A5013007130- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Nematode management and characterization studies
- Thermal properties of materials
- Entomopathogenic Microorganisms in Pest Control
- Topological Materials and Phenomena
- Crystallization and Solubility Studies
- Graphene research and applications
- Fungal Biology and Applications
- Thermal Expansion and Ionic Conductivity
- Fungal and yeast genetics research
- 2D Materials and Applications
- Perovskite Materials and Applications
- X-ray Diffraction in Crystallography
- Thermal Radiation and Cooling Technologies
- Microbial Natural Products and Biosynthesis
- Rare-earth and actinide compounds
- Chemical synthesis and alkaloids
- Advanced Condensed Matter Physics
- Phase-change materials and chalcogenides
- Plant-derived Lignans Synthesis and Bioactivity
- Trace Elements in Health
- Iron-based superconductors research
- Probiotics and Fermented Foods
- Antimicrobial Peptides and Activities
Hefei National Center for Physical Sciences at Nanoscale
2022-2024
University of Science and Technology of China
2022-2024
Beijing Normal University
2017-2024
Shanghai Institute of Microsystem and Information Technology
2019-2024
Chinese Academy of Sciences
2018-2024
University of Chinese Academy of Sciences
2021-2024
Yunnan Center for Disease Control And Prevention
2021-2023
Yunnan University
2018-2022
Kunming Institute of Botany
2018
Multiband convergence has attracted significant interest due to its positive effects on further improving thermoelectric performance. However, the current research mainly focuses two- or three-band in lead chalcogenides through doping and alloying. Therefore, exploring a new strategy facilitate more-band instructive significance practical value research. Herein, we first propose high-entropy achieve four-band for optimizing Taking AgSbPbSnGeTe5 as an example, found that emergence of occurs...
Three-valence-band ( i.e. , L, Σ and Λ) charge transport multiple-scale defects were simultaneously achieved in p-type SnTe through dual incorporation of MnCdTe 2 Ge, which contributed to a record-high ZT ∼1.97 at 900 K.
Thermoelectric copper selenides are highly attractive owing to not only their constituent nontoxic, abundant elements but also ultralow liquid-like lattice thermal conductivity (κlat). For the first time, promising thermoelectric properties of new KCu5Se3 reported herein, showing a high power factor (PF = 9.0 μWcm–1 K–2) and an intrinsically κlat 0.48 Wm–1 K–1. The doped K1–xBaxCu5Se3 (x 0.03) realizes figure-of-merit ZT 1.3 at 950 K. crystallographic structure allows complex dynamics that...
The discovery of low-cost, less toxic, and earth-abundant thermoelectric materials is a great challenge. Herein, with the aid unique safe boron-chalcogen method, we discover new tetragonal α-CsCu5Se3, featuring previously unrecognized structure in ternary family Cs/Cu/Se. constructed by Chinese-knot-like Cu8Se8 building unit that further linked into 3D network. α-CsCu5Se3 exhibits thermal stability superior to recently established Cu2-xSe CsAg5Te3 suffering unfavorable phase transitions....
Regulators of G protein signaling (RGSs) are proteins that negatively regulate signal transduction. In this study, seven putative RGSs were characterized in the nematode-trapping (NT) fungus, Arthrobotrys oligospora. Deleting Rgs genes significantly increased intracellular cAMP levels, and caused defects mycelia growth, stress resistance, conidiation, trap formation, nematocidal activity. particular, ΔAoFlbA mutant was unable to produce conidia traps. Transcriptomic analysis showed amino...
Crystalline solids that exhibit inherently low lattice thermal conductivity (κlat) have attracted a great deal of attention because they offer the only independent control for pursuing high thermoelectric figure merit (ZT). Herein, we report successful preparation CsCu4Q3 (Q = S (compound 1), Se 2)) with aid safe and facile boron-chalcogen method. The single-crystal diffraction data confirm P4/mmm hierarchical structures built up by mixed-valence [(Cu+)4(Q2-)2](Q-) double anti-CaF2 layer...
Abstract We report a Zintl phase thermoelectric material, coarse grain‐In 0.99 Ga 0.01 Te, achieving ZT peak of 1.2 at 648 K and an average =0.8 in 300–650 K, which outperforms all the known InTe‐based materials to date. The synergistic optimization electronic property phonon transport are achieved by purification grain boundary scattering, together with Ga‐doping‐induced weak phonon‐electron coupling, enhances carrier mobility concentration simultaneously consequently gives remarkably...
ConspectusSeeking solids with low lattice thermal conductivity (κl) for energy conversion is of great significance. However, the extrinsic mechanisms low-κl like endotaxial precipitates or grain boundary engineering cannot arbitrarily scatter low-frequency phonons, since there a limit scattering length, below which vibrations no longer carry phonon heat. Alternatively, intrinsic provide approaches to reduce κl at atomistic level by manipulating structure and compositions, such as dispersion...
