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| 1 | Metal halide perovskite nanocrystals and their applications in optoelectronic devices显示文摘In recent years, metal halide perovskite nanocrystals (NCs) have been favored by manyresearchers due to their unique properties including long carrier diffusion length, highcarrier mobility, tunable emission wavelength, and narrow full width at half maximum,making them great application potentials in optoelectronic devices. The photoluminescencequantum yields of perovskite NCs are nearly 100%, and the device efficiencyof perovskite NC-based light-emitting diodes (LEDs) has been improvedsignificantly from below 0.1% to over 20%. In addition, perovskite NC-based solarcells and photodetectors have also developed rapidly in recent years. Here, we summarizethe synthesis and the basic optoelectronic properties of metal halide perovskiteNCs and introduce their applications in LEDs, solar cells, and photodetectors. | Po Lu Min Lu Hua Wang Ning Sui Zhifeng Shi William W.Yu Yu Zhang | 2019 | InfoMat2019，1，4： | 7 |
| 2 | Transparent inorganic multicolour displays enabled by zinc-based electrochromic devices显示文摘Electrochromic displays have been the subject of extensive research as a promising colour display technology.The current state-of-the-art inorganic multicolour electrochromic displays utilize nanocavity structures that sacrifice transparency and thus limit their diverse applications.Herein,we demonstrate a transparent inorganic multicolour display platform based on Zn-based electrochromic devices.These devices enable independent operation of top and bottom electrochromic electrodes,thus providing additional configuration flexibility of the devices through the utilization of dual electrochromic layers under the same or different colour states.Zn-sodium vanadium oxide(Zn-SVO)electrochromic displays were assembled by sandwiching Zn between two SVO electrodes,and they could be reversibly switched between multiple colours(orange,amber,yellow,brown,chartreuse and green)while preserving a high optical transparency.These Zn-SVO electrochromic displays represent the most colourful transparent inorganic-based electrochromic displays to date.In addition,the Zn-SVO electrochromic displays possess an open-circuit potential(OCP)of 1.56 V,which enables a self-colouration behaviour and compelling energy retrieval functionality.This study presents a new concept integrating high transparency and high energy efficiency for inorganic multicolour displays. | Wu Zhang Haizeng Li William W.Yu Abdulhakem Y.Elezzabi | 2020 | Light(Science & Applications)2020，9，1： | 4 |
| 3 | Randomized clinical trial of splenectomy versus splenic preservation in patients with proximal gastric cancer显示文摘 | W.Yu G. S.Choi H. Y.Chung | 2006 | Br J Surg2006，，5： | 3 |
| 4 | Wide emission shifts and high quantum yields of solvatochromic carbon dots with rich pyrrolic nitrogen显示文摘Carbon dots(CDs)with solvatochromic emission colors in different solvents have attracted much attention as a new class of luminescent nanomaterial owing to their facile synthesis and low production cost.In this work,we prepared two kinds of CDs with solvatochromic emissions:green emission CDs(G-CDs)and multicolor emission CDs(M-CDs).G-CDs synthesized from o-phenylenediamine exhibited weak photoluminescence emission(quantum yield 2.8%-6.1%)and 39 nm solvatochromic shifts(492-531 nm).In contrast,M-CDs prepared from o-phenylenediamine and 4-aminophenol showed 87 nm solvatochromic shift range(505-592 nm)and much higher photoluminescence quantum yield(18.4%-32.5%).The two CDs exhibited different emission,absorption,and photoluminescence lifetime.The origin of solvatochromic shifts and the formation mechanism of CDs were demonstrated by analyzing the structures and compositions of two CDs.High percentages of pyrrolic nitrogen and amino nitrogen make wider solvatochromic shifts and higher quantum yields.The results were well supported by density functional theory calculations.This effective strategy to expand solvatochromic shift range and improve quantum yields could open a new window to prepare satisfied solvatochromic carbon dots. | Hua Wang Philip Haydel Ning Sui Lina Wang Yan Liang William W.Yu | 2020 | Nano Research2020，13，9： | 3 |
