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materials science, multidisciplinary (122) 122
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1. Full Text Raman spectroscopy and imaging of graphene
by Ni, Zhenhua and Wang, Yingying and Yu, Ting and Shen, Zexiang
Nano Research, ISSN 1998-0124, 10/2008, Volume 1, Issue 4, pp. 273 - 291
Graphene has many unique properties that make it an ideal material for fundamental studies as well as for potential applications. Here we review recent results... 
Biotechnology | Chemistry | Materials Science | substrate effect | Graphene | Atomic and Molecular Structure and Spectra | Condensed Matter | Raman spectroscopy and imaging | device application | Biomedicine general | Nanotechnology | PHYSICS, APPLIED | MATERIALS SCIENCE, MULTIDISCIPLINARY | CHEMISTRY, PHYSICAL | NANOSCIENCE & NANOTECHNOLOGY | Carbon | Spectrum analysis | Electronic properties | Nanocomposites | Imaging | Nanomaterials | Nanostructure | Epitaxial growth | Raman spectroscopy
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2. Full Text Monolayer Graphene as a Saturable Absorber in a Mode-Locked Laser
by Qiaoliang Bao Han Zhang Zhenhua Ni Yu Wang Lakshminarayana Polavarapu Zexiang Shen Qing-Hua Xu Dingyuan Tang Kian Ping Loh
纳米研究：英文版, ISSN 1998-0124, 2011, Volume 4, Issue 3, pp. 297 - 307
We demonstrate that the intrinsic properties of monolayer graphene allow it to act as a more effective saturable absorber for mode-locking fiber lasers when... 
超短激光脉冲 | 散射损耗 | 可饱和吸收 | 单层 | 石墨 | 锁模光纤激光器 | 锁模激光 | 调制深度 | Condensed Matter Physics | Biotechnology | laser | Graphene | carrier dynamics | Materials Science, general | Atomic/Molecular Structure and Spectra | Material Science | saturable absorber | Nanotechnology | Biomedicine general | ultrafast photonics | Carrier dynamics | Ultrafast photonics | Laser | Saturable absorber | NORMAL DISPERSION | FIBER LASERS | PHYSICS, APPLIED | MATERIALS SCIENCE, MULTIDISCIPLINARY | CHEMISTRY, PHYSICAL | NANOSCIENCE & NANOTECHNOLOGY | GRAPHITE | ATOMIC-LAYER GRAPHENE | CARBON NANOTUBES | LIFETIME | FILMS | SPECTROSCOPY | FEMTOSECOND | Multilayers | Nanocomposites | Scattering | Modulation | Monolayers | Nanomaterials | Nanostructure
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3. Full Text Study on phase formation mechanism of non- and near-stoichiometric Cu 2ZnSn(S,Se)4 film prepared by selenization of Cu-Sn-Zn-S precursors
by Yin, Xuesong and Tang, Chunhua and Sun, Linfeng and Shen, Zexiang and Gong, Hao
Chemistry of Materials, ISSN 0897-4756, 03/2014, Volume 26, Issue 6, pp. 2005 - 2014
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4. Full Text A library of atomically thin metal chalcogenides
by Zhou, Jiadong and Lin, Junhao and Huang, Xiangwei and Zhou, Yao and Chen, Yu and Xia, Juan and Wang, Hong and Xie, Yu and Yu, Huimei and Lei, Jincheng and Wu, Di and Liu, Fucai and Fu, Qundong and Zeng, Qingsheng and Hsu, Chuang-Han and Yang, Changli and Lu, Li and Yu, Ting and Shen, Zexiang and Lin, Hsin and Yakobson, Boris I and Liu, Qian and Suenaga, Kazu and Liu, Guangtong and Liu, Zheng and Rice Univ., Houston, TX (United States)
Nature, ISSN 0028-0836, 04/2018, Volume 556, Issue 7701, pp. 355 - 359
Investigations of two-dimensional transition-metal chalcogenides (TMCs) have recently revealed interesting physical phenomena, including the quantum spin Hall... 
