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Elastic and Stretchable Functional Fibers: A Review of Materials, Fabrication Methods, and Applications

Advanced Fiber Materials 2021年第1期3卷 1-13页

作者： Mengxiao Chen Zhe Wang Kaiwei Li Xiandi Wang Lei Wei School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore Institute of Photonics Technology Jinan UniversityGuangzhou 511443China Department of Biomedical Engineering Key Laboratory for Biomedical Engineering of Ministry of EducationZhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness AppraisalZhejiang UniversityHangzhou 310027China cintra cnrs/ntu/thales UMI3288Research Techno Plaza50 Nanyang DriveSingapore 637553Singapore

Elastic and stretchable functional fibers have drawn attentions from wide research field because of their unique advantages including high dynamic bending elasticity,stretchability and high mechanic *** of efforts have been made to find promising soft materials and improve the processing methods to fabricate the elastomer fibers with controllable fiber geometries and designable *** progress has been made and various interdisciplinary applications have been demonstrated based on their unique mechanical performance.A series of remarkable applications,involving biomedicine,optics,electronics,human machine interfaces etc.,have been successfully ***,we summarize main processing methods to fabricate soft and stretchable functional fibers using different types of elastic materials,which are either widely used or specifically *** also introduce some representative applications of multifunctional elastic fibers to reveal this promising research *** these reported applications indicate that the fast innovated interdisciplinary area is of great potential and inspire more remarkable ideas in fiber sensing,soft electronics,functional fiber integration and other related research fields.

关键词： Elastic fibers Stretchable fibers Fiber sensing Multifunctional fibers

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All-optical control of exciton flow in a colloidal quantum well complex

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Light(Science & Applications) 2020年第1期9卷 1749-1756页

作者： Junhong Yu Manoj Sharma Ashma Sharma Savas Delikanli Hilmi Volkan Demir Cuong Dang LUMINOUS Centre of Excellence for Semiconductor Lighting and DisplaysSchool of Electrical and Electronic EngineeringThe Photonics Institute(TPI)Nanyang Technological University50 Nanyang Avenue639798 SingaporeSingapore Department of Electrical and Electronics Engineering and Department of Physics UNAM-Institute of Materials Science and NanotechnologyBilkent UniversityBilkent06800 AnkaraTurkey School of Physical and Mathematical Sciences Division of Physics and Applied PhysicsNanyang Technological University639798 SingaporeSingapore cintra UMI cnrs/ntu/thales 3288 Research Techno Plaza50 Nanyang DriveBorder X BlockLevel 6637553 SingaporeSingapore

Excitonics,an alternative to romising for processing information since semiconductor electronics is rapidly approaching the end of Moore’s ***,the development of excitonic devices,where exciton flow is controlled,is mainly focused on electric-field modulation or exciton polaritons in high-Q ***,we show an alloptical strategy to manipulate the exciton flow in a binary colloidal quantum well complex through mediation of the Förster resonance energy transfer(FRET)by stimulated *** the spontaneous emission regime,FRET naturally occurs between a donor and an *** contrast,upon stronger excitation,the ultrafast consumption of excitons by stimulated emission effectively engineers the excitonic flow from the donors to the ***,the acceptors’stimulated emission significantly accelerates the exciton flow,while the donors’stimulated emission almost stops this *** this basis,a FRET-coupled rate equation model is derived to understand the controllable exciton flow using the density of the excited donors and the unexcited *** results will provide an effective alloptical route for realizing excitonic devices under room temperature operation.

