A5100437565- Semiconductor Quantum Structures and Devices
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Quantum Dots Synthesis And Properties
- Magnetic and transport properties of perovskites and related materials
- Advanced Semiconductor Detectors and Materials
- Advanced Thermoelectric Materials and Devices
- Electronic and Structural Properties of Oxides
- Chalcogenide Semiconductor Thin Films
- Physics of Superconductivity and Magnetism
- Semiconductor materials and devices
- Semiconductor Lasers and Optical Devices
- Advanced Condensed Matter Physics
- 2D Materials and Applications
- Hydrocarbon exploration and reservoir analysis
- Superconductivity in MgB2 and Alloys
- Industrial Technology and Control Systems
- ZnO doping and properties
- Geological Studies and Exploration
- Iron-based superconductors research
- Copper-based nanomaterials and applications
- Advanced Sensor and Control Systems
- Quantum and electron transport phenomena
- Graphene research and applications
- Ga2O3 and related materials
Hebei University
2016-2025
Research Institute of Petroleum Exploration and Development
2014-2021
Tianjin Normal University
2021
Baoding University
2015-2017
Shanghai Ocean University
2015
Beijing Union University
2009-2013
Pennsylvania State University
2008
Beijing Institute of Petrochemical Technology
2005
Institute of Physics
2003-2004
Chinese Academy of Sciences
2004
Solar-heating catalysis has the potential to realize zero artificial energy consumption, which is restricted by low ambient solar heating temperatures of photothermal materials. Here, we propose concept using heterostructures black materials (such as Bi2Te3) and infrared insulating (Cu) elevate temperatures. Consequently, heterostructure Bi2Te3 Cu (Bi2Te3/Cu) increases 1 sun-heating temperature from 93 °C 317 achieving synergy 89% absorption 5% radiation. This strategy applicable for various...
A high-precision sedimentary environment study of the Lower Silurian Longmaxi Formation is an important subject for shale gas exploration and development in Sichuan Basin its surrounding areas. On basis outcrops drilling data, isochronous stratigraphic framework was built according to a particular graptolite zone marker bed, lithofacies, paleontology, calcareous content, well logging, geochemistry other geologic information were combined describe microfacies sequence, evolution process high...
Abstract Metal halide perovskites (MHPs) are commonly used in polarization‐sensitive photodetectors (PDs) for applications such as polarization imaging, remote sensing, and optical communication. Although various methods exist to adjust the photocurrent, a universal effective approach continuous control of MHPs’ optoelectronic polarized properties is lacking. A strategy electrically modulate ratio (PR) self‐powered PDs using ferro‐pyro‐phototronic effect (FPPE) 2D presented. By varying...
The layered ternary PbBi2Te4 is regarded as a promising thermoelectric material due to its intricate crystal structure. However, current research on primarily focuses theoretical calculations and predictions, with limited investigations conducted actual transport properties. In this study, we synthesized the single-phase compound using high-temperature melting method. findings indicate that exhibits significant anisotropic properties pronounced bipolar diffusion effect, which can be...
2D layered metal halide perovskites (MHPs) are a potential material for fabricating self-powered photodetectors (PDs). Nevertheless, MHPs produced via solution techniques frequently exhibit multiple quantum wells, leading to notable degradation in the device performance. Besides, wide band gap limits their broad-band photodetection. Integrating narrow-band materials with perovskite matrices is viable strategy PDs. In this study, use of methylamine acetate (MAAc) as an additive precursors can...
The Sichuan Basin, a hotspot and one of the most successful areas for shale gas exploration development, can largely reflect have big say in future prospect China. Through an overall review on progress development we obtained following findings: (1) Basin has experienced marine terrestrial depositional evolution, resulting deposition three types organic-matter-rich shales (i.e. marine, transitional, terrestrial), occurrence six sets favorable enrichment strata Sinian Doushantuo Fm, Cambrian...
