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Naked-eye observation of water-forming reaction on palladium etalon:transduction of gas-matter reaction into light-matter interaction

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PhotoniX 2023年第1期4卷 349-363页

作者： Jongsu Lee Eui-Sang Yu Taehyun Kim In Soo Kim Seok Chung Seung Jae Kwak Won Bo Lee Yusin Pak Yong-Sang Ryu Sensor System Research Center Korea Institute of Science and TechnologySeoul 02792Republic of Korea department of Electrical and Computer engineering Seoul National UniversitySeoul 08826Republic of Korea Smart Materials Research Section Electronics and Telecommunications Research InstituteDaejeon 34129Republic of Korea department of Micro/Nano Systems Korea University02841 SeoulRepublic of Korea Nanophotonics Research Center Korea Institute of Science and TechnologySeoul 02792Republic of Korea School of Mechanical engineering Korea UniversitySeoul 02841Republic of Korea School of Chemical and Biological engineering Seoul National UniversitySeoul 08826Republic of Korea Interdisciplinary Program in Precision Public Health Korea UniversitySeoul 02481Republic of Korea School of Biomedical engineering Korea UniversitySeoul 02481Republic of Korea

Palladium is the most prominent material in both scientific and industrial research on gas storage,purification,detection,and catalysis due to its unique properties as a catalyst and hydrogen *** the dynamic optical phenomena of palladium reacting with hydrogen,transduction of the gas-matter reaction into light-matter interaction is attempted to visualize the dynamic surface chemistry and reaction *** simple geometry of the metal-dielectric-metal structure,Fabry-Perot etalon,is employed for a colorimetric reactor,to display the catalytic reaction of the exposed gas via water-film/bubble formation at the dielectric/palladium *** adsorption/desorption behavior and catalytic reaction of hydrogen and oxygen on the palladium surface display highly repeatable and dramatic color changes based on two distinct water formation trends:the foggy effect by water bubbles and the whiteout effect by water film *** and experiments demonstrate the robustness of the proposed Fabry-Perot etalon as an excellent platform for monitoring the opto-physical phenomena driven by heterogeneous catalysis.

关键词： Palladium Hydrogen Oxygen Fabry-Perot resonators Colorimetric sensors Water-forming reaction

Exfoliated FePS nanosheets for T-weighted magnetic resonance imaging-guided near-infrared photothermal therapy in vivo

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Science China Materials 2021年第10期64卷 2613-2623页

作者： Ying Zhang Hongfang Du Panpan He Chuang Shen Qi Li Yefan Duan Zhouwei Shao Fei Mu Feng Huang Peiyang Li Pingqi Gao Peng Yu Zhimin Luo Lianhui Wang State Key Laboratory of Organic electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Electronic and Optical Engineering&College of MicroelectronicNanjing University of Posts and TelecommunicationsNanjing 210023China School of Materials Science and engineering State Key Laboratory of Optoelectronic Materials and TechnologiesSchool of MaterialsSun Yat-sen UniversityGuangzhou 510275China department of Human Anatomy School of Basic Medical SciencesKey Laboratory of Brain Aging and Neurodegenerative Diseases of Fujian ProvinceFujian Medical UniversityFuzhou 350122China

Developing bifunctional nanoplatforms integrating advanced biological imaging with high-performance therapeutic functions is interesting for nanoscience and ***,thin-layered FePS3 nanosheets modified with amine polyethylene glycol(FePS3-PEG)are synthesized by ultrasonicated exfoliation of bulk Fe PS3 single crystals under Ar atmosphere and in situ chemical functionalization with amine *** prepared Fe PS3-PEG nanosheets give a photothermal conversion efficiency of 22.1%under 808-nm laser and evident T1relaxation(r1=2.69(mmol L^(-1))^(-1)S^(-1))in external magnetic *** experimental results in vitro and in vivo demonstrate that Fe PS3-PEG nanosheets have good biocompatibility and exhibit excellent photothermal therapy(PTT)effect under clear T1-weighted magnetic resonance imaging(MRI).The characteristics of Fe PS3-PEGnanosheets enable them to be a promising nanomedicine for T1-weighted MRI-guided near-infrared PTT of cancers.