TRANSITION | WSE2 | PHASE | MOO3 | MULTIDISCIPLINARY SCIENCES | GROWTH | MONOLAYER | LARGE-AREA SYNTHESIS | LAYERS | Chemical properties | Transition metal compounds | Chemical synthesis | Analysis | Polarization (spin alignment) | Transition metals | Salts | Fourier transforms | Growth rate | Metal compounds | Metals | Quantum Hall effect | Iron | Hall effect | Sulfurization | Niobium | Chalcogenides | Metal oxides | Molybdenum disulfide | Platinum | Spectrum analysis | Hafnium | Titanium | Libraries | Low temperature | Ceramic powders | Melting | Quaternary | Research & development--R&D | Tungsten disulfide | Superconductivity | Melting points | Chemical vapor deposition | Organic chemistry | Tantalum | Zirconium | Monolayers | Melting point | Science & Technology - Other Topics
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5. Full Text Nitrogen-doped graphene-supported transition-metals carbide electrocatalysts for oxygen reduction reaction
by Chen, Minghua and Liu, Jilei and Zhou, Weijiang and Lin, Jianyi and Shen, Zexiang
Scientific Reports, ISSN 2045-2322, 05/2015, Volume 5, Issue 1, pp. 10389 - 10389
A novel and facile two-step strategy has been designed to prepare high performance bi-transition-metals (Fe- and Mo-) carbide supported on nitrogen-doped... 
ELECTROCHEMICAL EXFOLIATION | ACTIVE-SITES | PERFORMANCE | MULTIDISCIPLINARY SCIENCES | OXIDE-FILMS | MEDIA | PEM FUEL-CELLS | IRON | TUNGSTEN CARBIDE | CATALYSTS | COBALT | Chemical reduction | Oxygen | Catalysts | Toxicity | Metals | Electron transfer | Lithium | Batteries | Immunological tolerance | Potassium chloride
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6. Recent advances in air electrodes for Zn-air batteries: Electrocatalysis and structural design
by Cai, Xiaoyi and Lai, Linfei and Lin, Jianyi and Shen, Zexiang
Materials Horizons, ISSN 2051-6347, 11/2017, Volume 4, Issue 6, pp. 945 - 976
Zn–air batteries have attracted significant attention because of their high energy density, environmental friendliness, safety, and low cost. The air cathode... 
Air batteries | Structural design | Catalysts | Electrocatalysts | Metal nitrides | Dissolution | Electrocatalysis | Researchers | Flux density | Electrolytes | Cathodic dissolution | Catalysis | Chemical evolution | Cathodes
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7. Full Text Planar super-oscillatory lens for sub-diffraction optical needles at violet wavelengths
by Yuan, Guanghui and Rogers, Edward T.F and Roy, Tapashree and Adamo, Giorgio and Shen, Zexiang and Zheludev, Nikolay I
Scientific Reports, ISSN 2045-2322, 2014, Volume 4, Issue 1, p. 6333
Planar optical lenses are fundamental elements of miniaturized photonic devices. However, conventional planar optical lenses are constrained by the diffraction... 
SUPERRESOLUTION | DESIGN | MULTIDISCIPLINARY SCIENCES | RESOLUTION | BINARY | CREATION | POLARIZED-LIGHT | VORTEX | Spectroscopy | Frequency dependence | Diffraction | Spatial discrimination | Electromagnetic radiation | Needles | Microscopes | Polarized light | Circular dichroism
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8. Full Text Ordered array of gold semishells on TiO 2 spheres: An ultrasensitive and recyclable SERS substrate
by Li, Xianglin and Hu, Hailong and Li, Dehui and Shen, Zexiang and Xiong, Qihua and Li, Shuzhou and Fan, Hong Jin
ACS Applied Materials and Interfaces, ISSN 1944-8244, 04/2012, Volume 4, Issue 4, pp. 2180 - 2185
TiO | Surface-enhanced Raman scattering | photocatalytic degradation | semishell | recyclable | ordered array
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9. Full Text Bandgap engineering of graphene: A density functional theory study
by Liu, Lei and Shen, Zexiang
Applied Physics Letters, ISSN 0003-6951, 12/2009, Volume 95, Issue 25, pp. 252104 - 252104-3
Three ways of engineering the bandgap of graphene, i.e., surface bonding, isoelectronic codoping, and alternating electrical/chemical environment, are analyzed... 
