A5110586996- Transition Metal Oxide Nanomaterials
- Thermal Radiation and Cooling Technologies
- Urban Heat Island Mitigation
- Conducting polymers and applications
- Gas Sensing Nanomaterials and Sensors
- Ga2O3 and related materials
- TiO2 Photocatalysis and Solar Cells
- ZnO doping and properties
- Advanced Antenna and Metasurface Technologies
- Electromagnetic wave absorption materials
- Optical properties and cooling technologies in crystalline materials
- Dielectric materials and actuators
- Metamaterials and Metasurfaces Applications
- Synthesis and properties of polymers
- Photonic Crystals and Applications
- solar cell performance optimization
- Metal and Thin Film Mechanics
- Tribology and Wear Analysis
- Silicone and Siloxane Chemistry
- Advanced Thermodynamics and Statistical Mechanics
- Nonlinear Optical Materials Studies
- Advanced Sensor and Energy Harvesting Materials
- Quantum Electrodynamics and Casimir Effect
- Advanced Memory and Neural Computing
- Optical Wireless Communication Technologies
Harbin Institute of Technology
2015-2024
Suzhou Research Institute
2024
Harbin University
2017-2020
Optical materials capable of dynamically manipulating electromagnetic waves are an emerging field in memories, optical modulators, and thermal management. Recently, their multispectral design preliminarily attracts much attention, aiming to enhance efficiency integration functionalities. However, the manipulation based on these is challenging due ubiquitous wavelength dependence restricting capacity narrow wavelengths. In this article, we cascade multiple tunable cavities with...
Adaptive infrared (IR) electrochromic devices driven by electrical energy have considerable potential use in intelligent IR thermal management application the future.
Radiative cooling, as a passive way to dissipate heat into outer space without any extra energy, has attracted considerable attention recently. However, the metal reflector of conventional cooling radiators fails work in ultraviolet due giant absorption itself such waveband; meanwhile, selective thermal emission within atmospheric window still much room for improvement. In this work, we propose dual-band emitter design with multi-nanolayers, which not only makes up deficiency reflectors by...
Daytime radiative cooling has attracted considerable attention recently due to its tremendous potential for passively exploiting the coldness of universe as clean and renewable energy. Many advanced materials with novel photonic micro/nanostructures have already been developed enable highly efficient daytime coolers, among which flexible hierarchical porous coatings (HPCs) are a more distinguished category. However, it is still hard precisely control size distribution randomized pores within...
Radiative cooling has attracted considerable attention due to its tremendous potential in exploiting the cold reservoir of deep sky. However, overcooling always occurs conventional static radiative coolers because they operate only mode both hot and cold. Therefore, a dynamic cooler based on phase change materials is highly desired. Nevertheless, practical outdoor phase-change-based not yet been experimentally demonstrated. To satisfy stringent requirement weather conditions, we engineered...
Dynamic thermal management materials attract fast-increasing interest due to their adaptability changing environments and greater energy savings as compared static materials. However, the high transition temperature low emittance tunability of vanadium dioxide (VO2)-based infrared radiation regulators limit practical applications. This study addresses these issues by proposing a smart regulator based on Fabry-Pérot cavity structure (VO2/HfO2/Al), which is prepared high-power impulse...
Reconfigurable infrared (IR) materials have widespread applications in thermal management and smart IR concealment. Although various reconfigurable can be customized by positive or negative differential VO2-based resonators, their insightful mechanism remains unknown. Here, we comprehensively investigate the fundamental design rule of radiation between properties for first time. Importantly, skin depth VO2 film metal state is investigated to clarify transformation from properties, critical...
Vanadium dioxide (VO2)-based thermochromic coatings has attracted considerable attention in the application of smart windows as a result their intriguing property metal-insulator transition at moderate temperatures. However, practical requirements windows, i.e., high luminous transmittance Tlum > 60% and large solar modulating ability ΔTsol 10%, are competing to extent hardly satisfied simultaneously. Here, we proposed facile universal method prepare VO2 for exceeding criteria above using...
Transparent microwave absorbers that exhibit high optical transmittance and absorption capability are ideal, although having a fixed performance limits their applicability. Here, simple, transparent, thermally tunable absorber is proposed, based on patterned vanadium dioxide (VO2) film. Numerical calculations experiments demonstrate the proposed VO2 has of 84.9% at 620 nm; its reflection loss 15.06 GHz can be tuned from –4.257 to –60.179 dB, near-unity achieved 523.75 K. Adjusting only film...
Abstract An optical limiter (OL) is a nonlinear device that protects sensitive photodetectors or human eyes from high‐intensity illumination. However, current OLs have low open‐state transmittance and limited turndown ratio in some cases. In this study, first it demonstrated combining the insulator‐to‐metal transition (IMT) of vanadium dioxide (VO 2 ) with anti‐reflection layers can enable both high broadband (>−0.9 dB at peak wavelength) while preserving large (>21.8 dB). Furthermore,...
Abstract Temperature‐adaptive variable emissivity reflectors offer an electricity‐free and environmentally friendly cooling strategy, holding substantial potential to improve the global energy landscape. However, challenges associated with unoptimized solar absorptance can lead overcooling or overheating when modulation of infrared emittance is held constant, thereby increasing extra consumption. Herein, a temperature‐adaptive reflector based on W‐Mg co‐doped VO 2 (W‐Mg‐VER) proposed,...
Colloidal photonic crystal (PC)-based anti-counterfeiting materials have been widely studied due to their inimitable structural colors and tunable band gaps (PBGs) as well convenient identification methods. In this review, we summarize recent developments of colloidal PCs in the field from aspects security strategies, design, fabrication principles, means. Firstly, an overview strategies for constructing PC composed variable color patterns, invisible prints, several other is presented. Then,...
The unsafe deposition process and slow rate of the electrolyte layers are main obstacles for electrochromic devices (ECDs) toward commercial application. In this work, an ECD with a structure glass/ITO/WO3/LiF/NiO/ITO has been prepared by electron beam resistance evaporation methods. LiF is deposited particles shows promising potential as Li+ based in ECDs owing to its high transparency good ionic conductivity. fast response (4.0 s bleaching 9.6 coloring), large optical transmittance...