A5065087972- Plasmonic and Surface Plasmon Research
- Photonic and Optical Devices
- Photonic Crystals and Applications
- Metamaterials and Metasurfaces Applications
- Ferroelectric and Piezoelectric Materials
- Conducting polymers and applications
- Silicon Nanostructures and Photoluminescence
- Acoustic Wave Resonator Technologies
- Organic Electronics and Photovoltaics
- Optical Coatings and Gratings
- Thermal Radiation and Cooling Technologies
- GaN-based semiconductor devices and materials
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Phase-change materials and chalcogenides
- Thin-Film Transistor Technologies
- Advanced Battery Technologies Research
- ZnO doping and properties
- Semiconductor materials and devices
- Hydrogen Storage and Materials
- Photorefractive and Nonlinear Optics
- Surface Modification and Superhydrophobicity
- Gold and Silver Nanoparticles Synthesis and Applications
- Organic Light-Emitting Diodes Research
- Silicone and Siloxane Chemistry
Zhejiang University
2015-2025
State Key Laboratory of Modern Optical Instruments
2014-2025
University of Shanghai for Science and Technology
2017-2023
Aerospace Research Institute of Materials and Processing Technology
2020-2023
Shandong University of Technology
2021
State Key Laboratory of Automotive Simulation and Control
2020
Jilin University
2020
State Grid Corporation of China (China)
2019
Nanjing Tech University
2004-2019
Hangzhou Academy of Agricultural Sciences
2018
Ionic liquids thermodynamically compatible with Li metal are very promising for applications to rechargeable lithium batteries. 1-methyl-3-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide is screened out as a particularly ionic liquid in this study. Dimensionally stable, elastic, flexible, nonvolatile polymer gel electrolytes (PGEs) high electrochemical stabilities, conductivities and other desirable properties have been synthesized by dissolving imide salt (LiTFSI) then mixing the...
A highly stable water-based superhydrophobic coating was developed by a simple spraying technique using low-cost and readily available non-fluorinated material system.
Two spatially and spectrally resolved narrowband absorbers based on 2D grating nanostructures (polymethylmethacrylate (PMMA) gold grating) metallic films are designed, fabricated, characterized. For PMMA a film, the measured absorption bandwidth is 12 nm with nearly 80% at normal incidence. The transverse electric (TE) localized mode shows calculated 3.5° angular width. magnetic (TM) resonant supports both lattice mode. TM width of 0.75° exhibits large wavelength‐angle sensitivity 15 per...
Abstract Reconfigurable silicon photonic devices are widely used in numerous emerging fields such as optical interconnects, neural networks, quantum computing, and microwave photonics. Currently, phase change materials (PCMs) have been extensively investigated promising candidates for building switching units due to their strong refractive index modulation. Here, nonvolatile multilevel of with Ge 2 Sb Te 5 (GST) is demonstrated In O 3 transparent microheaters that compatible diverse material...
Transparent conductive oxides (TCOs) have been widely used as an important component of optoelectronic devices. They are required to exhibit high performance in both visible‐range transparency and electronic conductivity simultaneously. In near infrared (NIR) wavelength, these highly doped semiconductor oxide materials a drop their real part dielectric permittivity from positive negative. other words, the epsilon‐near‐zero (ENZ) frequency TCO is located NIR spectral regime. On hand,...
In this work, phase change chalcogenide Ge2Sb2Te5 (GST) thin films were fabricated by magnetron sputtering. The optical properties, especially the constants (refractive index and extinction coefficient), of such alloys systematically studied investigating their thermally photo-thermally induced switching between different phases. results show that GST are highly tunable in microstructure constants, either post-annealing at 160 °C, 200 250 °C 350 respectively, or laser irradiation 1 mW, 3 5...
Voice morphing is a technique for modifying source speaker's speech to sound as if it was spoken by some designated target speaker. The core process in voice system the transformation of spectral envelope speaker match that and linear transformations estimated from time-aligned parallel training data are commonly used achieve this. However, naive application combined with necessary pitch duration modifications will result noticeable artifacts. This paper studies approach investigates these...
Nanostructured semiconductors are one of the most potent candidates for matrix-free laser desorption/ionization mass spectrometric (LDI-MS) analysis low-molecular-weight molecules. Herein, enhanced photoinduced electron transfer and LDI on tip a vertical silicon nanowire (SiNW) array were investigated. Theoretical simulation detection indigo isatin molecules in negative ion mode revealed that electric field can be end SiNWs, thereby promoting energy to analytes adsorbed SiNWs. On basis this...
