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Angle-insensitive transmission and absorption with a PT phase transition via coupled interface states in hybrid one-dimensional photonic crystal heterostructures

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Physical Review A 2024年第5期109卷 053504-053504页

作者： Guochao Wei Beibei Wang Kang Du Bohan Zhang Cai Zhou Tingting Wang Weijia Han Wei Zhu Shengxiang Wang School of Mathematical and Physical Sciences Wuhan Textile University Wuhan 430200 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan 430200 China

Non-Hermitian systems offer novel methods for manipulating electromagnetic waves, including applications in sensing and mode conversion, attracting significant research interest. In this work, we propose a hybrid photonic crystal comprised of two topologically distinct heterostructures with angle-insensitive band gaps. This hybrid photonic crystal can sustain two topological interface states (TISs), and is considered as an optical non-Hermitian system. By precisely tuning of the coupling between these TISs, we achieve perfect wave transmission, revealing a parity-time (PT) phase transition, as evidenced by the evolution of the transmission spectra. Remarkably, the perfect transmission of waves remains resilient against fluctuating incident angles, ensured by the angle-tolerant photonic band gaps of the heterostructures. Additionally, we explore another hybrid photonic crystal heterostructure featuring two interface channels supporting the TIS and the Tamm plasma polariton. As the coupling between these two modes strengthens, two distinct resonance peaks emerge. Gradually reducing this coupling results in the merging of these peaks into a single peak. As the PT phase transition case, perfect wave absorption can be realized. Notably, the frequency shifts of the transmission and absorption peaks remain minimal, demonstrating a remarkable stability with an angle variation from 0 ° to 90 ° (Δf=1.4THz). These results further expand and complement the ongoing exploration of non-Hermitian topological physics.

关键词： Light propagation, transmission & absorption Phononic crystals Plasma waves Topological effects in photonic systems 1-dimensional systems Non-Hermitian systems

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NASICONs-type solid-state electrolytes:The history,physicochemical properties,and challenges

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Interdisciplinary materials 2023年第1期2卷 91-110页

作者： Lixiao Zhang Yimeng Liu Ya You Ajayan Vinu Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina International School of Materials Science and Engineering Wuhan University of TechnologyWuhanChina Global Innovative Center for Advanced Nanomaterials(GICAN) School of EngineeringCollege of EngineeringScienceand the EnvironmentThe University of NewcastleCallaghanNew South Wales 2308Australia

Solid-state electrolytes are critical for the development of next-generation high-energy and high-safety rechargeable *** all the candidates,sodium(Na)superionic conductors(NASICONs)are highly promising because of their evident advantages in high ionic conductivity and high chemical/electrochemical *** concept of NASICONs was proposed by Hong and Goodenough et *** 1976 by reporting the synthesis and characterization of Na1+xZr2(SixP3−x)O12(0≤x≤3),which has attracted tremendous attention on the NASICONs-type solid-state *** this review,we are committed to describing the development history of NASICONs-type solid-state electrolytes and elucidating the contribution of Goodenough as a tribute to *** summarize the correlations and differences between lithium-based and sodium-based NASICONs electrolytes,such as their preparation methods,structures,ionic conductivities,and the mechanisms of ion *** challenges of NASICONs-structured electrolytes are discussed,and several research directions are proposed to tackle the obstacles toward practical applications.

关键词： electrode/electrolyte interface grain boundary resistance high ionic conductivity NASICONs solid-state electrolyte

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Building a Highly Stable Ultrathin Nanoporous Layer Assisted by Glucose for Desalination

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Engineering 2022年第9期16卷 247-255页

作者： Yanqiu Zhang Fan Yang Hongguang Sun Yongping Bai Songwei Li Lu Shao MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage&State Key Laboratory of Urban Water Resource and Environment School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China MOE Key Laboratory of Materials Processing and Molding&National Engineering Research Center for Advanced Polymer Processing Technology Zhengzhou UniversityZhengzhou 450002China

Although nanoporous membranes are of great interest in desalination,it is still challenging to construct highly permeable nanoporous membranes with excellent rejections for an efficient desalination *** this work,highly permeable nanoporous membranes were built from renewable resources,assisted by the versatile functions of glucose and dopamine,with coupling reactive groups via interfacial reaction with 1,3,5-benzenetricarbonyl trichloride(TMC).The small molecules(0.66 nm)of glucose,which have high hydrophilicity,can diffuse into the membrane for an effective reaction to ensure structural *** novel ultrathin(~44 nm)nanofiltration(NF)membrane exhibits ultra-high Na_(2)SO_(4)flux and excellent rejection of Na_(2)SO_(4)(66.5 L·m^(-2)·h^(-1),97.3%)and MgSO4(63.0 L·m^(-2)·h^(-1),92.1%)under a pressure of 5 bar(1 bar=10^(5)Pa)which is much superior to the performance of natural-product NF *** membrane demonstrates excellent long-term stability,as well as tremendous acid-base and alkali-base stability and high anti-pollution *** designed membrane materials and architecture open a new door to biopolymer-based separation membranes beyond existing membrane materials.

