A5100654625- Flame retardant materials and properties
- Metamaterials and Metasurfaces Applications
- Optical Coatings and Gratings
- Ferroelectric and Piezoelectric Materials
- Polymer Nanocomposites and Properties
- Synthesis and properties of polymers
- Silicone and Siloxane Chemistry
- Advanced Antenna and Metasurface Technologies
- Microwave Dielectric Ceramics Synthesis
- Plasmonic and Surface Plasmon Research
- ZnO doping and properties
- Acoustic Wave Resonator Technologies
- Photonic Crystals and Applications
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- Fire dynamics and safety research
- 2D Materials and Applications
- Semiconductor materials and devices
- biodegradable polymer synthesis and properties
- Advanced Optical Imaging Technologies
- Photonic and Optical Devices
- X-ray Diffraction in Crystallography
- Advanced Surface Polishing Techniques
- Surface Roughness and Optical Measurements
- Electronic and Structural Properties of Oxides
Xi'an Technological University
2012-2024
Yunnan University
2019-2024
MS Technology (United States)
2018-2023
Guilin University of Electronic Technology
2021
China Tobacco
2011-2017
University of Science and Technology of China
2008-2017
Putian University
2014
Xidian University
2011
Hong Kong University of Science and Technology
2009
University of Hong Kong
2009
Ni–Fe layered double hydroxide/graphene hybrids were synthesized by a one-pot in situ solvothermal route. X-ray diffraction and photoelectron spectroscopy analyses showed that the formation of hydroxide (Ni–Fe LDH) reduction graphene oxide occurred simultaneously during process. TGA results incorporation LDH significantly improved thermal stability graphene. Subsequently, LDH/graphene introduced into epoxy resins for reducing their fire hazard. With 2.0 wt% LDH/graphene, onset degradation...
A biobased flame retardant toughening agent, phosphaphenanthrene groups-containing triscardanyl phosphate (PTCP), was successfully synthesized via debydrochlorination, epoxidation and ring opening reaction from renewable resource cardanol. The chemical structure of PTCP confirmed by the proton phosphorus nuclear magnetic resonance. Epoxy resins (EPs) with different contents were prepared through a simple mixing method. Thermogravimetric analysis results indicated that earlier degradation...
Metasurface-based flat optics is continuously attracting interest owing to its ability for miniaturization of optical devices and systems. Over the last few years, broadband achromatic metalenses have been extensively studied focusing imaging in visible band. However, it still a substantial challenge design an metalens that can produce high-focusing efficiency high-consistency focal length over entire spectrum. In this Letter, we propose polarization-independent operating at wavelengths from...
Abstract Rare earth (RE = La 3+ , Sm Pr ) ion doped Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO (RE-PMN-PT) ferroelectric thin films with compositions near the morphotropic phase boundary were grown on Pt/TiO 2 /SiO /Si(100) substrate using sol-gel/spin coating method. The structure, electrical properties, and photoluminescence performance of investigated systematically. highly (100)-preferred orientation was obtained in pure perovskite Sm-PMN-0.30PT an average grain size 131 nm. After 2.5% doping,...
Abstract Pb (In 1/2 Nb ) O 3 ‐Pb (Sc ‐PbTiO (PIN‐PSN‐PT) ternary ceramics with compositions near morphotropic phase boundary (MPB) were fabricated by solid‐state‐sintering process. Dielectric and piezoelectric properties of xPIN‐yPSN‐zPT (x = 0.19, 0.23 z 0.365, 0.385) investigated as a function temperature, showing high T r‐t c on the order 160 ~ 200°C 280 290°C, respectively. The xPIN‐yPSN‐0.365PT 0.19 0.23) do not depolarize at temperature up to 200°C, better thermal stability when...
The dangling bonds on the surfaces of 2D Ga<sub>2</sub>O<sub>3</sub> can be effectively passivated by hydrofluorination, making with ultra-high carrier mobility and bipolar transport property.
Wearable thermoelectric generators (w-TEGs) can incessantly convert body heat into electricity to power electronics. However, the low efficiency of materials, tiny terminal temperature difference, rigidity, and negligence lateral transfer preclude broad utilization w-TEGs. In this work, we employ finite element simulation find key factors for simultaneous realization flexibility ultrahigh normalized density. Using melamine foam with an ultralow thermal conductivity (0.03 W/m K) as...
For conventional refractive lenses, chromatic aberration inevitably occurs due to the index variation of lens material with incident wavelength, leading axial aberrations and lower imaging system quality. Achromatic metalenses have demonstrated a great capability solve this problem been extensively investigated. However, metalens achromatic method involves construction unit structure satisfying phase distribution greater than 0-2
Metalenses provide unprecedented opportunities to overcome the limitations of conventional refractive lenses, which have been extensively studied achieve achromatic focusing and imaging in various wavebands. However, it is a challenging task create metalens that can with high efficiency for broad bandwidth covering entire visible near-infrared spectrum. Here, we present design difficulty by employing two types silicon nitride pillars different cross sections as optical phase shifters....