A5101427888- Perovskite Materials and Applications
- Irrigation Practices and Water Management
- Quantum Dots Synthesis And Properties
- Seismic Imaging and Inversion Techniques
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- Seismic Waves and Analysis
- Heat Transfer and Optimization
- Drilling and Well Engineering
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Chalcogenide Semiconductor Thin Films
- Advanced Fiber Optic Sensors
- Soil and Unsaturated Flow
- Aerogels and thermal insulation
- Silicon Carbide Semiconductor Technologies
- Copper-based nanomaterials and applications
- Metal and Thin Film Mechanics
- Advanced Fiber Laser Technologies
- Plant Water Relations and Carbon Dynamics
- Mesoporous Materials and Catalysis
- Photonic and Optical Devices
- Hydraulic Fracturing and Reservoir Analysis
- Soil erosion and sediment transport
- Hydraulic flow and structures
North China Electric Power University
2025
China South Industries Group (China)
2024
Zhejiang Sci-Tech University
2024
University of California, Davis
2014-2024
University of Science and Technology Beijing
2013-2024
China Academy of Engineering Physics
2004-2024
Qingdao University
2018-2024
Dalian Jiaotong University
2024
Institute of Electronics
2024
Zhejiang University
2024
Abstract Heterogeneity of rock's fabric can induce heterogeneous distribution immiscible fluids in natural reservoirs, since the lithological variations (mainly permeability) may affect fluid migration geological time scales, resulting patchy saturation fluids. Therefore, and inhomogeneities both wave propagation. To model effects (attenuation velocity dispersion), we introduce a double double‐porosity model, where pores saturated with two different overlap having dissimilar...
Anisotropic tough hydrogels are of great importance in biomedical fields. Tough poly(vinyl alcohol) (PVA) with anisotropic porous structure and mechanical properties obtained a facile directional freezing–thawing (DFT) technique. The PVA gels have an aligned structure, long channels the direction parallel to freezing pores similar sizes perpendicular direction. degree crystallinity freeze-dried increases number DFT cycles, it can reach 55.8%. excellent properties, as exhibited by high...
Abstract Interfacial ligand passivation engineering has recently been recognized as a promising avenue, contributing simultaneously to the optoelectronic characteristics and moisture/operation tolerance of perovskite solar cells. To further achieve win‐win situation both performance stability, an innovative conjugated aniline modifier (3‐phenyl‐2‐propen‐1‐amine; PPEA) is explored moderately tailor organolead halide perovskites films. Here, PPEA presents “quasi‐coplanar” rigid geometrical...
Abstract Stability issue is one of the major concerns that limit emergent perovskite light‐emitting diodes (PeLEDs) techniques. Generally, ion migration considered as most important origin PeLEDs degradation. In this work, an all‐inorganic device architecture, LiF/perovskite/LiF/ZnS/ZnSe, proposed to address imperative problem. The inorganic (Cs 1− x Rb ) y K PbBr 3 optimized with achieving a photoluminescence quantum yield 67%. Depth profile analysis X‐ray photoelectron spectroscopy...
The energy level alignment and carrier mobility of the charge transport layer are crucial importance for electron extraction in planar heterojunction perovskite solar cells (PSCs).
We demonstrate an all-fiber Tm 3+ -doped silica fiber laser operating at a wide selectable wavelength range by using different Bragg gratings (FBGs) as selection elements.With specifically designed high reflective (HR) FBG and the end output coupler, lasing in from 1975 nm to 2150 with slope efficiency of >30% can be achieved.By employing low (LR) obtainable wavelengths were extended between 1925 2200 which is reported longest lasers.Furthermore, array cavity inducing bend loss adjacent FBGs...
Abstract Formamidinium (FA)‐based lead iodide perovskites have emerged as the most promising light‐absorber materials in prevailing perovskite solar cells (PSCs). However, they suffer from phase‐instability issue ambient atmosphere, which is holding back realization of full potential FA‐based PSCs context high efficiency and stability. Herein, tetraethylorthosilicate hydrolysis process integrated with solution crystallization perovskites, forming a new film structure individual grains...
Blue-emitting materials and their light-emitting diodes (LEDs) are always challenging in lighting display applications. Recently, perovskite LEDs (PeLEDs) with efficient stable green/red emission have made great progress, where external quantum efficiency (EQE) over 20% has been reached. However, it is still a big challenge to realize blue PeLEDs high mainly because of the poor film quality unreasonable device structure. Herein, cocktail strategy, that is, multication...
