|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Mechanical properties and enhancement mechanisms of titanium-graphene nanocomposites显示文摘Molecular dynamics(MD)simulations of the titanium-graphene nanocomposites(TiGNCs)under uniaxial tension are carried out to investigate the mechanical properties and reinforcement mechanism of graphene in composites.It is found that introduction of mechanically robust graphene limits the strain-induced dislocation and araorphization and thereby highly improves the mechanical properties of metallic titanium that are greatly affected by the crystal stacking orientation of graphene and titanium layers.The thickness of titanium layers,interface interaction and working temperature play an important role in the mechanical strength and elastic moduli of composites.The results show the mechanical properties of TiGNCs are monotonically enhanced with reduction of the titanium layer thickness and working temperature,and the Young5s modulus obtained by MD simulation are higher than that predicted by the rule of mixture(ROM)due to consideration of interfacial interaction in computational calculation.In addition,once the critical thickness of titanium layer is reached,graphene wrinkles are induced in composites because of Poisson's effect induced large lateral compression stress in the interface region.This study provides helpful insights into fundamental understanding reinforcing mechanism of graphene and ultimately contribute to the optimal design and performance of mechanically robust graphene-based metallic composites. | Wanhong Tang Jie Zhang Jianyang Wu Jinyou Shao Peng Ding Guozhen Hou Xiaoming Chen | 2020 | Acta Mechanica Sinica2020，36，4： | 7 |
| 2 | Nanoimprint lithography for the manufacturing of flexible electronics显示文摘Flexible electronics have received considerable attention in academies and industries for their promising applications in enormous fields, such as flexible displays, wearable sensors, artificial skins, and flexible energy devices. Challenges remain in developing a flexible and scalable manufacturing method to facilitate the fabrication of multi-functional structures in a flexible electronic system. Nanoimprint lithography is a high resolution and low-cost approach to fabricate nanostructures over a large area. This paper reviews recent progress of nanoimprint lithography and its applications in flexible electronics. The basic principles, classification, research focus, and critical issues of nanoimprint lithography are elaborated. Then, the advantages of nanoimprint lithography are demonstrated in several typical applications related to flexible electronics, including conductive films, optoelectronic devices, flexible sensors, energy harvesting and storage devices, and bioinspired electronic devices. Finally,the challenges and perspectives of nanoimprint lithography in flexible electronic systems are discussed. | SHAO JinYou CHEN XiaoLiang LI XiangMing TIAN HongMiao WANG ChunHui LU BingHeng | 2019 | Science China(Technological Sciences)2019，62，2： | 6 |
| 3 | A facile method to fabricate surfaces showing superhydrophilicity in air and superhydrophobicity in oil显示文摘The changes of the wettability of the solid surfaces have attracted massive attention due to their important practical implications in numerous fields. As a new subject, the research on the wettability under the different environments is still in its early stage. So the fundamental research must be performed for the practical applications under different environments. However, it is seldom that the comprehensive wettability of a surface in air, in water and in oil has been reported. In this paper, the authors investigated the wettability of the stainless steel mesh coated with polyurethane in the above three different environments. The surface of the uncoated mesh was found to be hydrophobic in air, but the surface of the coated mesh was superhydrophilic in air. More interestingly, the surfaces of the coated meshes were superoleophilic in water and superhydrophobic in oil. Due to the coated meshes with these wettabilities were fabricated via a facile two-step method, the presented method may be adopted for large-scale industrial production, in various fields, such as icing prevention or the oil-field industry. | YE XiangDong GUO YuXuan JIA YanChao YE Xin WANG Shuai CAI AnJiang WU XiaoJun SHAO JinYou | 2017 | Science China(Technological Sciences)2017，60，11： | 2 |
| 4 | Fabrication of Microlens arrays with well-controlled curvature by liquid trapping and electrohydrodynamic deformation in microholes显示文摘 | Li Xiangming Ding Yucheng Shao Jinyou | | 0，，： | 1 |
| 5 | Fabrication of concave microlens arrays using controllable dielectrophoretic force in template holes显示文摘 | Li Xiangming Ding Yucheng Shao Jinyou | | 0，，： | 1 |
| 6 | Fabrication of high-aspect-ratio microstruetures using dielectrophoresis-electrocapillary force driven UV-imprinting显示文摘 | Li Xiangming Shao Jinyou Tian Hongmiao | | 0，，： | 1 |
