A5103033847- Advanced Thermoelectric Materials and Devices
- Thermal properties of materials
- Thermal Radiation and Cooling Technologies
- Chalcogenide Semiconductor Thin Films
- Heusler alloys: electronic and magnetic properties
- Advanced Thermodynamics and Statistical Mechanics
- Thermal Expansion and Ionic Conductivity
- Prosthetics and Rehabilitation Robotics
- Phase-change materials and chalcogenides
- 2D Materials and Applications
- Catalytic Processes in Materials Science
- Thermodynamic and Structural Properties of Metals and Alloys
- Intermetallics and Advanced Alloy Properties
- Stroke Rehabilitation and Recovery
- Perovskite Materials and Applications
- Spinal Cord Injury Research
- Optical properties and cooling technologies in crystalline materials
- Image Enhancement Techniques
- Image and Signal Denoising Methods
- Advanced Image Fusion Techniques
- Perfectionism, Procrastination, Anxiety Studies
- Muscle activation and electromyography studies
- Mercury impact and mitigation studies
- Advanced Vision and Imaging
- Nanoparticle-Based Drug Delivery
Harbin Institute of Technology
2018-2025
Institut Clément Ader
2023-2024
Chinese Academy of Sciences
2022-2024
University of Chinese Academy of Sciences
2022-2024
Dalian University of Technology
2022-2024
Ningbo Institute of Industrial Technology
2022-2024
Institut Superieur de l'Aeronautique et de l'Espace (ISAE-SUPAERO)
2024
Université de Toulouse
2024
Université Toulouse III - Paul Sabatier
2024
Centre National de la Recherche Scientifique
2024
Abstract Since thermoelectric materials have different physical and chemical properties, the design of contact layers requires dedicated efforts, welding temperatures are distinctly different. Therefore, a general interface connection technology can greatly facilitate development devices. Herein, we proposed screening strategy for based on calculation phase diagram method, Mg 2 Ni has been identified as matched layer n-type 3 Sb -based materials. And this be effectively applied to other By...
Abstract Bi 2 Te 3 ‐based alloys have historically dominated the commercial realm of near room‐temperature thermoelectric (TE) materials. However, more widespread application is currently constrained by its mediocre TE performance and inferior mechanical properties resulting from intrinsic hierarchical structure. Herein, microstructure modulation carrier transport optimization strategies are employed to efficiently balance electro‐thermal performance. Specifically, weighted mobility...
Bismuth-telluride-based alloy has long been considered as the most promising candidate for low-grade waste heat power generation. However, optimizing thermoelectric performance of n-type Bi
Zintl compounds are considered to be potential thermoelectric materials due their "phonon glass electron crystal" (PGEC) structure. A promising Zintl-phase material, 2-1-2-type Eu2ZnSb2 (P63/mmc), was prepared and investigated. The extremely low lattice thermal conductivity is attributed the external Eu atomic layers inserted in [Zn2Sb2]2- network structure of 1-2-2-type EuZn2Sb2 [Formula: see text], as well abundant inversion domain boundary. By regulating Zn deficiency, electrical...
Entropy is a physical quantity gauging the degree of chaos in system. High entropy alloying thus an effective strategy to reduce lattice thermal conductivity thermoelectric materials. In this paper, PbTe, GeTe, and MnTe are coalloyed with SnTe form single-phase solid solution. Because inclusion various elements at cationic (Sn2+) site, configurational increases, phonon scattering strongly enhanced, leading reduced conductivity. addition, Seebeck coefficient improved because band modification...
Abstract An ideal thermoelectric material requires the multi‐valley and strong dispersion band structure, for relieving competition between thermopower electrical conductivity, whereas two features barely coexist in natural compounds. Here, significantly improved performance n ‐type PbSe‐ x AgSbS 2 with purposefully renormalized conduction structure is reported. It shown that spin‐orbit coupling effect splits single valley at “L” point into three individuals delicately, as Dirac shifted away...
Abstract Small‐molecule ruthenium (Ru) complexes exhibit limitations in terms of nonspecific delivery, rapid metabolism, and low tumor accumulation. Their delivery can be improved through physical encapsulation into nanocarriers via hydrophobic forces, metallophilic interactions, or π–π stacking interactions. However, delivering Ru for efficient therapy is substantially hindered by potential leakage drugs, drug‐loading capacity, batch‐to‐batch variations. Moreover, current...