The stratigraphic distribution and lithofacies features of the Guanyinqiao Member Upper Ordovician Wufeng Formation around Sichuan Basin were studied based on data drilling, outcrops, rock minerals, geochemistry logging. is generally dominated by sea-level variation. This formation in conformable contact with overlying underlying formations inside locally outside basin lost basin. usually composed deep-water siliceous shale calcareous facies, similar to those lithologies basin; shallow marl...
Lead sulfide (PbS) is a promising thermoelectric material due to its high availability, thermal stability, and cost-efficiency, with research predominantly aiming enhance carrier concentration through heavy doping for optimal ZT values at temperatures. However, this approach often results in suboptimal performance ambient temperature, significantly constraining applicability cooling technologies. In work, the of n-type PbS optimized by incorporating trace amounts InBi. Due low concentration,...
Photo-oxidation of methane (CH4) using hydrogen peroxide (H2O2) synthesized in situ from air and water under sunlight offers an attractive route for producing green methanol while storing intermittent solar energy. However, commonly used aqueous-phase systems, photocatalysis efficiency is severely limited due to the ultralow availability CH4 gas H2O2 intermediate at flooded interface. Here, we report atomically modified metal-organic framework (MOF) membrane nanoreactor that promotes direct...
InSb is a promising mid-temperature thermoelectric material, and its n-type properties have been widely studied. For device applications, it necessary to p-type counterparts. Here, we report the realization of with enhanced performance via Cd doping. A high-power factor 1.91 × 10−3 W m−1 K−2 obtained in In0.93Cd0.07Sb at 723 K due increased carrier concentration. Moreover, lattice thermal conductivity decreased 2.0 K−1 owing significant multiscale phonon scattering suppressed bipolar...
Resonant level engineering is an effective strategy to increase the Seebeck coefficient of thermoelectric semiconductors for high performance. Herein, we report a significant enhancement performance PbSnGeTe3 over wide temperature region through In doping induced resonant level. Due simultaneously strengthened mass by inducing levels nearby Fermi and decreased carrier concentration, considerably improved obtained in In-doped thereby greatly increased power factor. The concentrations...
A hybrid nanostructure is constructed with self-assembled GaSb/GaAs quantum dots (QDs) coupling to an In 0.125 Ga 0 . 875 As/GaAs well (QW) through a 4.5 nm GaAs thin spacer. This dot-well (QDW) structure retains the characteristics of type II band alignment while enabling flexibility in engineering energy levels by independently controlling configuration QDs, QW, and spacer layer. Photoluminescence measurements prove that this has several advantages comparison containing QDs only. These...
Transparent thermoelectric films have attracted much interest due to the unusual coexistence of and optical transparency in a single device. Moreover, many devices, such as implantable electronic chip sensors, localized refrigeration are intrinsically irregular shapes. Therefore, exploration for flexible transparent power generator (F-TTEG) is on rise. In this study, we develop n-type CdO polyimide (PI) substrate, which exhibit outstanding flexibility, maintaining 90% 99% their original...
Bi-Sb alloy, as a promising thermoelectric material at cryogenic temperatures, has seen stagnant progress due to challenges in understanding the transport behaviors of energy carriers, and difficulties synthesizing high-homogeneity, large-grain samples. In this study, an inherent electron-phonon decoupling is revealed using first-principles calculations based on virtual crystal approximation. The mean free path dominant electrons (λele ~ 103 nm) found two orders magnitude larger than that...
Spin state controlling has always been a focus of intensive studies due to its importance for novel effect exploration and information technology. Complex oxides with competitive mechanisms are suitable objects study this purpose their susceptibility external stimuli. Perovskite cobaltate La1-xSrxCoO3 is one such oxides. Combined effects lattice strains hole-doping have studied the LSCO films 0 ≤ x 0.5. It found that strain, either tensile or compressive, destabilizes ferromagnetic (FM)...