A5005573471- 2D Materials and Applications
- Graphene research and applications
- Thermal Radiation and Cooling Technologies
- Metamaterials and Metasurfaces Applications
- MXene and MAX Phase Materials
- Perovskite Materials and Applications
- Conducting polymers and applications
- Thermal properties of materials
- Advanced Semiconductor Detectors and Materials
- Urban Heat Island Mitigation
- Traditional Chinese Medicine Studies
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Building Energy and Comfort Optimization
- Machine Learning in Materials Science
- Advanced Sensor and Energy Harvesting Materials
- Plasmonic and Surface Plasmon Research
- Biofield Effects and Biophysics
- Gold and Silver Nanoparticles Synthesis and Applications
- Chalcogenide Semiconductor Thin Films
- Random lasers and scattering media
- Electrochemical sensors and biosensors
- Surface and Thin Film Phenomena
- Liver Disease Diagnosis and Treatment
- Advanced Antenna and Metasurface Technologies
National University of Defense Technology
2013-2025
Chinese Academy of Sciences
2011-2024
Institute of Optics and Electronics, Chinese Academy of Sciences
2020-2024
Xiamen University
2024
Nanjing Tech University
2021-2022
Shanghai First Maternity and Infant Hospital
2022
The Synergetic Innovation Center for Advanced Materials
2021-2022
Chengdu University of Traditional Chinese Medicine
2019-2021
Weatherford College
2020
Credo Reference (United States)
2020
The year 2019 marks the 10th anniversary of first report ultrafast fiber laser mode-locked by graphene. This result has had an important impact on optics and continues to offer new horizons. Herein, we mainly review linear nonlinear photonic properties two-dimensional (2D) materials, as well their applications in efficient passive mode-locking devices lasers. Initial works significant progress this field, insights challenges 2D materials for lasers, are reviewed analyzed.
Abstract Multispectral complementary detection technologies have made single‐band camouflage materials ineffective, creating strong demand for multispectral compatible materials. Here, multiscale‐hierarchical metasurfaces (MHM) with large‐area low‐cost fabrication are proposed the first time to realize of dual‐band lasers, infrared and microwave. The MHM consists an all‐metallic metasurface array (AMMA) a microwave absorber. AMMA hinders lasers thermal detection, while absorber beneath is...
Superconducting layered transition metal dichalcogenides (TMDs) stand out among other superconductors due to the tunable nature of superconducting transition, coexistence with collective electronic excitations (charge density waves) and strong intrinsic spin-orbit coupling. Molybdenum disulphide (MoS2) is most studied representative this family materials, especially since recent demonstration possibility tune its critical temperature, Tc, by electric-field doping. However, just one...
Abstract Research on black phosphorus has been experiencing a renaissance over the last years, after demonstration that few-layer crystals exhibit high carrier mobility and thickness-dependent bandgap. Black is also known to be superconductor under pressure exceeding 10 GPa. The superconductivity due structural transformation into another allotrope accompanied by semiconductor-metal transition. No could achieved for in its normal orthorhombic form, despite several reported attempts. Here we...
Bi2 O2 Se is emerging as a photosensitive functional material for optoelectronics, and its photodetection mechanism mostly considered to be photoconductive regime in previous reports. Here, the bolometric effect discovered photodetectors. The coexistence of generally observed multiwavelength photoresponse measurements then confirmed with microscale local heating experiments. unique photodetectors may arise from change hot electrons during temperature rises instead photoexcited holes...
In this report, we propose a concept of lead immobilization to suppress the exposure risk by employing poly(acrylic acid) grafted carbon nanotubes (CNT-PAA) as dopants in preparation perovskite thin films. Due presence large amount carboxyl groups and self-bundling water insoluble CNTs, CNT-PAA exhibited high Pb2+-immobilization capability, allowing them retain components on substrates reduce lead(II) leaching below hazardous waste limit once occasionally exposed water. Moreover, PAA chains...
Recently, disordered metasurfaces have attracted considerable interest due to their potential applications in imaging, holography, and wavefront shaping. However, how emerge long-range ordered phase distribution remains an outstanding problem. Here, a general framework is proposed generate spatially homogeneous in-plane from metasurface, by engineering disorder parameters together with topology optimization. As proof-of-concept demonstration, all-dielectric supercell metasurface relatively...
Passive daytime radiative cooling (PDRC) materials with sustainable energy harvesting capability is critical to concurrently reduce traditional utilized for thermal comfort and transfer natural clean energies into electricity. Herein, a versatile photonic film (Ecoflex@BTO@UAFL) based on novel fluorescent luminescence color passive triboelectric piezoelectric effect developed by filling the dielectric BaTiO
We investigate the topology optimization of geometric phase metasurfaces for wide-angle and high-efficiency deflection, where adjoint-based multi-object approach is adopted to improve absolute efficiency while maintaining polarization conversion characteristic metasurfaces. show that, initially discrete with different materials working wavelengths, shapes gradually evolve from structures quasi-continuous arrangements increment iteration operations. More importantly, finally optimized...
