A5078681499- Laser-Matter Interactions and Applications
- Solid State Laser Technologies
- Advanced Fiber Laser Technologies
- Laser-Plasma Interactions and Diagnostics
- Quantum Dots Synthesis And Properties
- Laser Design and Applications
- Organic Light-Emitting Diodes Research
- Nanocluster Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Thermal Radiation and Cooling Technologies
- ZnO doping and properties
- Laser Material Processing Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Conducting polymers and applications
- Nanoplatforms for cancer theranostics
- Perovskite Materials and Applications
- Photonic Crystal and Fiber Optics
- Luminescence Properties of Advanced Materials
- Aerogels and thermal insulation
- Ocular and Laser Science Research
- Surface Modification and Superhydrophobicity
- Photonic Crystals and Applications
- Graphene research and applications
- Flame retardant materials and properties
- Advanced Sensor and Energy Harvesting Materials
Karlsruhe Institute of Technology
2019-2024
Shanghai Institute of Optics and Fine Mechanics
2016-2023
Chinese Academy of Sciences
2016-2023
South China University of Technology
2010-2021
Dalian University of Technology
2020
Tianjin University
2018-2020
Shanghai Jiao Tong University
2019
Tongji University
2016-2017
University of Chinese Academy of Sciences
2014-2016
Technical Institute of Physics and Chemistry
2014
Near-infrared II (NIR-II) imaging at 1100-1700 nm shows great promise for medical diagnosis related to blood vessels because it possesses deep penetration and high resolution in biological tissue. Unfortunately, currently available NIR-II fluorophores exhibit slow excretion low brightness, which prevents their potential applications. An atomic-precision gold (Au) cluster with 25 atoms 18 peptide ligands is presented. The Au25 clusters show emission 1100-1350 the fluorescence quantum yield...
Neurotrauma is one of the most serious traumatic injuries, which can induce an excess amount reactive oxygen and nitrogen species (RONS) around wound, triggering a series biochemical responses neuroinflammation. Traditional antioxidant-based bandages effectively decrease infection via preventing oxidative stress, but its effectiveness limited to short period time due rapid loss electron-donating ability. Herein, we developed nanozyme-based bandage using single-atom Pt/CeO2 with persistent...
Here, we report the recent progress on front end developed for 100 PW-class laser facility. Using 3 stages of optical parametric chirped-pulse amplification (OPCPA) based lithium triborate (LBO) crystals, realized a 5.26 J/0.1 Hz amplified output with bandwidth over 200 nm near center wavelength 925 nm. After compressor, obtained pulse duration 13.4 fs. As compression efficiency reached 67%, this OPCPA could potentially support peak power 263 TW at repetition rate 0.1 Hz. To best our...
Perovskite nanocrystals (PNCs) bear a huge potential for widespread applications, such as color conversion, X-ray scintillators, and active laser media. However, the poor intrinsic stability high susceptibility to environmental stimuli including moisture oxygen have become bottlenecks of PNC materials commercialization. Appropriate barrier material design can efficiently improve PNCs. Particularly, strategy packaging PNCs in organosilicon matrixes integrate advantages inorganic-oxide-based...
Catalytic nanomaterials can be used extrinsically to combat diseases associated with a surplus of reactive oxygen species (ROS). Rational design surface morphologies and appropriate doping substantially improve the catalytic performances. In this work, class hollow polyvinyl pyrrolidone-protected PtPdRh nanocubes enhanced activities for in vivo free radical scavenging is proposed. Compared Pt PtPd counterparts, ternary show remarkable properties decomposing H2 O2 via reduction reactions....
Abstract Conventional inorganic‐nanoparticles‐based scattering systems have dominated many practical applications for years. In contrast, the rise of porous polymers is perceived as a game‐changer due to their low cost, facile preparation, and great abundance. One challenging issue be tackled design fabrication with light‐scattering properties comparable those inorganic nanoparticles. Taking inspiration from nature (e.g., white beetles Cyphochilus ), scientists achieved remarkable progress...
Optical interference filters (OIFs) are vital components for a wide range of optical and photonic systems. They pivotal in controlling spectral transmission reflection upon demand. OIFs rely on the incident wave at multilayers, which fabricated with nanometer precision. Here, we demonstrate that these requirements can be fulfilled by inkjet printing. This versatile technology offers high degree freedom manufacturing, as well cost-affordable rapid-prototyping features from micron to meter...
