A5100768579- Metal Extraction and Bioleaching
- Extraction and Separation Processes
- Minerals Flotation and Separation Techniques
- Laser Material Processing Techniques
- Nonlinear Optical Materials Studies
- Orbital Angular Momentum in Optics
- Perovskite Materials and Applications
- Silk-based biomaterials and applications
- Advancements in Battery Materials
- Luminescence and Fluorescent Materials
- Advanced Fiber Laser Technologies
- Plasmonic and Surface Plasmon Research
- Organic Light-Emitting Diodes Research
- Advanced Battery Materials and Technologies
- Advanced Sensor and Energy Harvesting Materials
- Quantum optics and atomic interactions
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Photonic and Optical Devices
- Supercapacitor Materials and Fabrication
- Gold and Silver Nanoparticles Synthesis and Applications
- Laser-Ablation Synthesis of Nanoparticles
- Diamond and Carbon-based Materials Research
- Corrosion Behavior and Inhibition
- Analytical Chemistry and Sensors
Ji Hua Laboratory
2020-2025
Advanced Energy (United States)
2025
Wuhan University of Technology
2019-2024
Beijing Polytechnic
2024
State Key Laboratory of Quantum Optics and Quantum Optics Devices
2022-2024
Shanxi University
2022-2024
Northwestern Polytechnical University
2023-2024
Jinan University
2023-2024
RE Hydrogen (United Kingdom)
2024
Hainan Normal University
2023
Abstract This article reviews recent progress leading to the generation of optical vortex beams. After introducing basics beams and their promising applications, we summarized different approaches for by discrete components laser cavities. We place particular emphasis on development planar phase plates, which are able engineer a spiral phasefront via dynamic or geometric in nanoscale, highlight independent operation these two phases leads multifunctional beam spin-orbit interaction. also...
The distribution of dopants in semiconductors can intrinsically determine the electronic structure and consequently absorbance, redox potential, charge-carrier mobility semiconductor photocatalysts. In contrast to most reported nitrogen-doped titania photocatalysts with some localized states intrinsic band gap small visible light absorption shoulders induced by inhomogeneous nitrogen doping near particle surface, we report here homogeneous substitution O N whole particles layered titanates....
The lossy nature of plasmonic wave due to absorption is shown become an advantage for scaling-up a large area surface nanotexturing transparent dielectrics and semiconductors by self-organized sub-wavelength energy deposition leading ablation pattern-ripples-using this nano-printing. Irreversible nanoscale modifications are delivered plasmon polariton (SPP) using: (i) fast scan (ii) cylindrical focusing femtosecond laser pulses high patterning throughput. mechanism ripple formation on ZnS...
Hexagonal boron nitride is a wide-band-gap van der Waals material that has recently emerged as promising platform for quantum photonics experiments. In this work, we study the formation and localization of narrowband emitters in large flakes (up to tens micrometers wide) hexagonal nitride. The can be activated as-grown by electron irradiation or high-temperature annealing, emitter probability increased ion implantation focused laser material. Interestingly, show are always localized at edges...
Abstract Botanical systems have evolved the intriguing ability to respond diverse stimuli due long‐term survival competition. Mimicking these dynamic behaviors has greatly advanced developments in wide fields ranging from soft robotics, precision sensors drug delivery and biomedical devices. However, realization of stimuli‐responsive components at microscale with high response speed still remains a significant challenge. Herein, miniature biomimetic 4D printing pH‐responsive hydrogel is...
Exciplex-forming hosts with thermally activated delayed fluorescence (TADF) provide a viable opportunity to unlock the full potential of yet-to-be improved power efficiencies (PEs) and stabilities all-fluorescent white organic light-emitting diodes (WOLEDs), but this, however, is hindered by lack stable blue exciplexes. Here, an advanced exciplex system proposed incorporating bipolar charge-transport π-spacers into both electron-donor (D) electron-accepter (A) increase their distance for...
As essential units in an artificial neural network (ANN), synapses have to adapt various environments. In particular, the development of synaptic transistors that can work above 125 °C is desirable. However, it challenging due failure materials or mechanisms at high temperatures. Here, we report a transistor working hundreds degrees Celsius. It employs monolayer MoS2 as channel and Na+-diffused SiO2 ionic gate medium. A large on/off ratio 106 be achieved 350 °C, 5 orders magnitude higher...
Abstract Aqueous Zn‐ion batteries are an attractive electrochemical energy storage solution for their budget and safe properties. However, dendrites uncontrolled side reactions in anodes detract the cycle life density of batteries. Grain boundaries metals generally considered as source above problems but we present a diverse result. This study introduces ultra‐high proportion grain on zinc electrodes through femtosecond laser bombardment to enhance stability metal/electrolyte interface. The...