关键词： process flow quantum

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Real-time dynamics of soliton triplets in fiber lasers

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Photonics Research 2020年第6期8卷 884-891页

作者： YIYANG LUO RAN XIA PERRY PING SHUM WENJUN NI YUSONG LIU HUY QUOC LAM QIZHEN SUN XIAHUI TANG LUMING ZHAO cintra cnrs/ntu/thales UMI 3288Research Techno Plaza50 Nanyang DriveSingapore 637553Singapore School of Electrical and Electronic Engineering Nanyang Technological UniversitSingapore 639798Singapore School of Optical and Electronic Information&Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China Temasek Laboratories@ntu Research Techno Plaza50 Nanyang DriveSingapore 637553Singapore

The evolution of soliton molecules emphasizes the complex soliton dynamics akin to matter *** the simplest soliton molecule-a soliton pair constituted by two bound pulses-soliton molecules with more constituents have more degrees of freedom because of the temporal pulse separations and relative *** we detailedly characterize the transient dynamics of soliton triplets in fiber lasers by using the dispersive Fourier transform measurement.A particular form of leading,central,and tailing pulses is constructed to shed new light on more intriguing scenarios and fuel the molecular *** the vibrating dynamics of the central and tailing pulses are captured near the regime of equally spaced soliton triplets,which is reminiscent of the recurrent timing jitters within multi-pulse *** insights enable acess into a universal form of unequally spaced soliton triplets interpreted as 2+1 soliton *** binding strengths of intramo-lecular and intermolecular bonds are validated with respect to the diverse internal motions involved in this soliton triplet *** these findings unveil the transient dynamics with more degrees of freedom as well as highlight the possible application for all-optical bit storage.

关键词： fiber soliton dynamics

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Rambutan-like hollow carbon spheres decorated with vacancy-rich nickel oxide for energy conversion and storage

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Carbon Energy 2020年第1期2卷 122-130页

作者： Zixu Sun Xinghui Wang Hu Zhao See W.Koh Junyu Ge Yunxing Zhao Pingqi Gao Guangjin Wang Hong Li School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingaporeSingapore College of Physics and Information Engineering Institute of Micro-Nano Devices and Solar CellsFuzhou UniversityFuzhouChina Ningbo Institute of Material Technology and Engineering Chinese Academy of SciencesNingboChina School of Materials Science and Energy Engineering Foshan UniversityFoshanChina Centre for Micro-/Nano-electronics(NOVITAS) School of Electrical and Electronic EngineeringNanyang Technological UniversitySingaporeSingapore cintra cnrs/ntu/thales UMI 3288SingaporeSingapore

Transition metal oxides hold great promise for lithium-ion batteries(LIBs)and electrocatalytic water splitting because of their high abundance and high energy ***,designing and fabrication of efficient,stable,high power density electrode materials are ***,we report rambutan-like hollow carbon spheres formed by carbon nanosheet decorated with nickel oxide(NiO)rich inmetal vacancies(denoted as h-NiO/C)as a bifunctional electrode material for LIBs and electrocatalytic oxygen evolution reaction(OER).When being used as the anode of LIBs,the h-NiO/C electrode shows a large initial capacity of 885mAh g−1,a robust stability with a high capacity of 817mAh g−1 after 400 cycles,and great rate capability with a high reversible capacity of 523mAh g−1 at 10Ag−1 after 600 ***,working as an OER electrocatalyst,the h-NiO/C electrode shows a small overpotential of 260mV at 10mAcm−2,a Tafel slope of 37.6mVdec−1 along with good *** work offers a cost-effective method for the fabrication of efficient electrode for LIBs and OER.

关键词： bifunctional materials hollow sphere NiO/C nanoparticles oxygen vacancies rambutan-like structure

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The beauty of multi-active sites

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cMat 2024年第1期1卷 20-21页

作者： Yu-Qing Wang Sha-Sha Guo Zheng Liu School of Materials Science and Engineering Nanyang Technological UniversitySingaporeSingapore Department of Chemistry and Chemical Biology Cornell UniversityIthacaNew YorkUSA cintra cnrs/ntu/thales UMI 3288Research Techno PlazaSingaporeSingapore Institute for Functional Intelligent Materials National University of SingaporeSingaporeSingapore

The Sabatier principle—which states that the best catalyst should be at the peak of the volcano plot,with neither too strong nor too weak intermediate binding strength—plays the golden rule in designing highly active *** instance,Pt with a“just right”hydrogen adsorption free energy(ΔG_(H^(*))=~0 eV)is the most efficient catalyst for hydrogen evolution reaction(HER).^(1)Nevertheless,the pressing demand for renewable energy has sparked a quest beyond the top of the volcano plot,driving the innovation towards more effective,economical.