Based on electrospinning technology, in this study, we fabricated poly(lactic-co-glycolic acid) (PLGA) nanofiber films with high reflectivity and scattering properties. Various different thicknesses fiber diameters were by changing the time solution concentration, respectively. Detailed optical measurements demonstrate that film reflectance ability increase thickness, whereas diameter contributes little to both With optimized thickness diameter, feature whiteness a of 98.8% compared BaSO4...
Abstract Femtosecond laser ablation has been demonstrated to be a versatile tool produce micro/nanoscale features with high precision and accuracy. However, the use of fluence increase efficiency usually results in unwanted effects, such as redeposition debris, formation recast layer, heat‐affected zone or around craters. Here this limitation is circumvented by exploiting thin frost layer thickness tens microns, which can directly formed condensation water vapor from air onto exposed surface...
Inspired by the Papilio blumei butterfly, quantum-dot (QD) film coupled with micro-concavity array (MCA) films is proposed in this Letter to enhance color conversion efficiency (CCE) of QD-based light-emitting diodes (LEDs). The diameter, aspect ratio, and pitch MCA are optimized optical simulations. Both simulation experimental results show that scattering double reflection effects key CCE improvement QD films. CCEs increased from 19.98% 21.59% 21.78% (350 mA) for single-sided...
We develop a facile, fast, and cost-effective method based on the electrowetting effect to fabricate concave microlens arrays (MLA) with tunable height-to-radius ratio, namely aspect ratio (AR). The electric parameters including voltage frequency are demonstrated play an important role in MLA forming process. With optimized of 5 Hz, AR tuned from 0.057 0.693 for increasing 0 V 180 V. optical properties MLA, their transmittance light diffusion capability, investigated by spectroscopic...
Mn clusters with pH-triggered catalytic selective capacity could optimize the effects of radiotherapy in acidic tumor microenvironment, while protecting normal tissues from radiation neutral circumstances simultaneously.
Abstract Owing to their high color purity, tunable bandgap, and efficiency, quantum dots (QDs) have gained significant attention as conversion materials for high-end display applications. Moreover, inkjet-printed QD pixels show great potential realizing full-color mini/micro-light emitting diode (micro-LED)-based displays. As a layer, the photoluminescence intensity of QDs is limited by insufficient absorptance excitation light due lack scattering. Conventional scatterers, such titanium...
Inspired by the porous scale of bright white beetle Cyphochilus, a polymerization-induced phase separation method is proposed to fabricate bioinspired high-scattering polymer films with structures. With an optimized formulation, mean pore size ∼200nm feature broadband reflectance ∼71% at thickness 16 µm and are measured have transport free path ∼3µm. The high reflectivity enable application on light-emitting diodes great potential in other similar optoelectronic fields.
A high-energy diode-pumped picosecond laser system centered at 1064 nm for optical parametric chirped pulse amplifier (OPCPA) pumping was demonstrated. The based on a master oscillator power configuration, which contained an Nd:YVO4 mode-locked seed laser, LD-pumped Nd:YAG regenerative amplifier, and two double-pass amplifiers. reflecting volume Bragg grating with 0.1 reflective bandwidth used in the spectrum narrowing broadening to suit duration of (OPA) process. Laser pulses energy 316.5...
Layered nickel-iron oxide/hydroxide nanosheets have proven to be the most efficient catalyst for water oxidation reaction. Introducing structural defects is a particularly attractive method increasing number of active sites and tailoring intrinsic electronic properties. Herein, were introduced on Ni-Fe through sequentially electrodoping dedoping surface material with tetramethylammonium ions. The as-prepared defect-rich showed an enhanced catalytic performance oxygen evolution reaction (OER)...
Whiteness is an intriguing property in some creature surfaces and usually originates from broadband multi-scattering by the refined structures. In this article, we report that Boehmeria nivea, a widely distributed tropical subtropical plant, has highly reflective layer on lower surface of leaf. Morphological characterization demonstrates consists numerous wrinkled micro-filaments, forming disordered porous network to efficiently scatter visible light. Moreover, white shown exhibit protection...