A5101649790- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Semiconductor Quantum Structures and Devices
- Quantum and electron transport phenomena
- Graphene research and applications
- Heusler alloys: electronic and magnetic properties
- Pulsars and Gravitational Waves Research
- Geophysics and Gravity Measurements
- Astrophysical Phenomena and Observations
- Immune Response and Inflammation
- Magnetic Properties and Applications
- Oral and Maxillofacial Pathology
- Nanowire Synthesis and Applications
- Inflammasome and immune disorders
- Strong Light-Matter Interactions
- Copper-based nanomaterials and applications
- Cell death mechanisms and regulation
- Perovskite Materials and Applications
- Endodontics and Root Canal Treatments
- Magnetic properties of thin films
- Astronomy and Astrophysical Research
- dental development and anomalies
Jinzhong University
2020-2025
Henan University
2022-2023
Beijing Institute of Technology
2015-2018
For their spintronic applications the magnetic and optical properties of diluted semiconductors (DMS) have been studied widely. However, exact relationships between interactions emission behaviors in DMS are not well understood yet due to complicated microstructural compositional characters from different growth preparation techniques. Manganese (Mn) doped ZnSe nanoribbons with high quality were obtained by using chemical vapor deposition (CVD) method. Successful Mn ion doping a single...
Using the tight-binding model, we studied electronic and optical properties of rectangular β12-borophene quantum dot (RBQD). We considered effects different lengths widths on energy levels spectra RBQD. As RBQD size increases, number with two sets degenerate (E1 E2) present. The degeneracy is closely related to width but not its length. In addition, multiple platforms have been formed. These significantly influence absorption spectra, level E2 playing an important role. Along x-axis,...
The micro-luminescence spectra of the diluted magnetic semiconductor (DMS) can reflect spin-exciton interaction and related relaxation process. Here micro-photoluminescence (micro-PL) PL lifetime measurements have been done on an individual ferromagnetic (FM)-coupled cobalt (Co) doped zinc selenide (ZnSe) nanowire. There occurs a double-peak profile in its near bandedge emission spectrum: first peak is from free exciton (FX) second comes polaron (MP). In their temperature dependent spectra,...
Spin-related emission properties have important applications in the future information technology; however, they involve microscopic ferromagnetic coupling, antiferromagnetic or ferrimagnetic coupling between transition metal ions and excitons, d state with phonons is not well understood these diluted magnetic semiconductors (DMS). Fe3+ doped ZnSe nanoribbons, as a DMS example, been successfully prepared by thermal evaporation method. Their power-dependent micro-photoluminescence (PL)...
Abstract The magnetic excitons in diluted semiconductor (DMS) have varied formats due to the inhomogeneous phases out of doping concentration and/or structural relaxations or defects. Here high quality cobalt-doped zinc blende ZnSe nanoribbons (NRs) were synthesized, showing bright and color-variable emissions from blue, yellow a little mixed white colors. Their power temperature dependent micro-photoluminescence (PL) spectra been obtained which two emission bands, one exciton band near...
Diluted magnetic semiconductor (DMS) nanostructures are promising platform to modulate carriers and spins for new information devices. Here we report that the high quality pure CH3NH3PbBr3 microrods Mn doped have been prepared by solution method in which exciton polarons (EMP) formed microrods, a single mode lasing phenomenon from collective EMP microrod detected when excited fs pulse laser. This finding helps understand spin interactions pave ways realization of type bosonic
Transition metal (TM) doped II-VI semiconductors have attracted great attention due to their luminescence and diluted magnetism. In this study, the Fe3+-doped ZnSe nanobelts (NBs) were grown by a facile CVD method. The surface morphology observed via SEM is smooth clean elemental composition measured EDS confirms that Fe3+ ions incorporated into NBs successfully. micro-Raman scattering spectra demonstrate as-prepared zinc blende structure. Furthermore, Raman of compared with those pure...
Co(II) doped ZnTe nanowires are prepared by a thermal evaporation method. The power and temperature dependent micro-photoluminescence spectra of single nanowire demonstrate the double bands near its band edge, ferromagnetism behavior for these is identified. occurrence excitonic magnetic polaron (EMP) can account second emission higher binding energy ferromagnetic coupling. This EMP formation in nanostructure will facilitate to realize modulation on confined excitons find new applications...
Two-dimensional (2D) ferromagnetism with robust room-temperature has sparked intense interest for future miniature information storage devices. However, most 2D ferromagnetic materials have a low Curie temperature. Here, by using density functional theory, two rare-earth monolayers, the GdScSi monolayer and GdScGe monolayer, were predicted, in which these monolayers exhibit orders large magnetic moments of approximately 7 μ B /Gd. Monte Carlo simulations predict temperatures 470 K 495...
Moderate band gap and high stabilities are key properties in (opto)electronic devices application. Based on first-principles calculations, we predicted an ultrathin two-dimensional (2D) semiconductor, namely, a ScSI nanosheet, with tunable electronic stabilities. The monolayer is indirect semiconductor of 2.59 eV, significantly, this can shift from to direct under small strains. Moreover, the cleavage energy lower than that graphene, possesses dynamical, thermal, mechanical stabilities,...
BACKGROUND Periodontal ligament stem cells (PDLSCs) possess characteristics of multi-potential differentiation and immuno-modulation, PDLSCs-mediated periodontal tissue regeneration is regarded as a hopeful method for periodontitis treatment. Recent studies demonstrated that RIP3 caspase8 regulate bacteria-induced innate immune response programmed necrosis, which also called necroptosis. This study aimed to determine the role RIP3/Caspase8 signal pathway on necroptosis PDLSCs under...
Two-dimensional (2D) material is the promising for next-generation information technology. The recently discovered intrinsic magnetic crystals have simulated a renaissance in 2D spintronics, which provides an ideal platform exploring novel physical phenomena. However, current experimental trial-and-error methods discovering new spintronic are still very expensive and challenging. In contrast, based on well-developed first-principles calculations, computationally designing materials more...
Spin wave dynamics form the foundation of spin-torque oscillator (STO) modulation. In addition to uniform spin mode with vector k = 0, multiple modes different vectors and frequencies coexist in nanoscale STO. To characterize these interactions between them, distribution evolution intensity space need be investigated together dispersion individual mode, stressing energy degeneracy. this end, using micromagnetic simulation, we studied discrete a STO structure enhancing propagation. Simulation...
Zinc selenide (ZnSe) is a direct band gap semiconductor material with of 2.7 eV at room temperature, and very promising blue light emitting material. However, the ZnSe nanomaterials grown by usual Au-catalyzed chemical vapor deposition (CVD) method are prone to cause defects in material, its luminescence spectra generally have strong yellow emission, which seriously affects application devices. The paper proposes simple for preparing light-emitting nanowires. Adding small amount SnO2 source...