关键词： catalyst instance adsorption

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Surfactant-assisted hydrothermal synthesis of MoS_(2) micro-pompon structure with enhanced photocatalytic performance under visible light

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Tungsten 2020年第2期2卷 203-213页

作者： Man‑Zhang Xu Qiang Li Yuan‑Yuan Lv Zhi‑Ming Yuan Yu‑Xi Guo Han‑Jun Jiang Jiu‑Wei Gao Jun Di Pin Song Li‑Xing Kang Lu Zheng Zhi‑Yong Zhang Wu Zhao Xue‑Wen Wang Zheng Liu Frontiers Science Center for Flexible Electronics Xi’an Institute of Flexible Electronics(IFE)and Xi’an Institute of Biomedical Materials&EngineeringNorthwestern Polytechnical UniversityXi’an 710072China School of Information Science and Technology Northwest UniversityXi’an 710127China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore MIIT Key Laboratory of Flexible Electronics(KLoFE) Northwestern Polytechnical UniversityXi’an 710072China Centre for Micro‑/Nano‑Electronics(NOVITAS) School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore 639798Singapore cintra cnrs/ntu/thales and UMI 3288Research Techno PlazaSingapore 637553Singapore

MoS_(2) nanomaterial with the micro-pompon structure was synthesized by a surfactant-assisted hydrothermal *** morphologies and structures of as-prepared MoS_(2) micro-pompon were investigated by adding different types of surfactants such as cetyltrimethyl ammonium bromide(CTAB),sodium dodecylbenzene sulphonate(SDBS),and polyvinyl pyrrolidone(PVP).The results indicated that the morphology of MoS_(2) could be controlled and changed effectively by the cationic sur-factant of CTAB.A reasonable growth mechanism for hollow structured MoS_(2) micro-pompon by hydrothermal processes was ***,photocatalytic degradation properties of MoS_(2) micro-pompon under visible light were evaluated by degradation of common organic dyes,which include rhodamine B(RhB),congo red,methyl orange,and methylene *** results indicated that MoS_(2) micro-pompon owned the highly selective catalytic ability to RhB with degradation efficiency of 95%in 60 min and 68%in 30 *** the additive of the surfactant,the MoS_(2)-CTAB sample exhibited an enhanced ability of photocatalytic activity where degradation efficiency was improved to 92%in 30 *** method employed in this work could be expanded to fabricate other sulfides with the controllable morphology and structure to further regulate the photocatalytic performance.

关键词： Hydrothermal method MoS_(2)micro-pompon Surfactant-assistant Visible light photocatalytic Rhodamine B

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Sensing and lasing applications of whispering gallery mode microresonators

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Opto-Electronic Advances 2018年第9期1卷 1-10页

作者： Yu Zheng Zhifang Wu Perry Ping Shum Zhilin Xu Gerd Keiser Georges Humbert Hailiang Zhang Shuwen Zeng Xuan Quyen Dinh COFT School of EEE Nanyang Technological University Singapore 639798 Singapore cintra CNRS/NTU/Thales Research AllianceSingapore 637553 Singapore Fujian Key Laboratory of Light Propagation and Transformation College of Information Science and EngineeringHuaqiao University Xiamen 361021 China Center for Gravitational Experiments School of Physics Huazhong University of Science and Technology Wuhan 430074 China Department of Electrical and Computer Engineering Boston University Boston 02215 USA XLIM Research Institute UMR 7252 CNRS/University of Limoges Limoges 87060 France R&T Thales Solutions Asia Pte Ltd Singapore 498755Singapore

Optical whispering gallery mode （WGM） microresonators have attracted great attention due to their remarkable proper- ties such as extremely high quality factor, small mode volume, tight confinement of modes, and strong evanescent field. All these properties of WGM microresonators have ensured their great potentials for applications, such as physical sen- sors, bio/chemical sensors and microlasers. In this mini-review, the key parameters and coupling conditions of WGM microresonators are firstly introduced. The geometries of WGM optical microcavities are presented based on their fabri- cation methods. This is followed by the discussion on the state-of-the-art applications of WGM microresonators in sen- sors and microlasers.