Abstract Single crystal tin selenide (SnSe) has attracted much attention for its excellent thermoelectric performance. However, polycrystalline SnSe exhibits unsatisfactory figure‐of‐merit due to the inferior electrical properties, especially n‐type SnSe. In this work, a high concentration of Br doping (6–12 atm%) on Se site effectively increases Hall carrier from 1.6 × 10 17 cm −3 (p‐type) in undoped 1.3 19 (n‐type) Br‐doped 0.88 0.12 , leading an increased conductivity close that single...
Abstract 1‐2‐2‐type Zintl phase compounds have promising thermoelectric properties because of their complex crystal structures and multiple valence‐band structures. In this work, a series single (Yb 0.9 Mg 0.1 )Mg x Zn 2− Sb 2 ( = 0, 0.2, 0.4, 0.6, 0.8, 1) are prepared by alloying YbZn with 10 at% MgZn different amounts YbMg . The incorporation at the Yb site, as well not only leads to an effective orbital alignment confirmed dramatically enhanced density states mass Seebeck coefficients,...
TiFe0.5Ni0.5Sb-based half-Heusler compounds have the intrinsic low lattice thermal conductivity and adjustable band structure. Inspired by previously reports to achieve both p- n-type components tuning ratio of Fe Ni based on same parent TiFe0.5Ni0.5Sb, we selected Co as amphoteric dopants prepare p-type pseudo-ternary Ti(Fe, Co, Ni)Sb-based alloys. The carrier concentration, well density states effective mass was significantly increased doping, contributing enhanced power factor 1.80 mW m−1...
Abstract The good co‐existence of midgap state and valence band degeneracy is realized in Bi‐alloyed GeTe through the In‐Cd codoping to play different but complementary roles structure modification. In doping induces results a considerably improved Seebeck coefficient near room temperature, while Cd significantly increases mid‐high temperature region by promoting convergence. synergistic effects obviously increase density effective mass from 1.39 2.65 m 0 , corresponding carrier mobility...
Abstract Recently, GeTe has emerged as a very promising thermoelectric material. However, the pristine exhibits intrinsically low Seebeck coefficient and high thermal conductivity. Therefore, resolving these issues is critical for further promoting its performance. Herein, PbTe AgSbTe 2 are chosen to form solid solution with GeTe. Benefitting from converged electronic bands reduced conductivity after alloying, performance of GeTe‐based materials effectively improved. In addition, alloying...
Abstract Bismuth‐telluride‐based alloy is the sole thermoelectric candidate for commercial application in low‐grade waste heat harvest near room temperature, but sharp drop of properties at higher temperature and weak mechanical strength zone‐melted material are main obstacles to its wide development power generation. Herein, an effective approach reported improve performance p ‐type Bi 0.42 Sb 1.58 Te 3 hot‐pressed sample by incorporating Ag 5 SbSe 4 . A peak ZT 1.40 375 K a high average...
The thermoelectric performance of p-type PbTe was found to be superior that n-type PbTe, mainly owing the successful band engineering materials.
Abstract GeTe alloys have attracted wide attention due to their high conversion efficiency. However, pristine possesses intrinsically massive Ge vacancies, leading a very hole concentration (10 21 cm −3 ). Herein, decreased carrier is realized by alloying NaSbTe 2 in the increased formation energy of vacancies. This also lowers separation between valence bands rhombohedral and induces two extra band pockets around Fermi surface along Γ‐L L‐W cubic GeTe, all which contributes higher power...
A wearable thermoelectric generator using human body temperature is a promising power supply for electronics. Here we discuss the design and fabrication of one kind constructed by n-type Mg3.2Bi1.498Sb0.5Te0.002 legs, p-type Bi0.4Sb1.6Te3 polyurethane matrices, flexible Cu/polyimide electrodes. The proposed device has low thermal bypass an efficient contact interface, resulting in peak density ∼20.6 μW/cm2 when placed on arm at ambient 289 K (air velocity, 1.1 m/s) high 13.8 mW/cm2...
Bipolar effect is a common negative factor for the optimization of thermoelectric materials. Usually, it can be suppressed by enlarging band gap or increasing concentration majority carrier. Here, we report anomalous bipolar-like and its suppression in GeMnTe2, an emerging thermoelectrics with narrow high carrier concentration. By introducing extra Sb doping, transport inflection points induced are removed, accompanied decrease Based on X-ray diffraction magnetic susceptibility measurements,...
Bearings are critical in mechanical systems, as their health impacts system reliability. Proactive monitoring and diagnosing of bearing faults can prevent significant safety issues. Among various diagnostic methods that analyze vibration signals, deep learning is notably effective. However, bearings often operate noisy environments, especially during failures, which poses a challenge to most current assume noise-free data. Therefore, this paper designs Multi-Location Multi-Scale Multi-Level...