Abstract Efficient calculation of the light diffraction in free space is great significance for tracing electromagnetic field propagation and predicting performance optical systems such as microscopy, photolithography, manipulation. However, existing methods suffer from low computational efficiency poor flexibility. Here, we present a fast flexible method computing scalar vector corresponding regimes using Bluestein method. The computation time can be substantially reduced to sub-second...
Abstract On‐chip microsupercapacitors (MSC) with facile fabrication procedures, high integration design, and superior performance are desired as an energy storage device for microelectronics. Hence, a novel procedure is proposed to fabricate asymmetric microsupercapacitor (AMSC), employing interwoven nanowire (NW) network electrodes of poly(3,4‐ethylenedioxythiophene) coated titanium oxynitride (P‐TiON) vanadium nitride (VN) NW cathode anode, respectively. The NWs mass loading offer...
Although sodium-ion batteries (SIBs) have high potential for applications in large-scale energy storage, their limited cycle life and unsatisfactory density hinder commercial applications. Here, a superior stable CoTe2/carbon anode, which CoTe2 nanoparticles are embedded freestanding N-doped multichannel carbon fiber (CoTe2@NMCNFs), with ultralong SIBs, is reported. Specifically, uniformly dispersed the matrix to inhibit its volume expansion agglomeration during desodiation/sodiation...
The inferior cycle lifespan and unsatisfactory energy density of traditional anode materials for sodium-ion batteries need to be improved toward actual application. Here, MOF-derived ultrafine ZnSe nanoparticles encapsulated within nitrogen-doped porous carbon nanofiber composites (ZnSe@NCNFs) are fabricated via in situ pyrolysis selenylation from electrospun PAN@ZIF-8 nanofibers. As an anode, the ZnSe@NCNF electrode displays outstanding sodium-storage performance superior cycling stability...
Because poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulfonate) (PEDOT:PSS) is water processable, thermally stable, and highly conductive, PEDOT:PSS its composites have been considered to be one of the most promising flexible thermoelectric materials. However, film prepared from commercial aqueous dispersion usually has very low conductivity, thus cannot directly utilized for TE applications. Here, a simple environmental friendly strategy via femtosecond laser irradiation without any...
A high-quality tin oxide electron transport layer (ETL) is a key common factor to achieve high-performance perovskite solar cells (PSCs). However, the conventional annealing technique prepare ETLs by continuous heating under near-equilibrium conditions requires high temperatures and long fabrication time. Alternatively, we present non-equilibrium, photoexcitation-induced passivation that uses multiple ultrashort laser pulses. The ultrafast photoexcitation following electron-electron...
Abstract Magnetic skyrmions are particle‐like topological magnetic textures that potential information carriers in future spintronics. An enormous body of research confirms their existence a broad range materials since first discovery 2009. To date, can not only be found asymmetric systems but also centrosymmetric ones. Notably, engineered multilayers promising structures for skyrmion‐based spintronics because they stabilize small‐sized at room temperature and facilitate electric...
Abstract A fast reverse intersystem crossing (RISC) remains an ongoing pursuit for multiresonance (MR) emitters but faces formidable challenges, particularly indolocarbazole (ICz) derived ones. Here, heavy‐atom effect is introduced first to construct ICz‐MR emitter using a sulfur‐containing substitute, simultaneously enhancing both spin–orbit and spin–vibronic coupling afford RISC with rate of 1.2 × 10 5 s −1 , nearly one order magnitude higher than previous maximum values. The also exhibits...
Utilization of structural colors produced by nanosized optical antennas is expected to revolutionize the current display technologies based on an inkjet or a pigmentation-based color printing. Meanwhile, versatile color-mapping strategy combining fast single-step single-substrate fabrication cycle with low-cost scalable operation still missing. We propose lithography-free pure approach direct local ablative reshaping gold film nanojoule (nJ)-energy femtosecond laser pulses. Plasmon-color...
We propose to use femtosecond direct laser writing technique realize dielectric optical elements from photo-resist materials for the generation of structured light purely geometrical phase transformations. This is illustrated by fabrication and characterization spin-to-orbital angular momentum couplers generating vortices topological charge 1 20. In addition, scalable allows obtaining microscopic macroscopic flat optics. These results thus demonstrate that 3D photopolymerization technology...
Ultrafast deposition of laser energy into noble-metal films yields irreversible mass redistribution and resolidified nanostructures with hidden features, which can strongly affect the optical response that is harnessed for applications in plasmonics nonlinear optics. A combination three surface probes reveals three-dimensional distributions induced by pulse, simulations show spatiotemporal dynamics nanoscale hydrodynamic flows. This approach allows quantitative prediction film thickness,...