A5100454871- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Thermal properties of materials
- Quantum Dots Synthesis And Properties
- Phase-change materials and chalcogenides
- Electromagnetic wave absorption materials
- Thermal Radiation and Cooling Technologies
- Conducting polymers and applications
- Heusler alloys: electronic and magnetic properties
- Berberine and alkaloids research
- Physics of Superconductivity and Magnetism
- Ferroelectric and Piezoelectric Materials
- Advanced biosensing and bioanalysis techniques
- Metal and Thin Film Mechanics
- Advanced battery technologies research
- Electrochemical Analysis and Applications
- Metamaterials and Metasurfaces Applications
- Surface and Thin Film Phenomena
- Transition Metal Oxide Nanomaterials
- Chromatography in Natural Products
- Advanced Chemical Physics Studies
- Microstructure and mechanical properties
- Petroleum Processing and Analysis
- Coal and Its By-products
South China University of Technology
2024
Huazhong University of Science and Technology
2022-2024
Wuhan University of Technology
2008-2024
State Key Laboratory of Materials Processing and Die & Mould Technology
2023
Nanjing University
2022
Guizhou Minzu University
2022
State Key Laboratory of Analytical Chemistry for Life Science
2022
Qilu University of Technology
2022
Shandong Academy of Sciences
2022
Chongqing University
2018-2021
Abstract Lead‐free tin sulfide (SnS), with an analogous structure to SnSe, has attracted increasing attention because of its theoretically predicted high thermoelectric performance. In practice, however, polycrystalline SnS performs rather poorly as a result low power factor. this work, bulk sodium (Na)‐doped single crystals are synthesized using modified Bridgman method and detailed transport evaluation is conducted. The highest zT value ≈1.1 reached at 870 K in 2 at% Na‐doped crystal along...
Semiconductor metal–organic frameworks (MOFs) and heterojunctions have gained increasing attention in many fields, yet their full potential remains largely unexplored. Advanced optobioelectronics are envisioned to create more opportunities for innovative biomedical applications. This study reports a UiO-66-NH2 (U6N)/CdS quantum dots (QDs)-gated organic photoelectrochemical transistor (OPECT) its application toward energy-transfer-based sensitive microRNA-166a (miRNA-166a) detection assisted...
With the development of 5G technology and increasing chip integration, traditional active cooling methods struggle to meet growing thermal demands chips. Thermoelectric Coolers (TECs) have garnered attention due their rapid response, significant differentials, strong compatibility, high stability, controllable device dimensions. This review, starting from fundamental principles thermoelectric design, summarizes high-performance materials comprehensively reviews progress advanced on-chip...
Abstract Exploring N‐type High‐entropy materials with both high thermoelectric and mechanical properties is highly desirable for all‐high‐entropy generators (TEGs) since the of one are largely behind its P‐type counterparts. Herein, a new rock‐salt structure entropy AgBiPbSe 2 S introduced bandgap ≈0.43 eV. The atomic radii difference each component results in large lattice distortion 0.246, leading to low thermal conductivity 0.36 W m −1 K at 823 K. figure merit ( ZT ) reaches 0.6 Moreover,...
Abstract Introducing nanotwins in thermoelectric materials represents a promising approach to achieving such synergistic combination of properties and mechanical properties. By increasing configurational entropy, sharply reduced stacking fault energy new nanotwinned high‐entropy semiconductor AgMnGePbSbTe 5 is reached. Dense coherent nanotwin boundaries this system provide an efficient phonon scattering barrier, leading high figure merit ZT ≈2.46 at 750 K average ≈1.54 (300—823 K) with the...
This work systematically investigated the thermoelectric properties of p-type Na and M (M = K, Li, Ag) codoped polycrystalline SnSe. It is found that electrical SnSe can be improved significantly for (Na, samples, contributed by enhanced carrier concentration. Specifically, a concentration 6.23 × 1019 cm–3 was obtained in Sn0.98Na0.016Ag0.004Se sample at 335 an increase 18% compared with single-doped (5.22 cm–3). The power factor reached ∼0.73 mW m–1 K–2 785 ∼26% one. In addition, Sn-rich...
Nature makes use of molecular charges to operate specific biological synthesis and reactions. Targeting advanced opto-bioelectronic sensors, organic photoelectrochemical transistors (OPECTs), taking advantage the light fuel substituting an external gate potential, is now debuting expected serve as a universal platform for studying rich light–biomatter interplay new bioanalytics. Given ubiquity charged biomolecules in nature, charge manipulation should underpin generic route innovative OPECT...
We investigate the structure and thermoelectric properties of a new high-entropy solid solution system AgMnSn1–xPbxSbTe4 (x = 0, 0.25, 0.5, 0.75, 1), which crystallizes in rock-salt NaCl with cations Ag, Mn, Sn, Pb, Sb randomly disordered over Na site. Our density functional theory calculations indicate that exhibits complex multi-peak valence band structures, whose energy difference is lower than 0.11 eV, leading to effective convergence thus high states mass m* Seebeck coefficients. As...
The influence of the average electronegativity difference between alloying atom and host on alloy scattering potential thus carrier mobility is studied.
Cu2 SnS3 is a promising thermoelectric candidate for power generation at medium temperature due to its low-cost and environmental-benign features. However, the high electrical resistivity low hole concentration severely restricts final performance. Here, analog alloying with CuInSe2 first adopted optimize by promoting formation of Sn vacancies precipitation In, lattice thermal conductivity through stacking faults nanotwins. Such enables greatly enhanced factor 8.03 µW cm-1 K-2 largely...
High performance was achieved in polycrystalline SnSe <italic>via</italic> optimizing electrical transport properties and microstructure design.
Multi-band circular dichroism (CD) response and tunability on the chiral metasurface are crucial for this device’s applications in sensing detection. This work proposes a dual-band CD Au-CaF2-Au dimer elliptical absorber, where chiroptical is realized by breaking geometric symmetry between two ellipses. The proposed can achieve high values of 0.8 −0.74 within 3–5 μm region, be manipulated independently adjusting parameters metasurface. Furthermore, slotted nanocircuit introduced onto to...
Oxygen reduction reaction (ORR), as a multielectron electrode reaction, is an important electrochemical in the field of energy storage systems. Herein, new advanced laboratory experiment designed for undergraduates to master preparation oxygen catalytic electrode. Students can use rotating disk (RDE) and ring-disk (RRDE) evaluate properties ORR catalyst expound kinetics mechanism reaction. By fitting K–L curve calculate electron transfer number, path industrial Pt/C KOH electrolyte be...
Point defects play an important role in regulating the electrical and thermal transport properties of thermoelectric materials, but they are always restricted by solubility dopants matrix.
Abstract The Bi 0.5 Sb 1.5 Te 3 (BST) thin film shows great promise in harvesting low‐grade heat energy due to its excellent thermoelectric performance at room temperature. In order further enhance performance, specifically the power factor and output power, new approaches are highly desirable beyond common “composition‐structure‐performance” paradigm. This study introduces ferroelectric polarization engineering as a novel strategy achieve these goals. A Pb(Zr 0.52 Ti 0.48 )O /Bi (PZT/BST)...
Abstract Seven MgB 2 bulk superconductors with good superconductivity and crystallinity were prepared under the pressure of 50 MPa at 950 °C different sintering durations (15 ∼ 240 min) by spark plasma (SPS), onset critical temperature ( T c,onset ) around 37.5 K. The superconducting properties microstructure measured from facets perpendicular (PeF) parallel (PaF) to compression direction SPSed samples also analyzed investigate effect duration on bulks discrepancy between PeF PaF. optimum...