Vehicular mobile crowdsensing (MCS) enables many smart city applications. Ridesharing vehicle fleets provide promising solutions to MCS due the advantages of low cost, easy maintenance, high mobility, and long operational time. However, as nondedicated sensing platforms, first priorities these vehicles are delivering passengers, which may lead poor coverage quality. Therefore, help derive good (large balanced) quality, an actuation system is required dispatch with a limited amount monetary...
Abstract Laboratory experiments on partially saturated rocks show that seismic attenuation can be significant. The main mechanism, wave‐induced local fluid flow (WILFF), is affected by the spatial distribution, especially in conditions of patchy saturation at different scales. We propose a theory to obtain properties based fractal (self‐similar) patches, leading an effective frequency‐dependent modulus. model combines differential medium and Biot‐Rayleigh theories, where patches are...
Epitaxial heterostructures of colloidal lead halide perovskite nanocrystals (NCs) with other semiconductors, especially the technologically important metal chalcogenides, can offer an unprecedented level control in wavefunction design and exciton/charge carrier engineering. These NC are ideal material platforms for efficient optoelectronics applications. Existing methods, however, only yield random connections distributions two components. The lack epitaxial relation uniform geometry hinders...
Tunable optical delay lines have many applications for high-performance switching and signal processing. Slow light has emerged as an enabling technology achieving continuously tunable delays. Delay reconfigurability opens up a whole new field of nonlinear processing using slow light. In this paper, the authors review recent advances in slow-light-based processing, with focus on data fidelity after traversing elements. The concept slow-light-induced pattern dependence is introduced shown to...
Solution-processed organic–inorganic halide perovskite (OIHP) thin films typically contain fine, randomly oriented grains and a high-density grain-boundary network, which are unfavorable for key film functions including charge transport environmental stability. Here, we report new chemical route achieving CH3NH3PbI3 (MAPbI3) OIHP comprising large, uniaxially an ultralow-density network. This starts with metastable liquid-state precursor phase, MAPbI3·MACl·xCH3NH2, converts to MAPbI3·MACl...
Inorganic cesium lead halide perovskite has been successfully applied in the optoelectronic field due to its remarkable optical gain properties. Unfortunately, conventional solution-processed CsPbX3 films suffer unavoidable pinhole defects and poor surface morphology, severely limiting their performance on amplified spontaneous emission (ASE) lasing applications. Herein, a dual-source thermal evaporation approach is explored achieve uniform high-coverage polycrystalline thin film. It was...
Recently, perovskite/Si devices have attracted enormous interest as an ideal technology for tandem cells, particularly due to the attributes from perovskite cell including low temperature processibility, tunable optical bandgap, and high open circuit voltage. Although solution process is considered be cost effective more widely adoptable subcell, best of our knowledge, there has been no successful demonstration resulting performance two‐terminal cells. In this manuscript, employed fabricate...
Abstract Graphene composite fibers are of great importance in constructing electrode materials with high flexibility and conductivity for energy storage electronic devices. Integration multifunctional metal–organic frameworks (MOFs) into graphene fiber scaffolds enables novel functions enhanced physical/chemical properties. The close‐packed aligned sheets along the porous MOF‐derived structures can achieve excellent lithium performance through synergetic effects. In this work, a facile...
One-step conversion of syngas to aromatics (STA) over an oxide–zeolite bifunctional catalyst is promising as alternative route for aromatic production. Control distribution and enhancement benzene, toluene, xylene (BTX) selectivity are still a big challenge. Decoupling the complex reaction network, relative activity aromatization alkylation on ZSM-5 determines distribution. Herein, STA was studied Cr2O3/ZSM-5 reveal influence zeolite morphology parameters Using "substitution ratio ring"...
Abstract Two compatible donors (PBDB‐T and PTB7‐Th) two miscible acceptors (ITIC FOIC) are employed to deliver a parallel‐alloy morphology model in non‐fullerene‐based quaternary organic solar cells. PBDB‐T PTB7‐Th form parallel link with slight adjustment of molecular packing into enhanced face‐on crystallites while ITIC disperses discontinuous FOIC microcrystal regions continuous ordered alloy‐like acceptor phases. Characterization blend highlights the model—enabled by introduction ITIC,...