| 5 | Boron doped graphdiyne:A metal-free peroxidase mimetic nanozyme for antibacterial application显示文摘The abuse of conventional antibiotics leads to increasing bacterial resistance.Nanozyme is a new kind of ultra-efficient and safe nanomaterial with intrinsic enzyme-like activities,showing remarkable potential as a next generation nanobactericide.Graphdiyne(GDY)is a burgeoning two-dimensional(2D)carbon allotrope with intriguing physicochemical properties,holding a great promise as a metal-free nanozyme.In this study,a boron doped GDY nanosheet(B-GDY)was constructed to simulate the performance of peroxidase(POD).By promoting the decomposition of H_(2)O_(2) to produce reactive oxygen species(ROS),the bactericidal efficacies against both Gram-positive and Gram-negative bacteria were substantially enhanced attributed to the extremely high catalytic activity of B-GDY.In-depth density functional theory(DFT)calculations illuminate that doping of boron can introduce more active B-defect sites as well as lower Gibbs free energy during the H_(2)O_(2) decomposition reaction.Notably,B-GDY contributes to significant wound healing and excellent biocompatibility,reducing the biological burden.The design of this nanozyme opens a new avenue for the development of alternative antibiotics. | Xuelong Bi Qiang Bai Lina Wang Fanglin Du Manhong Liu William W.Yu Siheng Li Jiaqiang Li Zhiling Zhu Ning Sui Jin Zhang | 2022 | Nano Research2022，15，2： | 2 |
| 6 | Effect of Rotation Rate on Microstructure and Mechanical Properties of Friction Stir Spot Welded DP780 Steel显示文摘DP780 steel sheets consisting of ferrite and martensite were successfully friction stir spot welded(FSSW)at the rotation rates of 500 to 1500 r/min using a W-Re alloy tool.The effect of rotation rate on microstructure and mechanical properties of the FSSW DP780 was investigated.The peak temperatures in the welds at various rotation rates were identified to be above A3temperature.FSSW caused the dynamic recrystallization in the stir zone(SZ),thereby producing the fine equiaxed grain structures.At the higher rotation rates of≥1000 r/min,a full martensitic structure was observed throughout the SZs,whereas at the lower rotation rate of 500 r/min,the SZ consisted of a fine dual phase structure of ferrite and martensite due to the action of deformation induced ferrite transformation.The maximum average failure load as high as 18.2 k N was obtained at the rotation rate of 1000 r/min and the fracture occurred at the thinned upper sheet. | G.M.Xie H.B.Cui Z.A.Luo W.Yu J.Ma G.D.Wang | 2016 | Journal of Materials Science & Technology2016，32，4： | 2 |
| 7 | The Cus efflux system removes toxic ions via a methionine shuttle显示文摘 | Chih‐ChiaSu FengLong Edward W.Yu | 2010 | Protein Science2010，，1： | 1 |
| 8 | Characteristics of X/γ-ray radiations by intense laser interactions with high-Z solids: The role of bremsstrahlung and radiation reactions显示文摘In this work, characteristics of X/γ-ray radiations by intense laser interactions with high-Z solids are investigated by means of a newlydeveloped particle-in-cell (PIC) simulation code. The PIC code takes advantage of the recently developed ionization and collision dynamicsmodels, which make it possible to model different types of materials based on their intrinsic atomic properties. Within the simulations, bothbremsstrahlung and nonlinear Compton scatterings have been included. Different target materials and laser intensities are considered forstudying the parameter-dependent features of X/γ-ray radiations. The relative strength and angular distributions of X/γ ray productions frombremsstrahlung and nonlinear Compton scatterings are compared to each other. The threshold under which the nonlinear Compton scatteringsbecome dominant over bremsstrahlung is also outlined. | D.Wu W.Yu Y.T.Zhao S.Fritzsche X.T.He | 2018 | Matter and Radiation at Extremes2018，3，6： | 1 |
| 9 | Randomized clinical trial of splenectomy versus splenic preservation in patients with proximal gastric cancer显示文摘 | W.Yu G. S.Choi H. Y.Chung | 2006 | Br J Surg2006，，5： | 1 |
| 10 | Adaptive synchronization and lag synchronization of uncertain dynamical systemwith time delay based on parameter identification显示文摘 | W.Yu J.Cao | | 0，，375： | 1 |
| 11 | Parameter identification of dynamical systems from time series显示文摘 | W.Yu G.Chen J.Cao J.Lü Parlitz U | | 0，，06： | 1 |