关键词： Nanoporous membrane Renewable resources Nanofiltration Desalination Glucose

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Medium-entropy(Me,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)(Me=Y and Ta):Promising thermal barrier materials for high-temperature thermal radiation shielding and CMAS blocking

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Journal of materials Science & technology 2022年第28期123卷 144-153页

作者： Shuaihang Qiu Huimin Xiang Fu-Zhi Dai Hailong Wang Muzhang Huang Chunlei Wan Qing Meng Jiangtao Li Xiaohui Wang Yanchun Zhou Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials and Processing TechnologyBeijing 100076China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Technical Institute of Physics and Chemistry Chinese Academy of SciencesBeijing 100190China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

With continuous enhancement of gas-turbine inlet temperature and rapid increase of radiant heat transfer,thermal barrier coating(TBC)materials with a combination of low thermal conductivity and good high-temperature thermal radiation shielding performance play vital roles in ensuring the durability of metallic ***,yttria-stabilized zirconia(YSZ),as the state-of-the-art TBC and current industry standard,is unable to meet such demands since it is almost translucent to high-temperature thermal ***,poor corrosion resistance of YSZ to molten calcia-magnesia-alumina-silicates(CMAS)also impedes its application in sand,dust,or volcanic ash laden *** order to improve the hightemperature thermal radiation shielding performance and CMAS resistance of YSZ and further reduce its thermal conductivity,two medium-entropy(ME)oxide ceramics,ME(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)and ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2),were designed and prepared by pressureless sintering of binary powder compacts in this ***(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)presents cubic structure but a trace amount of secondary phase,while ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)displays a combination of tetragonal phase(81.6 wt.%)and cubic phase(18.4 wt.%).Both ME(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)and ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)possess better high-temperature thermal radiation shielding performance than ***,the high-temperature thermal radiation shielding performance of ME(Ta,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)is superior to that of ME(Y,Ti)_(0.1)(Zr,Hf,Ce)_(0.9)O_(2)due to its narrower band gap and correspondingly higher infrared absorbance(above 0.7)at the waveband of 1 to 5μ*** two ME oxides also display significantly lower thermal conductivity than YSZ and close thermal expansion coefficients(TECs)to YSZ and Ni-based *** addition,the two ME oxides possess excellent CMAS *** attack by molten CMAS at 1250℃for 4 h,merely~2μm thick penetration

关键词： Medium-entropy ceramics Thermal barrier coatings Thermal radiation shielding CMAS resistance Infrared absorbance

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Durable and Wearable Self-powered Temperature Sensor Based on Self-healing Thermoelectric Fiber by Coaxial Wet Spinning Strategy for Fire Safety of Firefighting Clothing

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advanced Fiber materials 2024年第5期6卷 1387-1401页

作者： Qing Jiang Yuhang Wan Yi Qin Xueru Qu Mi Zhou Siqi Huo Xiaochun Wang Zhicai Yu Hualing He State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Key Laboratory of Biomass Fibers and Eco-dyeing&FinishingSchool of Textile Science and EngineeringWuhan Textile UniversityWuhan 430200China Centre for Future Materials University of Southern QueenslandSpringfield Central 4300Australia School of Materials Design and Engineering Beijing Institute of Fashion TechnologyBeijing 100029China

Self-healable electronics with self-recoverable mechanical properties show a lot of potential in improving the reliability and durability of wearable electronic devices,but it is still ***,a self-healing core-sheath thermoelectric(TE)fiber-based temperature sensor was continuously fabricated by coaxial wet-spinning strategy,whose core layer and sheath layer are,respectively,pure Ti_(3)C_(2)T_(x)MXene and self-healing silk sericin(SS)/oxide sodium alginate(OSA)*** prepared SS/OSA@MXene core-sheath TE fiber exhibits accurate temperature-sensing at 200-400℃based on a linear relationship between TE voltage and temperature *** core-sheath TE fiber that can be integrated into firefighting clothing and timely alert firefighters to evacuate from the fire before the protective clothing becomes *** exposed to flames,SS/OSA@MXene can rapidly trigger a high-temperature warning voltage of 3.36 mV within 1.17 s and exhibit reversible high-temperature alarm *** addition,the fractured SS/OSA@MXene can restore up to 89.12%of its original strain limit at room temperature because of the robust yet reversible dynamic covalent bonds between SS and *** this study,an ingenious strategy for developing a durable and wearable TE fiber-based self-powered temperature sensor was *** strategy has promising application prospects in real-time temperature detection of firefighting clothing to ensure the safety of firefighters operating on a fire scene.