关键词： WGM microresonators sensors microlasers microcavities

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用于神经形态学计算的低能耗、高稳定性2D-3D钙钛矿忆阻器

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Science China Materials 2023年第5期66卷 2013-2022页

作者：孙凯旋王庆瑞周龙王静娟常晶晶郭瑞 Beng Kang Tay 闫小兵 Key Laboratory of Brain-like Neuromorphic Devices and Systems of Hebei Province College of Electron and Information EngineeringHebei UniversityBaoding 071002China State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of MicroelectronicsXidian UniversityXi’an 710071China Centre for Micro-and Nano-Electronics(CMNE) School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore 639798Singapore UMI 3288 cintra(cnrs-ntu-thales Research Alliances) Nanyang Technological UniversitySingapore 637553Singapore

近年来,有机-无机卤化物钙钛矿在忆阻器和人工突触器件等电子器件中的应用取得了快速进展.由于其离子迁移特性和制造上的优势,有机-无机卤化物钙钛矿有望成为下一代计算设备的候选材料.本文采用ITO/FA_(1-y)MA_(y)PbI_(3-x)Cl_(x)/(PEA)... 详细信息

近年来,有机-无机卤化物钙钛矿在忆阻器和人工突触器件等电子器件中的应用取得了快速进展.由于其离子迁移特性和制造上的优势,有机-无机卤化物钙钛矿有望成为下一代计算设备的候选材料.本文采用ITO/FA_(1-y)MA_(y)PbI_(3-x)Cl_(x)/(PEA)_(2)PbI_(4)/Au的叠层结构,研究了2D-3D有机-无机杂化钙钛矿忆阻器.结果表明,这种新型忆阻器具有新颖的电阻开关特性,如扫描速率相关的电流开关特性、良好的电流-电压曲线重复性和超低能耗.利用p-i-n结模型证实了缺陷调制电子隧穿机制,并证明了忆阻器件的电导状态由电极侧附近钙钛矿薄膜中的缺陷浓度决定.除了良好的忆阻特性外,这种2D-3D钙钛矿型忆阻器还可以很好地用作人工突触,其内部缺陷运动可以真实地模拟生物突触中Ca^(2+)的流入和挤出.此外,由于有机-无机卤化物钙钛矿中的可切换p-i-n结构,这种基于钙钛矿的人工突触具有超低功耗.我们的发现展示了2D-3D钙钛矿忆阻器在未来神经形态计算系统中的巨大应用潜力.

关键词： perovskite ion migration memristor low energy consumption neuromorphic computing

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Strong nonlinear optical processes with extraordinary polarization anisotropy in inversionsymmetry broken two-dimensional PdPSe

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Light(Science & Applications) 2024年第8期13卷 1524-1533页

作者： Song Zhu Ruihuan Duan Xiaodong Xu Fangyuan Sun Wenduo Chen Fakun Wang Siyuan Li Ming Ye Xin Zhou Jinluo Cheng Yao Wu Houkun Liang Junichiro Kono Xingji Li Zheng Liu Qi Jie Wang School of Electrical and Electronic Engineering Nanyang Technological University639798 SingaporeSingapore School of Material Science and Engineering Nanyang Technological University639798 SingaporeSingapore cintra cnrs/ntu/thales UMI 3288Research Techno PlazaNanyang Technological University637371 SingaporeSingapore School of Materials Science and Engineering Harbin Institute of Technology150001 HarbinChina Department of Chemistry National University of Singapore117543 SingaporeSingapore GPL Photonics Lab State Key Laboratory of Applied OpticsChangchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of Sciences130033 ChangchunChina School of Electronics and Information Engineering Sichuan University610064 ChengduSichuanChina School of Physical and Mathematical Sciences Nanyang Technological University637371 SingaporeSingapore Departments of Electrical and Computer Engineering Physics and Astronomyand Materials Science and NanoEngineeringRice UniversityHoustonTXUSA

