanced texturing degree LASE, together with increased concentration addition possibly due charge transfer, giving rise high power factors, optimally ~16.4 μW cm-1 K-2, which is almost...