关键词： Core-sheath thermoelectric fiber Self-powered sensor High-temperature warning Self-healing Coaxial wet spinning

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Review on incorporation of alkali elements and their effects in Cu(In,Ga)Se_(2)solar cells

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Journal of materials Science & technology 2022年第1期96卷 179-189页

作者： Yazi Wang Shasha Lv Zhengcao Li State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Key Laboratory of Radiation Beam Technology and Material Modification(MOE) College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Key Laboratory of Advanced Materials(MOE) School of Materials Science and EngineeringTsinghua UniversityBeijing 100084Chinaa

Cu(In,Ga)Se_(2)(CIGS)is a promising candidate to replace crystalline silicon solar cells and dominate the photovoltaic market in the *** elements such as sodium(Na),potassium(K),rubidium(Rb),and Cesium(Cs)are commonly accepted as indispensable parts to boost cell efficiencies of CIGS thin-film solar ***,a comprehensive understanding of alkali effects on the electronic and chemical properties of the CIGS layer as well as the underlying mechanisms is of paramount importance for achieving high-performance solar *** paper reviews the development process and incorporation pathways of alkalis and then overviews the roles of different alkali elements and their effects on CIGS cells in ***,the unsolved problems and future development prospects are also ***,the understanding and development of widely adopted alkali-fluoride post-deposition treatments(PDTs)are still underway,and together with newly updated research,it will likely enable the CIGS technology to make the conversion efficiency closer to its theoretical limit.

关键词： Cu(In,Ga)Se_(2)(CIGS) Solar cells Post-deposition treatment(PDT) Alkali effects

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Self-assembled monolayers(SAMs)in inverted perovskite solar cells and their tandem photovoltaics application

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Interdisciplinary materials 2024年第2期3卷 203-244页

作者： Zijun Yi Xin Li Yuchen Xiong Guibin Shen Wenguang Zhang Yihuai Huang Qinghui Jiang Xin Ren Ng Yubo Luo Jianghui Zheng Wei Lin Leong Fan Fu Tongle Bu Junyou Yang State Key Laboratory of Material Processing and Die&Mould Technology Huazhong University of Science and TechnologyWuhanChina China‐Eu Institute for Clean and Renewable Energy Huazhong University of Science and TechnologyWuhanChina School of Electrical and Electronic Engineering Nanyang Technological UniversitySingaporeSingapore Department of Chemistry National University of SingaporeSingaporeSingapore School of Physics The University of SydneySydneyNew South WalesAustralia Laboratory for Thin Films and Photovoltaics Empa‐Swiss Federal Laboratories for Materials Science and TechnologyDübendorfSwitzerland State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina

Self-assembled monolayers(SAMs)employed in inverted perovskite solar cells(PSCs)have achieved groundbreaking progress in device efficiency and stability for both single-junction and tandem configurations,owing to their distinctive and versatile ability to manipulate chemical and physical interface *** this regard,we present a comprehensive review of recent research advancements concerning SAMs in inverted perovskite singlejunction and tandem solar cells,where the prevailing challenges and future development prospects in the applications of SAMs are *** thoroughly examine the mechanistic roles of diverse SAMs in energy-level regulation,interface modification,defect passivation,and charge *** is achieved by understanding how interfacial molecular interactions can be finely tuned to mitigate charge recombination losses in inverted *** this comprehensive review,we aim to provide valuable insights and references for further investigation and utilization of SAMs in inverted perovskite single‐junction and tandem solar cells.