关键词： photothermal therapy near infrared T1 magnetic resonance imaging thin-layered Fe PS3nanosheets bifunctional nanomedicine

Theory and techniques for“intellicise”wireless networks

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Frontiers of Information Technology & Electronic engineering 2022年第1期23卷 1-4页

作者： Ping ZHANG Mugen PENG Shuguang CUI Zhaoyang ZHANG Guoqiang MAO Zhi QUAN Tony Q.S.QUEK Bo RONG State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing100876China School of Science and engineering The Chinese University of Hong Kong(Shenzhen)Shenzhen518172China College of Information Science and Electronic engineering Zhejiang UniversityHangzhou310027China Research Institute of Smart Transportation Xidian UniversityXi’an710071China College of electronics and Information engineering Shenzhen UniversityShenzhen518060China department of Information Systems Technology and Design Singapore University of Technology and DesignSingapore487372Singapore Communications Research Centre Canada OttawaOntarioK2K 2Y7Canada

With the acceleration of a new round of global scientific,technological,and industrial revolution,the next generation of information and communication technology,i.e.,6G,will inject new momentum into industry transformation and upgrading,as well as into economic innovation and *** will subsequently promote a global industrial *** communication will be ubiquitous in all areas of future society,supporting novel applications with various performance requirements.

关键词： communication networks supporting

QoS-aware interference management for vehic-ular D2D relay networks

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Journal of Communications and Information Networks 2017年第2期2卷 75-90页

作者： Tinghan Yang Xiang Cheng Xia Shen Shanzhi Chen Liuqing Yang State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Engineering and Computer SciencePeking UniversityBeijing 100871China State Key Laboratory of Integrated Services Networks Xidian UniversityXi'an 710126China China Academy of Information and Communication Technology Beijing 100191China State Key Laboratory of Wireless Mobile Communications China Academy of Telecommunications Technology(CATT)Beijing 100094China department of Electrical and Computer engineering Colorado State UniversityFort Collins CO 80523USA

Vehicular network communication technology is currently attracting a considerable amount of *** consider a scenario in which vehicular communication nodes share the same spectrum resources and generate interference with other *** with traditional interference-avoiding vehicular communications,this paper aims to increase the number of accessed communication links under the premise of satisfying the required *** our research,communication nodes have opportunities to select relay nodes to both help improve their data transmissions and reduce their transmit power in order to decrease interference with other links while still satisfying their QoS *** on these objectives,we propose an innovative interference management method that considers link selection,power adaption,and communication mode selection simultaneously to maximize the number of communication links with the lowest power *** with traditional link-selection and power-adaption interference management schemes,the proposed scheme improves QoS satisfaction with high energy *** results demonstrate both the effciency and the e ectiveness of the proposed scheme.

关键词： vehicular networks interference management link selection power adaption energy eciency

Wireless communications empowered by reconfigurable intelligent surfaces: Model-based vs model-free channel estimation

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Journal of Information and Intelligence 2023年第3期1卷 253-266页

作者： Li Wei Chongwen Huang George C.Alexandropoulos Ahmet M.Elbir Zhaohui Yang Zhaoyang Zhang Marco Di Renzo Merouane Debbah Chau Yuen engineering Product Development Pillar Singapore University of Technology and DesignSingapore 487372Singapore College of Information Science and Electronic engineering Zhejiang UniversityHangzhou 310027China department of Informatics and telecommunications National and Kapodistrian University of Athens15784 AthensGreece Interdisciplinary Centre for Security Reliability and TrustUniversity of LuxembourgL-4365 Esch-sur-AlzetteLuxembourgand Duzce UniversityDuzce 81620Turkey Universite Paris-Saclay CNRSCentraleSupelecLaboratoire des Signaux et Systemes91192France Khalifa university of Science and Technology Abu DhabiUnited Arab Emirates School of Electrical and electronics engineering Nanyang Technological UniversitySingapore 639798Singapore

Reconfigurable intelligent surfaces(RISs)are lately being attractive for their great potential in future sixth generation wireless communications(6G),which is attributed to their affordable energy consumption and easy ***,the large numbers of low-cost reflecting elements comprising RISs impose challenges for channel acquisition in various RIS-based wireless applications,such as RIS-enhanced orthogonal frequency-division multiplexing and multi-user multipleinput multiple-output *** this article,we first overview the state-of-the-art RIS hardware architectures designed to assist channel estimation for RIS-empowered wireless communication *** also overview existing channel estimation approaches,which are categorized into model-based and model-free techniques,and discuss their advantages and limitations depending on the RIS *** challenges with RIS-empowered systems in terms of hardware and other parameter limitations are presented,together with future research directions for channel estimation in RIS-based wireless systems,such as RISs with extremely large numbers of elements,multi-hop communications with RISs,and frequency division duplexing for high mobility systems.