Four new compounds with the general formula RECuTe<sub>2</sub> and influence of electronegativity rare-earth metals on thermoelectric properties are reported for first time.
Cu2S, featuring low cost, nontoxicity, and earth abundance, has been recently recognized as a high efficiency thermoelectric (TE) material. However, before reaching the maximum of figure merit ( ZT), Cu2S undergoes three phase transformations starting at 370 K, which give rise to severe problems, such possible decomposition reliability. Herein, we discover CsCu5S3 with transformation 823 is significantly higher than K value Cu2S. Single crystal diffraction data reveal that its two phases are...
The two-dimensional (2D) honeycomb lattice has attracted intensive research interest due to the appearance of Dirac-type band structures as consequence two sublattices in structure. Introducing strong spin-orbit coupling (SOC) leads a gap opening at Dirac point, transforming into 2D topological insulator platform for quantum spin Hall effect (QSHE). In this work, we realize honeycomb-structured film with tellurium, heaviest nonradioactive element Group VI, namely, tellurene, via molecular...
An endophytic fungus, Chaetomium sp. YMF432, was isolated from Huperzia serrata (Thunb. ex Murray) Trev. and subjected to phytochemical investigation based on its special environment. From the extracts of fermentation solid strain YMF 432, eight compounds including 1-O-methylemodin (1), 5-methoxy-2-methyl-3-tricosyl-1,4-benzoquinone (2), 4,8-dihydroxy-1-tetralone (3), (3β,5α,6α, 22E)-3-hydroxy-5,6-epoxy-7-one-8(14),22-dien-ergosta (4), ergosta-4,6,8(14),22-tetraen-3-one (5), β-sitostenone...
A series of Sr(Co$_{1-x}$Ni$_x$)$_2$As$_2$ single crystals was synthesized allowing a comprehensive phase diagram with respect to field, temperature, and chemical substitution be established. Our neutron diffraction experiments revealed helimagnetic order magnetic moments ferromagnetically (FM) aligned in the $ab$ plane wavevector $q=(0,0,0.56)$ for $x$ = 0.1. The combination angle-resolved photoemission spectroscopy (ARPES) measurements show that tuning flat band $d_{x^2-y^2}$ orbital...
Phospholipase C (PLC) is a hydrolase involved in signal transduction eukaryotic cells. This study aimed to understand the function of PLC nematode-trapping fungus Arthrobotrys oligospora.Orthologous (AoPLC2) A. oligospora was functionally analysed using gene disruption and multi-phenotypic analysis. Disrupting Aoplc2 caused deformation partial hyphal cells (about 10%) conidia 50%), decreased number nuclei both cells, increased accumulation lipid droplets. Meanwhile, sporulation-related genes...
Phosphodiesterases are essential regulators of cyclic nucleotide signaling with diverse physiological functions. Two phosphodiesterases, PdeH and PdeL, have been identified from yeast filamentous fungi. Here, the orthologs PdeL were characterized in a typical nematode-trapping fungus Arthrobotrys oligospora by gene disruption phenotypic comparison. Deletion AopdeH caused serious defects mycelial growth, conidiation, stress response, trap formation, nematicidal efficiency compared to...
Controlling lattice vibrations to obtain intrinsic low thermal conductivity play a critical role in management of electronic and photonic devices, energy converters, insulation, which necessitates exploring new compounds thorough understanding their chemical structure, bonding, dynamics. Herein, chalcogenide, Ga6 Cr5 Se16 , shows κlat crystallizes the monoclinic phase (C2/m) with stacked inverse GaSe4 layers (g'), close-packed Cr3+ Se6 (c), (g) loosely-stacked Cr2+ (c') along c-axis. In this...
An endophytic fungus, Colletotrichum sp. F168, was isolated from plant Huperzia serrata (Thunb. ex Murray) Trev. and subjected to phytochemical investigation. Nine compounds including two new structures were obtained SDA solid fermentation products of strain which elucidated by extensive spectroscopic analyses, 1 D- 2 D-NMR, HR-MS experiments. The acetylcholinesterase inhibitory activity 1-2 tested in vitro. Two didn't show evident activity.
Abstract We report a Zintl phase thermoelectric material, coarse grain‐In 0.99 Ga 0.01 Te, achieving ZT peak of 1.2 at 648 K and an average =0.8 in 300–650 K, which outperforms all the known InTe‐based materials to date. The synergistic optimization electronic property phonon transport are achieved by purification grain boundary scattering, together with Ga‐doping‐induced weak phonon‐electron coupling, enhances carrier mobility concentration simultaneously consequently gives remarkably...