PHYSICS, APPLIED | BILAYER GRAPHENE | EPITAXIAL GRAPHENE
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10. Full Text Valley polarization in stacked MoS2 induced by circularly polarized light
by Juan Xia Xingli Wang Beng Kang Tay Shoushun Chen Zheng Liu Jiaxu Yan Zexiang Shen
纳米研究：英文版, ISSN 1998-0124, 2017, Volume 10, Issue 5, pp. 1618 - 1626
Manipulation of valley pseudospins is crucial for future valleytronics. lhe emerging transition metal dichalcogenides （TMDs） provide new possibilities for... 
ultra-low-frequency Raman spectroscopy | molybdenum disulfide | first-principles calculations | valley polarization | circularly polarized photoluminescence | PHYSICS, APPLIED | PHOTOLUMINESCENCE | MATERIALS SCIENCE, MULTIDISCIPLINARY | GRAPHENE | CHEMISTRY, PHYSICAL | NANOSCIENCE & NANOTECHNOLOGY | SPIN POLARIZATION | MONOLAYER WSE2 | EXCITONS | WANNIER FUNCTIONS | SPINTRONICS | WS2 | GENERATION | COHERENCE | Interlayers | Polarization | Degrees of freedom | Stacking | Optical pumping | Chemical vapor deposition | Electron spin | Polarized light | Circular dichroism | Molybdenum disulfide | Valleys | Monolayers | Dichroism | Coupling | Magnetic fields
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11. Full Text Iron oxide-decorated carbon for supercapacitor anodes with ultrahigh energy density and outstanding cycling stability
by Guan, Cao and Liu, Jilei and Wang, Yadong and Mao, Lu and Fan, Zhanxi and Shen, Zexiang and Zhang, Hua and Wang, John
ACS Nano, ISSN 1936-0851, 05/2015, Volume 9, Issue 5, pp. 5198 - 5207
Supercapacitor with ultrahigh energy density (e.g., comparable with those of rechargeable batteries) and long cycling ability (>50000 cycles) is attractive for... 
energy density | atomic layer deposition | cycling stability | metal oxide | supercapacitor anode | PERFORMANCE | MATERIALS SCIENCE, MULTIDISCIPLINARY | GRAPHENE | CHEMISTRY, PHYSICAL | NANOSCIENCE & NANOTECHNOLOGY | CHEMISTRY, MULTIDISCIPLINARY | LITHIUM-ION BATTERY | HOLLOW SPHERES | ELECTROCHEMICAL CAPACITORS | ATOMIC-LAYER-DEPOSITION | HYBRID FILM | STORAGE APPLICATIONS | STATE ASYMMETRIC SUPERCAPACITORS | METAL-OXIDES
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12. Full Text Controlled Synthesis of High-Quality Monolayered α-In2Se3 via Physical Vapor Deposition
by Zhou, Jiadong and Zeng, Qingsheng and Lv, Danhui and Sun, Linfeng and Niu, Lin and Fu, Wei and Liu, Fucai and Shen, Zexiang and Jin, Chuanhong and Liu, Zheng
Nano Letters, ISSN 1530-6984, 10/2015, Volume 15, Issue 10, pp. 6400 - 6405
In this work, we have demonstrated the synthesis of high-quality monolayered α-In2Se3 using physical vapor deposition method under atmospheric pressure. The... 
high mobility | monolayer | 2D materials | PVD
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13. Full Text Generation of ultralarge Surface Enhanced Raman Spectroscopy (SERS)-active hot-spot volumes by an array of 2D nano-superlenses
by Wei, Khokiang and Zexiang, Shen and Malini, Olivo
Analytical Chemistry, ISSN 0003-2700, 01/2012, Volume 84, Issue 2, pp. 908 - 916
Surface Enhanced Raman Spectroscopy (or SERS) has received tremendous attention in the past three decades. However, the extremely-confined probe volume (1 nm)... 
