A5061542989- Laser Material Processing Techniques
- Nonlinear Optical Materials Studies
- Surface Modification and Superhydrophobicity
- Photonic Crystals and Applications
- Optical Coatings and Gratings
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Diamond and Carbon-based Materials Research
- Soil Carbon and Nitrogen Dynamics
- Plasmonic and Surface Plasmon Research
- Analytical Chemistry and Sensors
- High-Temperature Coating Behaviors
- Plant nutrient uptake and metabolism
- Advanced Fiber Laser Technologies
- Soil and Water Nutrient Dynamics
- Orbital Angular Momentum in Optics
- Laser-induced spectroscopy and plasma
- Fluid Dynamics and Thin Films
- Solid State Laser Technologies
- Corrosion Behavior and Inhibition
- Optical properties and cooling technologies in crystalline materials
- Wastewater Treatment and Nitrogen Removal
- Laser-Matter Interactions and Applications
- Graphene research and applications
- Advanced Fiber Optic Sensors
Changchun Institute of Optics, Fine Mechanics and Physics
2019-2025
Chinese Academy of Sciences
2017-2025
University of Chinese Academy of Sciences
2017-2024
China Agricultural University
2023
Chengdu Institute of Biology
2017-2019
Hunan University of Humanities, Science and Technology
2019
China West Normal University
2017
Abstract Micro/nanoprocessing of graphene surfaces has attracted significant interest for both science and applications due to its effective modulation material properties, which, however, is usually restricted by the disadvantages current fabrication methods. Here, exploiting cylindrical focusing a femtosecond laser on oxide (GO) films, we successfully produce uniform subwavelength grating structures at high speed along with simultaneous in situ photoreduction process. Strikingly,...
Abstract The chemical instability of traditional organically‐decorated superhydrophobic metal surfaces is a significant issue, severely limiting practical applications. This due to the susceptibility low surface energy coatings ion permeation, decomposition, and exfoliation, especially in harsh environments. Here, organic coating‐free, durable on Al alloys by developing paracrystalline state bionic anthill tribe structure successfully achieved, using femtosecond laser element‐doping...
Self-Activated Superhydrophobic Surfaces A self-activated superhydrophobic metal surface without relying on organic coatings is successfully developed by the paracrystalline state formation within a bionic anthill tribe microstructure. Through integrating robust air storage, low free energy and high chemical resistance into one substance, this can offer remarkable durability especially in harsh environments. More details be found page 2412850 Jianjun Yang, Tingting Zou, Hui Ma, co-workers.
Organolead trihalide perovskites have attracted significant attention for optoelectronic applications due to their excellent physical properties in the past decade. Generally, both grain boundaries perovskite films and device structure play key roles determining performance, especially horizontal-structured device. Here, first optimized vertical-structured photodetector with single crystal MAPbBr3 as light absorber graphene transport layer is shown. The hybrid combines strong photoabsorption...
Nickel-titanium (NiTi) is the most ordinarily used shape memory alloy (SMAs), which has important implications in aerospace, medical devices and so on. However, NiTi parts were limited their application scope ability due to difficulty of processing. Until appearance laser powder bed fusion (LPBF) technology, it overcame preparation's multiple challenges became preferred method fabricate alloy. Nevertheless, fabricated by LPBF that have a great shortage still exist corrosion resistance....
Abstract Advances in femtosecond laser-material interaction facilitate the extension of maskless optical processing to high efficiency and deep-subwavelength scale. Here, a hybrid plasmon lithography technique has been demonstrated by irradiating near-infrared laser pulses onto Si material coated with thin Cr films vacuum chamber, superior nanograting structures are found deeply penetrate through film into underlying substrate. In stark contrast common ripple formed on surface, Cr-layer...
Structural colors based on the macro- or nanostructure formation are ubiquitous in nature, having great prospects many fields as a result of their environmentally friendly and long-term stable characteristics compared to pigments dyes. However, current fabrication techniques still face challenges for generation high-quality structural color patterns, especially at macroscale, an efficient way. Here, we demonstrate method that exploits flexible scanning process generating macropatterns...