| 12 | Proton beams from intense laser-solid interaction:Effects of the target materials显示文摘We report systematic studies of laser-driven proton beams produced with micrometer-thick solid targets made of aluminum and plastic,respectively.Distinct effects of the target materials are found on the total charge,cutoff energy,and beam spot of protons in the experiments,and these are described well by two-dimensional particle-in-cell simulations incorporating intrinsic material properties.It is found that with a laser intensity of 8×10^(19) W/cm^(2),target normal sheath acceleration is the dominant mechanism for both types of target.For a plastic target,the higher charge and cutoff energy of the protons are due to the greater energy coupling efficiencies from the intense laser beams,and the larger divergence angle of the protons is due to the deflection of hot electrons during transport in the targets.We also find that the energy loss of hot electrons in targets of different thickness has a significant effect on the proton cutoff energy.The consistent results obtained here further narrow the gap between simulations and experiments. | Y.X.Geng D.Wu W.Yu Z.M.Sheng S.Fritzsche Q.Liao M.J.Wu X.H.Xu D.Y.Li W.J.Ma H.Y.Lu Y.Y.Zhao X.T.He J.E.Chen C.Lin X.Q.Yan | 2020 | Matter and Radiation at Extremes2020，5，6： | 0 |
| 13 | An overview of recent progress in the development of flexible electrochromic devices显示文摘Electrochromic materials are capable of reversibly switching their colors or optical properties through redox reactions under applied voltages,which have shown great potential applications including smart windows,nonemissive displays,optical filters,among others.Although the current rigid electrochromic devices have shown emerging interest and developed rapidly,many applications(e.g.,wearable/deformable optoelectronics)are blocked due to their inflexible features.Herein,the adaption of rigid electrochromic devices to flexible ones is of particular interest for the new era of smart optoelectronics.In this review,the current state-of-the-art achievements of flexible electrochromic devices(FECDs)are highlighted,along with their design strategies and the choice of electrochromic materials.The recent research progress of FECDs is reviewed in detail,and the challenges and corresponding solutions for real-world applications of FECDs are discussed.Furthermore,we summarize the basic fabrication strategies of FECDs and their potential applications.In addition,the development trend,the perspectives,and the outlook of FECDs are discussed at the end of this Review,which may provide recommendations and potential directions to advance the practical applications of FECDs. | Bin Wang Wu Zhang Feifei Zhao William W.Yu Abdulhakem Y.Elezzabi Linhua Liu Haizeng Li | 2023 | Nano Materials Science2023，5，4： | 0 |
| 14 | Parametric dependence of collisional heating of highly magnetized over-dense plasma by(far-)infrared lasers显示文摘Heating of over-dense plasma represents a long-standing quest in laser-plasma physics.When the strength of the magnetic field is above the critical value,a right-handed circularly polarized laser could propagate into and heat up the highly magnetized over-dense collisional plasma directly;the processes are dependent on the parameters of the laser,plasma and magnetic field.The parametric dependence is fully studied both qualitatively and quantitatively,resulting in scaling laws of the plasma temperature,heating depth and energy conversion efficiency.Such heating is also studied with the most powerful CO_(2) and strongest magnetic field in the world,where plasma with density of 10^(23)cm^(-3) and initial temperature of 1 keV is heated to around 10 keV within a depth of several micrometres.Several novel phenomena are also discovered and discussed,that is,local heating in the region of high density,low temperature or weak magnetic field. | K.Li W.Yu | 2022 | High Power Laser Science and Engineering2022，10，4： | 0 |
| 15 | White-light-emitting diodes using GaN-excited CdSe/CdS/ZnS quantum dots显示文摘Fluorescence-based white-light-emitting diodes(WLEDs) were fabricated using blue GaN chips and green- and red-emitting CdSe/CdS/ZnS quantum dots(QDs).The coordinate and color temperature of the WLEDs could be varied because of the size-tunable emission of CdSe QDs from 510 to 620 nm.Warm and cold white emissions were confirmed with the color temperature ranging from 4000 to 9000 K.Color coordinates were analyzed at different bias.The fast enhancement of blue emission resulted in the shift of color coordinates to the cold side.The stability of white emission during operation was analyzed;stable spectra were achieved within 90 min. | Yijun Lin Yu Zhang Jia Zhao Pengfei Gu Ke Bi Qiuran Zhang Hairong Chu Tieqiang Zhang Tian Cui Yiding Wang Jun Zhao William W.Yu | 2014 | Particuology2014，12，4： | 0 |
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