Abstract Developing versatile systems that can concurrently achieve energy saving and generation is critical to accelerate carbon neutrality. However, challenges on designing highly effective, large scale, multifunctional photonic film hinder the concurrent combination of passive daytime radiative cooling (PDRC) utilization sustainable clean energies. Herein, a scalable (Ecoflex@ h ‐BN) with washable property excellent mechanical stability developed by combining scattering efficiency...
Growing uniform oxides with various thickness on TMDs is one of the biggest challenges to integrate into complementary metal oxide semiconductor (CMOS) logic circuits. Here, we report a layer-by-layer oxidation atomically thin MoTe2 flakes via ozone (O3) exposure. The MoOx film could be tuning atomic-level accuracy simply by varying O3 exposure time. Additionally, MoOx-covered shows hole-dominated transport behavior. Our findings point simple and effective strategy for growing homogenous...
The metal-insulator transition temperature Tc in VO2 is experimentally shown to be almost the same as a magnetic Tm characterized by an abrupt decrease susceptibility, suggesting evidence of underlying origin for both transitions. measurement susceptibility shows that it weakly increases on cooling range T > Tm, sharply decreases near and then unusually further cooling. A theoretical approach such unusual observations or below performed modeling electrons from each two adjacent V4+ ions...
Controllably tuned infrared emissivity has attracted great interest for potential application in adaptive thermal camouflage. In this work, we report a flexible multilayer graphene based device on porous polyethylene membrane, where the could be by ionic liquid intercalation. The Fermi level of surface shifts to high energy through intercalation, which blocks electronic transition below level. Thus, optical absorptivity/emissivity controlled Experimentally, was found from 0.57 0.41 after...
Abstract Passive daytime radiative cooling (PDRC), as a zero‐energy technology, has attracted wide attention. It achieves high reflectivity in the solar band by scattering incoming sunlight. According to Mie's theory, attaining elevated efficiency necessitates substantial refractive index disparity between matrix material and particles PDRC film. Here, study introduces barium titanate (BTO) nanoparticles particles, which have highest theoretical among dielectric reported literature. A...
Abstract The near-infrared (NIR) photoelectric properties of multilayer Bi 2 O Se nanofilms were systematically studied in this paper. Multilayer demonstrate a sensitive photo response to NIR, including high photoresponsivity (~ 101 A/W), quick time 30 ms), external quantum efficiency 20,300%), and detection rate (1.9 × 10 Jones). These results show that the device based on might have great potentials for future applications ultrafast, highly NIR optoelectronic devices.
There has been immense interest in the hierarchical design of structural composite materials as electrocatalysts with high performance for direct methanol fuel cells (DMFCs). Herein, we rationally designed and prepared a newly quaternary nanocomposite composed carbon nanotubes (CNTs), polyacrylic acid (PAA), SnO2 layers, PtRu alloys. In this multiple-phase boundary nanostructure, tiny-sized alloy particles are deposited highly dispersed form on robust CNT support owing to efficient...
Abstract Personal protective clothing is designed to safeguard medical personnel from highly infectious diseases. However, it often compromises comfort, especially when worn outdoors during epidemics like the global COVID‐19 outbreak. This can lead discomfort and even heatstroke. To tackle this issue, radiative cooling incorporated into personal by integrating hierarchically porous poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) membranes fabric. These possess a remarkable solar...
1 μm thick Si solar cells based on nanocone grating (NCG) with height of 100-800 nm and period 100, 500, 800 are numerically investigated through reflectivities, absorption enhancement factors, spectra, optical generation rates, ultimate efficiencies, diffraction angles. Compared the planar cell, observed in any NCG surface. Their mechanism varies incident wavelength range. When λ < 500 nm, antireflection their front surface dominates behavior due to stronger coefficients. 600...
Abstract Ultrathin graphite‐based materials have revolutionized optoelectronics through their multispectral and energy‐efficient tunability. However, narrow color range poses a challenge in applications requiring broad spectrum of colors for effective information delivery or aesthetic enhancement. Here, full‐color tunability is achieved ultrathin electrochromic devices using Fabry‐Perot (F‐P) nanocavities. By adjusting the optical properties ( n , k ) graphite lithium‐ion...
In general, there is a fundamental trade-off between the operational bandwidth and attainable absorption. So, obtaining broadband wave absorption of low reference standard such as 90% not very difficult. However, when trying to obtain higher 99%, will drop dramatically. Here, we demonstrate that near-perfect over 99% with 60% relative can be obtained utilizing single-layered nonstructured graphene loaded periodical dielectric wires. The mechanism originates from coupling Mie resonances in...
The authors introduce a framework for spatiotemporal interaction between passive metasurface and laser chaos, report the vector-polarization optical chaos with spatially heterogeneous polarization dynamics.