A5101450513- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Thermal properties of materials
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Thermal Radiation and Cooling Technologies
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- Heusler alloys: electronic and magnetic properties
- Electromagnetic wave absorption materials
- MXene and MAX Phase Materials
- Innovative Energy Harvesting Technologies
- Perfectionism, Procrastination, Anxiety Studies
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Energy Harvesting in Wireless Networks
- Advanced Thermodynamics and Statistical Mechanics
- Crystallization and Solubility Studies
- Flame retardant materials and properties
- Phase-change materials and chalcogenides
- 2D Materials and Applications
- Thermal Expansion and Ionic Conductivity
- TiO2 Photocatalysis and Solar Cells
- X-ray Diffraction in Crystallography
- Advancements in Battery Materials
Huazhong University of Science and Technology
2014-2025
Materials Processing (United States)
2025
Materials Science & Engineering
2025
Zhejiang A & F University
2024
Central South University
2023-2024
State Key Laboratory of Materials Processing and Die & Mould Technology
2016-2023
Hebei Normal University
2023
Nanyang Technological University
2017-2022
Northwestern University
2017-2022
Henan University
2021
Uniform Ni3 C nanodots dispersed in ultrathin N-doped carbon nanosheets were successfully prepared by carburization of the two dimensional (2D) nickel cyanide coordination polymer precursors. The based have lateral length about 200 nm and thickness 10 nm. When doped with Fe, exhibited outstanding electrocatalytic properties for both hydrogen evolution reaction (HER) oxygen (OER). For example, 2 at % Fe (atomic percent) depict a low overpotential (292 mV) small Tafel slope (41.3 mV dec-1 )...
The rational design and synthesis of nonprecious, efficient, stable electrocatalysts to replace precious noble metals are crucial the future hydrogen economy. Herein, a partial sulfurization/phosphorization strategy is proposed synthesize nonstoichiometric pyrrhotite-type cobalt monophosphosulfide material (Co0.9S0.58P0.42) with hexagonal close-packed phase for electrocatalytic water splitting. By regulating degree sulfurization, P/S atomic ratio in can be tuned activate Co3+/Co2+ couples....
Abstract Herein, the authors present development of novel 0D–2D nanohybrids consisting a nickel‐based bimetal phosphorus trisulfide (Ni 1− x Fe PS 3 ) nanomosaic that decorates on surface MXene nanosheets (denoted as NFPS@MXene). The are obtained through facile self‐assemble process transition metal layered double hydroxide (TMLDH) surface; followed by low temperature in situ solid‐state reaction step. By tuning Ni:Fe ratio, as‐synthesized NFPS@MXene exhibit excellent activities when tested...
Heterostructures with abundant phase boundaries are compelling for surface-mediated electrochemical applications. However, rational design of such bifunctional electrocatalysts efficient hydrogen and oxygen evolution reactions (HER OER) is still challenging. Here, due to the well-matched lattice parameters, we easily achieved epitaxy two-dimensional ternary nickel thiophosphate (NiPS3) nanosheets in-grown dinickel phosphide (Ni2P) through an in situ growth strategy. Density functional theory...
The discordant Zn and Ga atoms raise the carrier concentration soften phonon modes, resulting in superior performance nanostructured n-type PbTe.
We investigate the structural and physical properties of AgSnmSbSem+2 system with m = 1-20 (i.e., SnSe matrix ∼5-50% AgSbSe2) from atomic, nano, macro length scales. find 50:50 composition, 1 AgSnSbSe3), forms a stable cation-disordered cubic rock-salt p-type semiconductor special multi-peak electronic valence band structure. AgSnSbSe3 has an intrinsically low lattice thermal conductivity ∼0.47 W m-1 K-1 at 673 K owing to synergy cation disorder, phonon anharmonicity, velocity, low-frequency...
Abstract Self‐assembled monolayers (SAMs) employed in inverted perovskite solar cells (PSCs) have achieved groundbreaking progress device efficiency and stability for both single‐junction tandem configurations, owing to their distinctive versatile ability manipulate chemical physical interface properties. In this regard, we present a comprehensive review of recent research advancements concerning SAMs cells, where the prevailing challenges future development prospects applications are...
We studied the effect of doping with Bi on thermoelectric properties SnTe-based materials.
p‐type CuInTe 2 thermoelectric (TE) materials are of great interest for applications in the middle temperature range because their environmentally benign chemical component and stable phase under operating temperatures. In order to enhance TE performance compete with Pb based materials, a progressive regulation electrical thermal transport properties has been employed this work. Anion P Sb substitution is used tune first time, leading sharp enhancement power factor due reduction resistivity...