关键词： inverted perovskite solar cells power conversion efficiency self-assembled monolayers tandem

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(K, Na)NbO3-based lead-free piezoceramics: one more step to boost applications

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National Science Review 2022年第10期9卷 13-15页

作者： Huan Liu Yi-Xuan Liu Aizhen Song Qian Li Yang Yin Fang-Zhou Yao Ke Wang Wen Gong Bo-Ping Zhang Jing-Feng Li State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University School of Materials Science and Engineering University of Science and Technology Center of Advanced Ceramic Materials and Devices Yangtze Delta Region Institute of Tsinghua University

Piezoelectric materials, as a conversion medium between mechanical and electrical energies, are widely used in actuators, sensors and sonar ***-based materials represented by lead zirconate titanate(PZT) have dominate...

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Nanostructured Pt@RuO_(x) catalyst for boosting overall acidic seawater splitting

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Chinese Journal of Structural Chemistry 2024年第1期43卷 6-15页

作者： Zimo Peng Quan Zhang Gaocan Qi Hao Zhang Qian Liu Guangzhi Hu Jun Luo Xijun Liu Institute for New Energy Materials&Low-Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyTianjin300384China School of Materials Science and Engineering Tianjin University of TechnologyTianjin 300384China Institute for Advanced Study Chengdu UniversityChengdu610106China Institute for Ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental ScienceYunnan UniversityKunming650091China ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaLonghua DistrictShenzhen518110China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsMOE Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning530004China

In the domain of acidic water splitting,designing bifunctional catalysts that marry high activity with enduring stability is a formidable ***,we have constructed platinum-containing ruthenium oxide nanoparticles(Pt@RuO_(x)NPs)to achieve excellent overall water splitting performance in acidic ***@RuO_(x)NPs demonstrate exceptional catalytic activity for both the hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)in acidic seawater,requiring overpotentials of only 20 and 157 mV,respectively to achieve a current density of 10 mA cm^(-2).Furthermore,in 0.5 M H_(2)SO_(4),this catalyst exhibits high HER(19 mV)and OER(236 mV)catalytic *** two-electrode water splitting system composed of bifunctional Pt@RuO_(x)NPs requires cell voltages of only 1.442 and 1.465 V to deliver a current density of 10 mA cm^(-2)in acidic seawater and 0.5 M H_(2)SO_(4).Remarkably,this catalyst displays remarkable stability in the water splitting *** is shown that the introduction of Pt could augment oxygen vacancies and enhance catalytic activity *** synergy between Pt and Ru further contributes to the improved ***,we have observed that acidic seawater holds distinct advantages for acidic water splitting,along with a thorough exploration of the relationship between Cl^(-)concentration and catalytic *** study not only provides a strategy to improve the catalytic activity and stability of ruthenium-based catalysts for water splitting in acidic environments,but also unveils the promoting effect of Cl^(-)on the catalytic activity in acidic water splitting.

关键词： Acidic water splitting Bifunctional catalysts Pt@RuOx nanoparticles Synergistic effect

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Interconnected Porous Fabric‑Based Scalable Evaporator with Asymmetric Wetting Properties for High‑Yield and Salt‑Rejecting Solar Brine Treatment

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advanced Fiber materials 2024年第4期6卷 1162-1173页

作者： Lipei Ren Qian Zhang Guomeng Zhao Tao Chen Yingao Wang Xingfang Xiao Hongjun Yang Ning Xu Weilin Xu State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200People’s Republic of China National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsNanjing UniversityNanjing 210093People’s Republic of China

Solar-driven interfacial evaporation has been considered as a promising approach for treating high-salinity brine,which mitigates ecological pollution as well as produces fresh *** the extensive research efforts,challenges remain regarding the stably high-yield solar treatment of high-salinity water on a large ***,we demonstrate an interconnected porous fabric-based scalable evaporator with asymmetric wetting properties fabricated by weaving technique for high-efficiency and salt-rejecting solar high-salinity brine ***-dimensional interconnected micropores ensure effective convection-induced fast vapor diffusion,leading to a high evaporation rate in the natural environment with the convective *** Janus structure effectively separates absorption and evaporation surfaces for stable salt resistance even under fast *** is observed that the evaporator achieves a high evaporation rate of 2.48 kg m^(-2)h^(-1)under 1-sun illumination and airflow of 3 m s^(-1)when treating 15 wt%***,the outdoor experiment demonstrates that there is neither salt precipitation on the surface nor a decrement in evaporation rate during the 5-day evaporation until water and solute have completely been *** interconnected porous fabric with asymmetric wetting properties can be easily and massively produced by industrialized weaving techniques,showing great potential for scalable and efficient solar water treatment of high-salinity brine and industrial wastewater.

关键词： Saline wastewater treatment Interfacial solar evaporation Janus fabrics Asymmetric wetting properties Airflow enhancement

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