A5087019504- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Thermal properties of materials
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- 2D Materials and Applications
- Thermal Expansion and Ionic Conductivity
- Heusler alloys: electronic and magnetic properties
- Thermal Radiation and Cooling Technologies
- Perfectionism, Procrastination, Anxiety Studies
- Phase-change materials and chalcogenides
- Gas Sensing Nanomaterials and Sensors
- MXene and MAX Phase Materials
- Crystallography and molecular interactions
- Advanced Photocatalysis Techniques
- Machine Learning in Materials Science
- Conducting polymers and applications
- Copper-based nanomaterials and applications
- Boron and Carbon Nanomaterials Research
- Advanced Thermodynamics and Statistical Mechanics
- nanoparticles nucleation surface interactions
- Magnetic and transport properties of perovskites and related materials
- Topological Materials and Phenomena
Shanghai Jiao Tong University
2019-2025
Shanghai Institute of Ceramics
2015-2024
Chinese Academy of Sciences
2015-2024
Shandong Jiaotong University
2024
Changchun University of Science and Technology
2024
Heilongjiang Bayi Agricultural University
2024
Xi'an University of Science and Technology
2023-2024
Yangtze University
2024
China Spallation Neutron Source
2021
Shanghai Institute of Microsystem and Information Technology
2021
High‐throughput explorations of novel thermoelectric materials based on the Materials Genome Initiative paradigm only focus digging into structure‐property space using nonglobal indicators to design with tunable electrical and thermal transport properties. As genomic units, following biogene tradition, such include localized crystal structural blocks in real or band degeneracy at certain points reciprocal space. However, this approach does not consider how differentiate from others. Here,...
Flexible thermoelectrics is a synergy of flexible electronics and thermoelectric energy conversion. In this work, we fabricated full-inorganic power generation modules based on doped silver chalcogenides.
Abstract Thermoelectric technology has attracted great attention due to its ability recover and convert waste heat into readily available electric energy. Among the various candidate materials, liquid‐like compounds have received tremendous research interest on account of their intrinsically ultralow lattice thermal conductivity, tunable electrical properties, high thermoelectric performance. Despite complex phase transitions diverse crystal structures, materials two independent sublattices...
Inorganic semiconductors are vital for a number of critical applications but almost universally brittle. Here, we report the superplastic deformability indium selenide (InSe). Bulk single-crystalline InSe can be compressed by orders magnitude and morphed into Möbius strip or simple origami at room temperature. The exceptional plasticity this two-dimensional van der Waals inorganic semiconductor is attributed to interlayer gliding cross-layer dislocation slip that mediated long-range In-Se...
Thermoelectric materials require an optimal carrier concentration to maximize electrical transport and thus thermoelectric performance. Element doping composition off-stoichiometry are the two general effective approaches for optimizing concentrations, which have been successfully applied in almost all semiconductors. In this study, we propose a new strategy called bonding energy variation tune concentrations Cu2Se-based liquid-like compounds. By utilizing different bond features Cu2Se Cu2S,...
This review summarizes the recent advances and future challenges for Cu<sub>2</sub>Se-based thermoelectric materials.
We obtained exceptional power factors and zT values in p-type Mg 3 Sb 2 -based materials by alloying Zn at the sites for double band degeneracy Yb 1 of decreased effective mass.
Abstract High‐performance thermoelectric materials require ultralow lattice thermal conductivity typically through either shortening the phonon mean free path or reducing specific heat. Beyond these two approaches, a new unique, simple, yet ultrafast solid‐state explosive reaction is proposed to fabricate nanoporous bulk with well‐controlled pore sizes and distributions suppress conductivity. By investigating wide variety of functional materials, general criteria for reactions are built upon...
Abstract Thermal conductivity is a very basic property that determines how fast material conducts heat, which plays an important and sometimes dominant role in many fields. However, because materials with phase transitions have been widely used recently, understanding measuring temperature‐dependent thermal during are even questionable. Here, the transport equation corrected by including heat absorption due to reveal transition affects measured conductivity. In addition enhanced capacity...
Extremely low thermal conductivity and high thermoelectric performance are found in liquid-like Cu<sub>2</sub>Se<sub>1−x</sub>S<italic>x</italic> polymorphic materials.
Ag<sub>9</sub>GaSe<sub>6</sub> argyrodite-type compound is a promising thermoelectric material which exhibits ultralow lattice thermal conductivity and high performance.
Abstract Most of the state‐of‐the‐art thermoelectric (TE) materials exhibit high crystal symmetry, multiple valleys near Fermi level, heavy constituent elements with small electronegativity differences, or complex structure. Typically, such general features have been well observed in those well‐known TE as Bi 2 X 3 ‐, SnX‐, and PbX‐based compounds (X = S, Se, Te). The performance is usually Te but it low for light S. However, there a great abnormality Cu X‐based which has much lower figure...
Abstract Flexible electronics ushers in a revolution to the industry 21st century. Ideally, all components of flexible electronic device including functional component shall comply with deformation ensure structural and integrity, imposing pressing need for developing room‐temperature strain‐tolerant semiconductors. To this end, there is long‐standing material dilemma: inorganic semiconductors are typically brittle at room temperature except size‐induced flexibility; by contrast, organic...
Abstract The flexible thermoelectric technique, which can convert heat from the human body to electricity via Seebeck effect, is expected provide a peerless solution for power supply of wearables. recent discovery ductile semiconductors has opened new avenue technology, but their factor and figure-of-merit values are still much lower than those classic materials. Herein, we demonstrate presence morphotropic phase boundary in Ag 2 Se-Ag S pseudobinary compounds. be freely tuned by adjusting...
Abstract The discovery of ductile Ag 2 (S, Se, Te) materials opens a new avenue toward high‐performance flexible/hetero‐shaped thermoelectrics. Specifically, the cubic‐structured are quite attractive by combining remarkable plasticity, decent thermoelectric figure merit ( zT ), and no phase transition above room temperature. However, such few understanding is inadequate on their mechanical properties. Enlightened high‐entropy principles, series pseudo‐ternary S‐Ag Se‐Ag Te alloys designed...
Grain boundary plays a vital role in thermoelectric transports, leading to distinct properties between single crystals and polycrystals. Manipulating the grain realize good polycrystals similar as those of is long-standing task, but it quite challenging. Herein, we develop liquid-phase sintering strategy successfully introduce Mg2Cu nano-sintering-aid into boundaries Mg3(Bi, Sb)2-based materials. The nano-aid helps enlarge average size 23.7 μm effectively scatter phonons, excellent...
Ultra-low thermal conductivity resulting from multiformity and fluctuation of Cu ordering in Cu<sub>2</sub>Se thermoelectric materials.
We demonstrate that the quality factor of Cu<sub>2</sub>Se<sub>1−x</sub>Te<sub>x</sub> solid solutions is higher than those most typical thermoelectric materials.
The crystal structure uniquely imparts the specific properties of a material, and thus provides starting point for any quantitative understanding thermoelectric properties. Cu 2− x Se is an intensely studied high performing, non-toxic cheap here first time, average β-Cu reported based on analysis multi-temperature single-crystal X-ray diffraction data. It consists Se–Cu layers with additional copper between every alternate layer. structural changes during peculiar zT enhancing phase...
Abstract Liquid‐like thermoelectric (TE) materials have the advantages of ultrahigh performance, low cost, and environment friendly, but their stability is greatly limited by possible Cu/Ag deposition under a large current and/or temperature gradient. The pratical application based on liquid‐like TE requires both high figure merit ( zT ) for energy conversion efficiency critical voltage good stability, they are very difficult to be simultaneously achieved in one material. In this work,...