关键词： Reconfigurable intelligent surfaces Channel estimation Model-based methods Model-free methods

Integrated silicon ohotonic MEMS

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Microsystems & Nanoengineering 2023年第2期9卷 227-248页

作者： Niels Quack Alain Yuji Takabayashi Hamed Sttari Pieirre Edinger Gaehun Jo Simon JBleker Carlos Errando-Herranz Kristinn BGylfason Frank Niklaus Umar Khan Peter Verheyen Arun Kumar Malik Jun Su Lee Moises Jezzini Padraic Morrissey Cleitus Antony Peter O'Brien Wim Bogaertso Ecole Polytechnique Federale de Lausanne(EPFL) 1015 LausanneSwitzerland school of Aerospace Mechanical and Mechatronic EngineeringThe University of SydneyCamperdownNSW 2006Australia swiss Center for electronics and Microtechnology(CSEM) 2002 NeuchatelSwitzerland Division of Micro and Nanosystems KTH Royal Institute of Technology11428 StockholmSweden department of Information Technology Photonics Research GroupGhent University-IMECTechnologiepark-Zwijnaarde 1269052 GentBelgium imec vzw.3DSIP department Si Photonics GroupKapeldreef 753001 LeuvenBelgium Tyndall National Institute Lee Maltings Complex Dyke ParadeCork T12 R5CPIreland

Silicon photonics has emerged as a mature technology that is expected to play a key role in critical emerging applications,including very high data rate optical communications,distance sensing for autonomous vehicles,photonic-accelerated computing,and quantum information *** success of silicon photonics has been enabled by the unique combination of performance,high yield,and high-volume capacity that can only be achieved by standardizing manufacturing ***,standardized silicon photonics technology platforms implemented by foundries provide access to optimized library components,including low-loss optical routing,fast modulation,continuous tuning,high-speed germanium photodiodes,and high-effciency optical and electrical ***,silicon's relatively weak electro-optic effects result in modulators with a significant footprint and thermo-optic tuning devices that require high power consumption,which are substantial impediments for very large-scale integration in silicon *** systems(MEMS)technology can enhance silicon photonics with building blocks that are compact,low-loss,broadband,fast and require very low power ***,we introduce a silicon photonic MEMS platform consisting of high-performance nano-opto-electromechanical devices fully integrated alongside standard silicon photonics foundry components,with wafer-level sealing for long-term reliability,flip-chip bonding to redistribution interposers,and fibre-array attachment for high port count optical and electrical *** experimental demonstration of fundamental silicon photonic MEMS circuit elements,including power couplers,phase shifters and wavelength-division multiplexing devices using standardized technology lifts previous impediments to enable scaling to very large photonic integrated circuits for applications in telecommunications,neuromorphic computing,sensing,programmable photonics,and quantum computing.

关键词： tuning sealing photonics

Birefringence-Managed Normal-Dispersion Fiber Laser Delivering Energy-Tunable Chirp-Free Solitons

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Ultrafast Science 2022年第4期2卷 9-20页

作者： Dong Mao Zhiwen He Qun Gao Chao Zeng Ling Yun Yueqing Du Hua Lu Zhipei Sun Jianlin Zhao Northwestern Polytechnical university School of Physical Science and TechnologyKey Laboratory of Light Field Manipulation and Information AcquisitionMinistry of Industry and Information TechnologyShaanxi Key Laboratory of Optical Information TechnologyXianChina 7101292 Nanjing university of Posts and telecommunications College of Electronic and Optical Engineering College of MicroelectronicsNanjingChina 210046 Aalto university Department of Electronics and Nanoengineering and QTF Centre of ExcellenceAaltoFinland

Chirp-free solitons have been mainly achieved with anomalous-dispersion fiber lasers by the balance of dispersive and nonlinear effects,and the single-pulse energy is constrained within a relatively small ***,we report a class of chirp-free pulse in normal-dispersion erbium-doped fiber lasers,termed birefringence-managed soliton,in which the birefringence-related phasematching effect dominates the soliton *** harmonic mode locking from 5 order to 85 order is obtained at the same pump level of~10 mW with soliton energy fully tunable beyond ten times,which indicates a new birefringencerelated soliton energy law,which fundamentally differs from the conventional soliton energy *** unique transformation behavior between birefringence-managed solitons and dissipative solitons is directly visualized via the singleshot *** results demonstrate a novel approach of engineering fiber birefringence to create energy-tunable chirpfree solitons in normal-dispersion regime and open new research directions in fields of optical solitons,ultrafast lasers,and theirapplications.