Presented are the theoretical calculation and experimental studies of a Ti
Abstract It is reported that electron doped n‐type SnSe 2 nanoplates show promising thermoelectric performance at medium temperatures. After simultaneous introduction of Se deficiency and Cl doping, the Fermi level shifts toward conduction band, resulting in two orders magnitude increase carrier concentration a transition to degenerate transport behavior. In addition, all‐scale hierarchical phonon scattering centers, such as point defects, nanograin boundaries, stacking faults, layered...
Abstract Single crystalline SnSe is one of the most intriguing new thermoelectric materials but performance polycrystalline seems to lag significantly compared that a single crystal. Here an effective strategy for enhancing p‐type by Ag/Na dual‐doping and Ag 8 6 (STSe) nanoprecipitates reported. The leads two orders magnitude increase in carrier concentration convergence valence bands (VBM 1 VBM 5 ), which turn results sharp enhancement electrical conductivities high Seebeck coefficients...
Abstract The scalable preparation of 2D nanomaterials is challenging and highly desirable for fundamental interest practical applications. Herein, an efficient solid‐state method developed producing emerging ternary layered metal phosphorus trichalcogenide (MPS 3 , M = Fe, Co, Ni) nanosheets on a large scale. high‐quality MPS single‐crystal are exposed with (00l) facets have average lateral size ≈200 nm thickness ≈18 nm. Moreover, their interlayer spacing can be expanded by intercalating...
PbTe-based thermoelectric materials are some of the most promising for converting heat into electricity, but their n-type versions still lag in performance p-type ones. Here, we introduce midgap states and nanoscale precipitates using Ga-doping GeTe-alloying to considerably improve PbTe. The GeTe alloying significantly enlarges energy band gap PbTe subsequent Ga doping introduces special that lead an increased density (DOS) effective mass enhanced Seebeck coefficients. Moreover, nucleated...
We report that Ga-doped and Ga-In-codoped n-type PbS samples show excellent thermoelectric performance in the intermediate temperature range. First-principles electronic structure calculations reveal Ga doping can cause Fermi level pinning by introducing a gap state between conduction valence bands. Furthermore, Ga-In codoping introduces an extra band. These added features lead to high electron mobilities up μH ∼ 630 cm2 V-1 s-1 for n of 1.67 × 1019 cm-3 significantly enhanced Seebeck...
Abstract A new p‐type high entropy semiconductor AgMnGeSbTe 4 with a band gap of ≈0.28 eV is reported as promising thermoelectric material. crystallizes in the rock‐salt NaCl structure cations Ag, Mn, Ge, and Sb randomly disordered over Na site. Thus, strong lattice distortion forms from large difference atomic radii Sb, resulting low thermal conductivity 0.54 W m −1 K at 600 K. In addition, exhibits degenerate behavior average power factor 10.36 µW cm −2 temperature range 400–773 As...
The reaction of MnTe with AgSbTe2 in an equimolar ratio (ATMS) provides a new semiconductor, AgMnSbTe3. AgMnSbTe3 crystallizes average rock-salt NaCl structure Ag, Mn, and Sb cations statistically occupying the Na sites. is p-type semiconductor narrow optical band gap ∼0.36 eV. A pair distribution function analysis indicates that local distortions are associated location Ag atoms lattice. Density functional theory calculations suggest specific electronic multi-peak valence maxima prone to...
Thermoelectrics enable waste heat recovery, holding promises in relieving energy and environmental crisis. Lillianite materials have been long-term ignored due to low thermoelectric efficiency. Herein we report the discovery of superior performance Pb
Abstract The development of efficient thermal energy management devices such as thermoelectrics and barrier coatings often relies on compounds having low lattice conductivity ( κ l ). Here, we present the computational discovery a large family 628 thermodynamically stable quaternary chalcogenides, AMM′Q 3 (A = alkali/alkaline earth/post-transition metals; M/M′ transition metals, lanthanides; Q chalcogens) using high-throughput density functional theory (DFT) calculations. We validate...
Abstract The sharp reduction in size and increase power density of next‐generation integrated circuits lead to electromagnetic interference heat failure being a key roadblock for their widespread applications polymer‐based electronic packaging materials. This work demonstrates multifunctional epoxy‐based composite (MDCF@LDH/EP) with high wave (EMW) absorption, thermal conductivity, flame retardancy performance. In which, the synergistic effect porous structure heterointerface promotes...