Localized surface plasmon resonance (LSPR) of nanostructures and the interfacial charge transfer (CT) semiconductor materials play essential roles in study optical photoelectronic properties. In this paper, a composite substrate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="m1"> <mml:mrow> <mml:msub> <mml:mi>Ag</mml:mi> </mml:mrow> <mml:mn>2</mml:mn> </mml:msub> <mml:mi mathvariant="normal">S</mml:mi> </mml:math> quantum dots (QDs) coated plasmonic Au bowtie...
Highly sensitive, real-time and label-free sensing of liquid flow in microfluidic environments remains challenging. Here, by growing high-quality graphene directly on a glass substrate, we designed microfluidic-integrated graphene-based sensor (GFS) capable detecting complex, weak, transient velocity pressure signals environment. This device was used to study weak flows, especially blood flow, which is closely related heart artery functions. By simulating cardiac peristalsis arterial using...
Recently, enhancing the performance of flexible perovskite photodetectors through facile and effective means has gained greater attention. In contrast to typical approaches modifying light-active materials, we present here a simple but design by improving light–matter interactions near-field optical interference on back-reflected substrate, whose architecture includes morphologically flat top surface backscattering textured with micro/nanostructures femtosecond laser direct writing. A...
Aluminum (Al) alloy surfaces are prone to serious corrosion in humid and salt-laden environments, which promotes the development of numerous protective approaches. Although amorphous state is more conducive improve resistance compared with crystalline state, it still faces coating design problems like insufficient adhesive strength flaking-off tendency. Here, we propose a strategy femtosecond laser-assisted oxygen-rich doping situ create dense high-quality passivation layer on Al surfaces....
Abstract The presence of uncoordinated Pb atoms in perovskite materials, acting as non‐radiative recombination centers, significantly degrades the performance perovskite‐based photoelectronic devices. Addressing this issue by passivating these deep energy level defects is essential for enhancing device performance. By now, passivation methods are largely proposed chemical additive engineering methods, which involve oxidation through additives. However, often plagued issues such prolonged...
Despite recent progresses in the field of microfluidics, effect liquid pressure on detection accuracy has been rarely studied. Here, we perform a quantitative analysis such effect, by utilizing sensitive optical responses graphene to refractive index (RI) change its surrounding environment. We utilize reflection coupling configuration combining total internal (TIR) and ultrasonic waves. The high-performance is processed common glasses using solution-processable oxidation-reduction method....
Black nightshade (Solanum nigrum) is a kind of common malignant weed in the agricultural fields worldwide.In recent years, it has not been well controlled under commercial rate glyphosate application some areas Hunan Province China.To evaluate and confirm resistant biotypes S. nigrum, seeds ten suspected populations nigrum were collected from this province.Their GR50 values resistance determined by biomass method, comprehensive index pesticide injury leaf discs method independently.The...
生态恢复与生物多样性保育四川省重点实验室, 成都 610041; 2 中国科学院大学, 北京 100049; 3 西华师范大学环境科学与工程学院, 四川南充 637000 摘 要 在陆地生态系统中, 植物对土壤有机氮(主要指氨基酸)的获取是一个普遍的生态学现象, 然而植物对土壤有机氮的 吸收速率及土壤有机氮在植物养分供应中所占比例仍不清楚。 为探究土壤无机氮和有机氮对西南高寒森林植物氮源的贡献效 应, 以川西亚高山针叶林两个主要树种云杉(Picea asperata)和红桦(Betula albo-sinensis)的幼苗为研究对象, 采用稳定同位素 标记法对K 15 NO 、 NH 4 Cl和(U-13 C / N)甘氨酸3种氮素进行示踪, 分析了两个树种对无机氮(NH ＋ -N和NO --N)和有机氮(甘氨 酸)的吸收速率及其差异。结果显示: (1)云杉和红桦幼苗在施加同位素标记物2 h后, 两种幼苗细根的 13 C和 N均出现明显的富 集现象, 表明两种树种幼苗均能吸收甘氨酸。(2)与甘氨酸和NH -N相比, 云杉和红桦幼苗对NO --N有显著的偏好吸收,
The acquiring of superhydrophilic surfaces attracts the strong interest in self-cleaning, anti-fogging and anti-icing fields based on unique features. However, persistent time is still facing a big challenge because easily adsorbing hydrophobic groups. Here, we propose strategy to achieve superhydrophilicity persisting for an unprecedently long sapphire surfaces, by compounding femtosecond laser-induced hierarchical structures subsequent varnish TiO2. effect (with contact angle CA = 0°)...