| 7 | Discretely-supported nanoimprint lithography for patterning the high-spatial-frequency stepped surface显示文摘Non-planar morphology is a common feature of devices applied in various physical fields,such as light or fluid,which pose a great challenge for surface nano-patterning to improve their performance.The present study proposes a discretely-supported nanoimprint.lithography(NIL)technique to fabricate nanostructures on the extremely non-planar surface,namely high-spatial-frequency stepped surface.The designed discretely imprinting template implanted a discretely-supported intermediate buffer layer made of sparse pillars arrays.This allowed the simultaneous generation of air-cushion-like buffer and reliable support to the thin structured layer in the template.The resulting low bending stiffness and distributed concentrated load of the template jointly overcome the contact difficulty with a stepped surface,and enable the template to encase the stepped protrusion as tight as possible.Based on the proposed discretely-supported NIL,nanostructures were fabricated on the luminous interface of light emitting diodes chips that covered with micrometer step electrodes pad.About 96%of the utilized indium tin oxide transparent current spreading layer surface on top of the light emitting diode(LED)chips was coated with nanoholes array,with an increase by more than 40%in the optical output power.The excellent ability of nanopatterning a non-planar substrate could potentially lead innovate design and development of high performance device based on discretely-supported NIL. | Chunhui Wang Yu Fan Jinyou Shao Zhengjie Yang Jiaxing Sun Hongmiao Tian Xiangming Li | 2021 | Nano Research2021，14，8： | 1 |
| 8 | Electrohydrodynamic micro-/nanostructuring processes based on prepatterned polymer and prepattemed template 显示文摘 | TIAN Hongmiao SHAO Jinyou Ding Yucheng | 2014 | Macromolecules2014，47，4： | 1 |
| 9 | Influence of induced-charge electrokinetic phenomena on the dielectrophoretic assembly of gold nanoparticles in a conductive-island-based microelectrode system 显示文摘 | DING Haitao LIU Weiyu SHAO Jinyou | 2013 | Langmuir2013，29，12： | 1 |
| 10 | A theoretical and numerical investigation of travelling wave induction microfluidic pumping in a temperature gradient 显示文摘 | LIU Weiyu REN Yukun SHAO Jinyou | 2014 | Journal of Physics D: Applied Physics2014，47，07： | 1 |
| 11 | Ultrastable Viologen Ionic Liquids-Based Ionogels for Visible Strain Sensor Integrated with Electrochromism,Electrofluorochromism,and Strain Sensing显示文摘Flexible electronics play a key role in the development of human society and our daily activities.Currently they are expected to revolutionize personal health management.However,it remains challenging to fabricate smart sensors with high robustness,reliability,and visible readout.Herein,high-performance electrochromic(EC),electro-fluorochromic(EFC),and double-network ionogels with excellent transmissivity,high mechanical robustness,and ultrastable reversibility are prepared by combination of thienoviologen-containing ionic liquids with poly(ethyl acrylate)elastomer.The ionogels exhibit good mechanical properties(1000%stretchability and 3.2 kJ m^(−2) fracture energy).The ionogel-based EC devices have a significantly simplified device fabrication process as well as superior cycling stability in which 88%of the contract ratio is maintained at 88%at 500 cycles,even after being stored for 2 years under ambient atmosphere(relative humidity:30%∼40%,25°C).The conductivity of ionogels showed a fast and reproducible response to strain,and the conductivity decreased with increased strain.By virtue of the EC and EFC properties of the thienoviologen component,the EC and EFC efficiency decreased with the increased strain loaded on the ionogels,and almost no EC or EFC phenomena were observed when the strain was above 300%.This feasible strategy provides an opportunity for the development of visible strain sensors to monitor the body’s movements through color and fluorescence emission. | Yueyan Zhang Mengying Guo Guoping Li Xiaoliang Chen Zishun Liu Jinyou Shao YongAn Huang Gang He | 2023 | CCS Chemistry2023，5，8： | 1 |
| 12 | Gecko-Inspired Slant Hierarchical Microstructure-Based Ultrasensitive Iontronic Pressure Sensor for Intelligent Interaction显示文摘Highly sensitive flexible pressure sensors play an important role to ensure the safety and friendliness during the human-robot interaction process.Microengineering the active layer has been shown to improve performance of pressure sensors.However,the current structural strategy almost relying on axial compression deformation suffers structural stifening,and together with the limited area growth efficiency of conformal interface,essentially limiting the maximum sensitivity.Here,inspired by the interface contact behavior of gecko's feet,we design a slant hierarchical microstructure to act as an electrode contacting with an ionic gel layer,fundamentally eliminating the pressure resistance and maximizing functional interface expansion to achieving ultrasensitive sensitivity.Such a structuring strategy dramatically improves the relative capacitance change both in the low-and high-pressure region,thereby boosting the sensitivity up to 36000kPa^(-1) and effective measurement range up to 30okPa.To verify the advantages of high sensitivity,the sensor is integrated with a soft magnetic robot to demonstrate a biomimetic Venus flytrap.The ability to perceive weak stimuli allows the sensor to be used as a sensory and feedback window,realizing the capture of small live insects and the transportation of fragile objects. | Yongsong Luo Xiaoliang Chen Hongmiao Tian Xiangming Li Yangtianyu Lu Yang Liu Jinyou Shao | 2022 | Research2022，，4： | 0 |