关键词： fiber tunable pump

Recent progress on surface chemistryⅠ:Assembly and reaction

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Chinese Chemical Letters 2024年第12期35卷 43-94页

作者： Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen Qi Chen Ting Chen Fang Cheng Lifeng Chi Wenjie Dong Zhenchao Dong Shixuan Du Qitang Fan Xing Fan Qiang Fu Song Gao Jing Guo Weijun Guo Yang He Shimin Hou Ying Jiang Huihui Kong Baojun Li Dengyuan Li Jie Li Qing Li Ruoning Li Shuying Li Yuxuan Lin Mengxi Liu Peinian Liu Yanyan Liu Jingtao Lü Chuanxu Ma Haoyang Pan JinLiang Pan Minghu Pan Xiaohui Qiu Ziyong Shen Shijing Tan Bing Wang Dong Wang Li Wang Lili Wang Tao Wang Xiang Wang Xingyue Wang Xueyan Wang Yansong Wang Yu Wang Kai Wu Wei Xu Na Xue Linghao Yan Fan Yang Zhiyong Yang Chi Zhang Xue Zhang Yang Zhang Yao Zhang Xiong Zhou Junfa Zhu Yajie Zhang Feixue Gao Yongfeng Wang Center for Carbon-based electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China Spin-X Institute School of MicroelectronicsSouth China University of TechnologyGuangzhou 511442China School of Materials and Energy Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage DevicesGuangdong University of TechnologyGuangzhou 510006China Faculty of Materials Science and engineering Kunming University of Science and TechnologyKunming 650093 China i-Lab CAS Key Laboratory of Nanophotonic Materials and DevicesSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory for Organic electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Hefei National Research Center for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Institute of Physics&university of Chinese Academy of Sciences Beijing 100190China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Chemistry Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China School

Surface chemistry focuses on the investigation of the adsorption,migration,assembly,activation,reaction,and desorption of atoms and molecules at *** chemistry plays the pivotal roles in both fundamental science and applied *** review will summarize the recent progresses on surface assembly,synthesis and catalysis investigated mainly by scanning tunneling microscopy and atomic force *** assemblies of water and small biomolecules,construction of Sierpin′ski triangles and surface chirality are ***-surface synthesis of conjugated carbo-and heterocycles and other kinds of carbon nanostructures are *** model catalysis,including single-atom catalysis and electrochemical catalysis,are discussed at the single-atom level.

关键词： Surface chemistry Assembly Surface synthesis Catalysis on surface Surface electrochemical processes

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二维材料最新研究进展

物理化学学报 2021年第12期37卷 1-151页

作者：常诚陈伟陈也陈永华陈雨丁峰樊春海范红金范战西龚成宫勇吉何其远洪勋胡晟胡伟达黄维黄元季威李德慧李连忠李强林立凌崇益刘鸣华刘楠刘庄 Kian Ping Loh 马建民缪峰彭海琳邵明飞宋礼苏邵孙硕谭超良唐智勇王定胜王欢王金兰王欣王欣然 Andrew T.S.Wee 魏钟鸣吴宇恩吴忠帅熊杰熊启华徐伟高尹鹏曾海波曾志远翟天佑张晗张辉张其春张铁锐张翔赵立东赵美廷赵伟杰赵运宣周凯歌周兴周喻朱宏伟张华刘忠范 Institute of Science and Technology Austria Am Campus 13400 KlosterneuburgAustria department of Chemistry National University of Singapore3 Science Drive 3117543Singapore department of Chemistry The Chinese University of Hong KongShatinNew TerritoriesHong KongChina Key Laboratory of Flexible electronics and Institute of Advanced Materials Nanjing Tech UniversityNanjing 211816China School of Life Sciences Shanghai UniversityShanghai 200444China Centre for Multidimensional Carbon Materials Institute for Basic ScienceUlsan 44919Korea School of Chemistry and Chemical engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore department of Chemistry City University of Hong KongKowloonHong KongChina department of Electrical and Computer engineering and Quantum Technology Center University of MarylandCollege ParkMaryland 20742USA School of Materials Science and engineering Beihang UniversityBeijing 100191China department of Materials Science and engineering City University of Hong KongKowloonHong KongChina Center of Advanced Nanocatalysis(CAN) Hefei National Laboratory for Physical Sciences at the MicroscaleDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China College of Chemistry and Chemical engineering State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials(iChEM)Xiamen UniversityXiamen361005Fujian ProvinceChina State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-Nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China School of Optical and Electronic Information Wuhan National Laboratory

Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief backgroundintroduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials(PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

关键词： Two-dimensional materials Transition metal dichalcogenides Phase engineering of nanomaterials electronics Optoelectronics Catalysis Energy storage and conversion