<title>Abstract</title> Traditional metal and n–type doped semiconductor materials serve as emerging epsilon–near zero (ENZ) materials, showcasing great potential for nonlinear photonic applications. However, a significant limitation such is the lack of versatile ENZ wavelength tuning, thus dynamic tuning remains technical challenge, thereby restricting their applications, multi–band communications. Here, in p–type organic PEDOT: PSS films achieved through reversible change hole...
Organic conductive polymer, Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), has been widely used as an important component in organic optoelectronic devices, and recently it emerged a promising candidate for novel epsilon-near-zero (ENZ) materials. The presence of polarons bipolarons, acting charge carriers polymers, profound influence on the electrical optical characteristics. In this work, pristine, ethylene glycol-treated (EG-treated hereafter) acid-treated PEDOT:PSS...
Quasi-bound states in the continuum (QBICs) mid-infrared region have been widely explored to enhance light–matter interactions for biochemical sensing. However, their steep dispersion bands often limit Q-factor stability under focused light. Here, we design and experimentally demonstrate a super QBIC within flatband by introducing lateral geometric perturbations square lattice of etched holes high-index Ge films, enabling strong coupling between energy bands. The achieves theoretical two...
Organic electrochemical transistors (OECTs) are seen as some of the most promising devices in organic bioelectronics. Recent interest OECTs is sparked by high performance an semiconductor channel material, i.e., poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). The capability ion penetration and charge transport determines OECTs. However, uniform structure PEDOT:PSS always makes it difficult to achieve a well-balanced between two functions. Here, we report novel film with...
Wound LiCoO2/graphite and Li[Ni0.42Mn0.42Co0.16]O2/graphite cells with 1 M LiPF6 in EC:EMC (3:7 by wt) selected electrolyte additives intentionally added water were studied using the High Precision Charger at Dalhousie University, automated cycling/storage, AC impedance long term cycling. Water was 100 1000 ppm levels to control containing 2 wt% vinylene carbonate (VC) and/or lithium bis (trifluoromethanesulphonyl) imide (LiTFSI or 3M Fluorad Lithium HQ-115). The addition of had minimal...
Indium tin oxide (ITO)-based sandwich structures with the insertion of silver (ITO/Ag/ITO) show large nonlinear optical enhancement both refraction and saturable absorption. Here nonlinearity is measured using a Z-scan experiment 1310 nm pulsed laser at normal incidence. The refractive index (n2=15.43×10-16 m2/W) for an ITO/Ag/ITO 14 interlayer absorption coefficient (β=-648×10-11 m/W) 10 are about 18 16 times greater than that single-layer ITO, respectively. Meanwhile, figure merit...
Solid electrolytes in batteries are inevitably subjected to mechanical strains when the active materials undergo chemically induced volume changes. It is difficult probe these effects complex battery structures. Thus, we developed a new situ method monitor deformation during electrochemical cycling, using simplified thin-film This approach was applied polymer on V2O5–x electrodes. Analysis of deflection measurements performed with finite element model. The results indicate that electrolyte...
Indium tin oxide (ITO)-based sandwich structures with the insertion of ultrathin (<10 nm) titanium nitride (TiN) are investigated as near-infrared (NIR) plasmonic materials. The structural, electrical, and optical properties reveal improvement stemmed from TiN insertion. is a well-established alternative to noble metals such gold, elevating electron conductivity its thickness increases. Dielectric permittivities top ITO layers show TiN-thickness-dependent properties, which lead moderate...
The commercial mature gallium nitride high electron mobility transistors (GaN HEMT) technology has drawn much attention for its great potential in industrial power electronic applications. GaN HEMT is known low on-state resistance, withstand voltage, and switching frequency. This paper presents comparative experimental evaluations of conventional Si insulated gate bipolar (Si IGBTs) similar rating. study carried out on both the element converter level. Firstly, discrete level, steady dynamic...
Tin-doped indium oxide (ITO)/Au/ITO sandwich structures with varying top and bottom ITO film thicknesses were deposited by magnetron sputtering. The effects of thickness the two films on structural, electrical, optical properties investigated. X-ray diffraction spectra showed that inserting an ultrathin Au film, average grain size layer was significantly increased, but not for one. measured transmittance measurement spectroscopic ellipsometry. In symmetric structure, where layers had same...
A novel Si/In2O3 hybrid plasmonic waveguide modulator was experimentally realized by using an asymmetric directional coupler (ADC), which consists of a silicon photonic and waveguide. All the cores are covered with silica layer, above there is metal–oxide–semiconductor (MOS) capacitor consisting In2O3/HfO2/Au layers. The Au layer sitting on top MOS works as top-electrode, while In2O3 thin film covers sidewall contacts bottom-electrode. When bias voltage not applied, light launched from...