| 13 | Electric-driven flexible-roller nanoimprint lithography on the stress-sensitive warped wafer显示文摘Surface nanopatterning of semiconductor optoelectronic devices is a powerful way to improve their quality and performance.However,photoelectric devices’inherent stress sensitivity and inevitable warpage pose a huge challenge on fabricating nanostructures large-scale.Electric-driven flexible-roller nanoimprint lithography for nanopatterning the optoelectronic wafer is proposed in this study.The flexible nanoimprint template twining around a roller is continuously released and recovered,controlled by the roller’s simple motion.The electric field applied to the template and substrate provides the driving force.The contact line of the template and the substrate gradually moves with the roller to enable scanning and adapting to the entire warped substrate,under the electric field.In addition,the driving force generated from electric field is applied to the surface of substrate,so that the substrate is free from external pressure.Furthermore,liquid resist completely fills in microcavities on the template by powerful electric field force,to ensure the fidelity of the nanostructures.The proposed nanoimprint technology is validated on the prototype.Finally,nano-grating structures are fabricated on a gallium nitride light-emitting diode chip adopting the solution,achieving polarization of the light source. | Yu Fan Chunhui Wang Jiaxing Sun Xiaogang Peng Hongmiao Tian Xiangming Li Xiaoliang Chen Xiaoming Chen Jinyou Shao | 2023 | International Journal of Extreme Manufacturing2023，5，3： | 0 |
| 14 | Photoluminescence and energy transfer of YAG:Ce^(3+),Gd^(3+),Bi^(3+)显示文摘In this study,Gd^(3+)and Bi^(3+)ions act to redshift the emission band to orange region,and to enhance significantly the maximum emission of YAG:Ce^(3+).On account that size mismatch between the host and the doped Gd^(3+)ion,the crystal structure turns soft,and the emission spectra are not tuned from 540 to 570 nm but decreased the emission intensity.Accordingly,an effective way to increase emission intensity is to introduce Bi^(3+)ion into the YAG:Ce^(3+),Gd^(3+)phosphors.Experimental results show partial overlapping between the emission band of Bi^(3+)ion and the excitation band of Ce^(3+)ion,indicating that the energy transfer from Bi^(3+)to Ce^(3+)ions exists in the(Y_(1.94)Ce_(0.06)Gd)Al_(5)O_(12):Bi^(3+)phosphor.Bi^(3+)ion can serve as the activator to provide energy for Ce^(3+)ion via cross relaxation phenomenon.Therefore,the(Y_(1.94)Ce_(0.06)Gd)Al_(5)O_(12):Bi^(3+)phosphor could have potential applications in warm white LEDs. | Meidan Que Wenxiu Que Ting Zhou Jinyou Shao Lingbing Kong | 2016 | Journal of Advanced Dielectrics2016，6，4： | 0 |
| 15 | Electrically induced nanostructuring over large area——a new idea from concept to practice显示文摘The paper proposes a novel nano-patterning method called electrically induced nanostructuring,where an external electric field,insteadof the external mechanical pressure,is applied to generate an electrohydrodynamic force acting on the polymer-air interface to drive the polymer's flow into the mold cavities. This electrically induced nanostructuring method no longer requires a large mechanical pressure externally applied for actuating the polymer filling in the mold cavities,and has been used to successfully fabricate micro/nano pillar arrays of a high aspect ratio (up to 10),which have been usually considered to be'difficult to fabricate'by conventional molding or nanoimprinting processes. | Li Xiangming Ding Yucheng Shao Jinyou Liu Hongzhong | 2013 | Engineering Sciences2013，11，1： | 0 |
| 16 | A flexible dual-function capacitive sensor enhanced by looppatterned fibrous electrode and doped dielectric pillars for spatial perception显示文摘The integrated perception capable of detecting and monitoring varieties of activities is one of the ultimate purposes of wearable electronics and intelligent robots.Limited by the space occupation,it lacks practical feasibility to stack multiple types of single sensors on each other.Herein,a high-sensitivity dual-function capacitive sensor with proximity sensing and pressure sensing is proposed.The fringing electric field can be confined in the proximity-sensitive area by fibrous loop-patterned electrode,leading to more stolen charges when object approaching and thus a high proximity sensitivity.The high-permittivity doped structured dielectric layer reduces the compressive stiffness and enhances the rate of compression-caused increase in the equivalent relative permittivity of the dielectric layer,resulting in a larger increase in capacitance and thus a high pressure sensitivity.The electrodes and dielectric layer together compose the capacitor and act as the sensor without taking up additional space.The decoupling of proximity-sensing and pressure-sensing modes can be achieved by decrease or increase in capacitance.Combined with array distribution and sequential scanning,the sensors can be used for detection of motion trajectory,contour recognition,pressure distribution. | Yongsong Luo Xiaoliang Chen Xiangming Li Hongmiao Tian Liang Wang Jinyou Shao | 2023 | Nano Research2023，16，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员