Nonlinear optical activities,especially second harmonic generation(SHG),are key phenomena in inversion-symmetrybroken two-dimensional(2D)transition metal dichalcogenides(TMDCs).On the other hand,anisotropic nonlinear optical processes are important for unique applications in nano-nonlinear photonic devices with polarization functions,having become one of focused research topics in the field of nonlinear ***,the strong nonlinearity and strong optical anisotropy do not exist simultaneously in common 2D ***,we demonstrate strong secondorder and third-order susceptibilities of 64 pm/V and 6.2×10^(-19)m^(2)/V^(2),respectively,in the even-layer PdPSe,which has not been discovered in other common TMDCs(e.g.,MoS2).Strikingly,it also simultaneously exhibited strong SHG anisotropy with an anisotropic ratio of~45,which is the largest reported among all 2D materials to date,to the best of our *** addition,the SHG anisotropy ratio can be harnessed from 0.12 to 45(375 times)by varying the excitation wavelength due to the dispersion ofχ^(2)*** an illustrative example,we further demonstrate polarized SHG imaging for potential applications in crystal orientation identification and polarization-dependent spatial *** findings in 2D PdPSe are promising for nonlinear nanophotonic and optoelectronic applications.

关键词： materials anisotropy nonlinear

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Phase-pure two-dimensional Fe_(X)GeTe_(2) magnets with near-room-temperature Tc

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Nano Research 2022年第1期15卷 457-464页

作者： Govindan Kutty Rajendran Nair Zhaowei Zhang Fuchen Hou§ Ali Abdelaziem Xiaodong Xu Steve Wu Qing Yang Nan Zhang Weiqi Li Chao Zhu Yao Wu Heng Weiling Lixing Kang Teddy Salim Jiadong Zhou Lin Ke Junhao Lin Xingji Li Weibo Gao Zheng Liu School of Material Science and Engineering 50 Nanyang Ave639798Singapore Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological University21 Nanyang Link637371 Singapore Department of Physics Southern University of Science and TechnologyShenzhen 518055China Institute of Materials Research and Engineering Agency for Science Technology and Research(A*STAR)2 Fusionopolis WaySingapore 138634Singapore School of Material Science and Engineering School of PhysicsHarbin Institute of TechnologyHarbin 150001China Shenzhen Key Laboratory of for Advanced Quantum Functional Materials and Devices Southern University of Science and TechnologyShenzhen 518055China National Institute of Laser Enhanced Sciences(NILES) Cairo UniversityGiza 12613Egypt cintra cnrs/ntu/thales UMI3288Research Techno Plaza637553Singapore School of Electrical and Electronic Engineering Nanyang Technological University50 Nanyang Ave639798Singapore

Two-dimensional(2D)ferromagnets with out-of-plane(OOP)magnetic anisotropy are potential candidates for realizing the next-generation memory devices with ultra-low power consumption and high storage ***,a scalable approach to synthesize 2D magnets with OOP anisotropy directly on the complimentary metal-oxide semiconductor(CMOS)compatible substrates has not yet been mainly explored,which hinders the practical application of 2D *** work demonstrates a cascaded space confined chemical vapor deposition(CS-CVD)technique to synthesize 2D FexGeTe_(2) *** weight fraction of iron(Fe)in the precursor controls the phase purity of the as-grown *** a result,high-quality Fe_(3)GeTe_(2) and Fe_(5)GeTe_(2) flakes have been grown selectively using the CS-CVD *** temperature(Tc)of the as-grown FexGeTe2 can be up to-280 K,nearly room *** thickness and temperature-dependent magnetic studies on the Fe_(5)GeTe_(2) reveal a 2D Ising to 3D XY ***,Terahertz spectroscopy experiments on Fe_(5)GeTe_(2) display the highest conductivity among other FexGeTe_(2) 2D *** results of this work indicate a scalable pathway for the direct growth and integration of 2D ternary magnets on CMOS-based substrates to develop spintronic memory devices.

关键词： cascaded space confined chemical vapor deposition(CVD) van der Waals(vdW) ferromagnetism out of plane anisotropy iron germanium telluride terahertz

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