Cytochromes c - chemistry | Gold - chemistry | Nanotechnology - methods | Metal Nanoparticles - chemistry | Surface Properties | Nanostructures - chemistry | Spectrum Analysis, Raman | Lenses | Usage | Research | Raman spectroscopy | Macromolecules | Analysis
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14. Full Text Plasma Modified MoS2 Nanoflakes for Surface Enhanced Raman Scattering
by Sun, Linfeng and Hu, Hailong and Zhan, Da and Yan, Jiaxu and Liu, Lei and Teguh, Jefri S and Yeow, Edwin K. L and Lee, Pooi See and Shen, Zexiang
Small, ISSN 1613-6810, 03/2014, Volume 10, Issue 6, pp. 1090 - 1095
Though the SERS effect based on pristine MoS2 is hardly observed, however, the plasma treated MoS2 nanoflakes can be used as an ideal substrate for surface... 
surface enhanced raman scattering (SERS) | plasma treatment | MoS2 | local dipole | Plasma physics
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15. Full Text Large‐Area and High‐Quality 2D Transition Metal Telluride
by Zhou, Jiadong and Liu, Fucai and Lin, Junhao and Huang, Xiangwei and Xia, Juan and Zhang, Bowei and Zeng, Qingsheng and Wang, Hong and Zhu, Chao and Niu, Lin and Wang, Xuewen and Fu, Wei and Yu, Peng and Chang, Tay‐Rong and Hsu, Chuang‐Han and Wu, Di and Jeng, Horng‐Tay and Huang, Yizhong and Lin, Hsin and Shen, Zexiang and Yang, Changli and Lu, Li and Suenaga, Kazu and Zhou, Wu and Pantelides, Sokrates T and Liu, Guangtong and Liu, Zheng and Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States) and Chinese Academy of Sciences (CAS), Beijing (China) and National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan) and Nanyang Technological Univ. (Singapore) and National Tsing Hua Univ., Hsinchu (Taiwan) and Vanderbilt Univ., Nashville, TN (United States)
Advanced Materials, ISSN 0935-9648, 01/2017, Volume 29, Issue 3, pp. 1603471 - n/a
Large‐area and high‐quality 2D transition metal tellurides are synthesized by the chemical vapor deposition method. The as‐grown WTe2 maintains two different... 
WTe2 | chemical vapor deposition | 2D materials | MoTe2 | WTe | MoTe | PHYSICS, CONDENSED MATTER | THERMODYNAMIC PROPERTIES | PHYSICS, APPLIED | SUPERCONDUCTIVITY | MOLYBDENUM-DISULFIDE | MATERIALS SCIENCE, MULTIDISCIPLINARY | MONO | CHEMISTRY, PHYSICAL | SEMIMETAL | NANOSCIENCE & NANOTECHNOLOGY | LAYER MOSE2 | CHEMISTRY, MULTIDISCIPLINARY | TUNGSTEN DITELLURIDE WTE2 | GROWTH | MONOLAYER | MOTE2 | Transition metal compounds | Chemical vapor deposition | Tellurides | Scanning electron microscopy | Transmission electron microscopy | Intermetallic compounds | Stacking | Superconductivity | Scanning transmission electron microscopy | Atomic structure | Chemical synthesis | Transition metals | Intermetallics | Boundaries | Transport | MATERIALS SCIENCE
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16. Full Text Exploration of the active center structure of nitrogen-doped graphene-based catalysts for oxygen reduction reaction
by Lai, Linfei and Potts, Jeffrey R and Zhan, Da and Wang, Liang and Poh, Chee Kok and Tang, Chunhua and Gong, Hao and Shen, Zexiang and Lin, Jianyi and Ruoff, Rodney S
Energy and Environmental Science, ISSN 1754-5692, 07/2012, Volume 5, Issue 7, pp. 7936 - 7942
We present two different ways to fabricate nitrogen-doped graphene (N-graphene) and demonstrate its use as a metal-free catalyst to study the catalytic active... 
OXIDE | SEARCH | ENERGY & FUELS | PLATINUM | ELECTRODES | GRAPHITE | PEMFCS | CHEMISTRY, MULTIDISCIPLINARY | ARRAYS | ENGINEERING, CHEMICAL | ENVIRONMENTAL SCIENCES | MEMBRANE FUEL-CELLS | HIGH ELECTROCATALYTIC ACTIVITY | ELECTROCHEMICAL CHARACTERIZATION | Ammonia | Annealing | Catalysts | Graphene | Oxides | Polypyrroles | Catalysis | Polyanilines
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17. Full Text Three-dimensional graphene foam supported Fe3O4 lithium battery anodes with long cycle life and high rate capability
by Luo, Jingshan and Liu, Jilei and Zeng, Zhiyuan and Ng, Chi Fan and Ma, Lingjie and Zhang, Hua and Lin, Jianyi and Shen, Zexiang and Fan, Hong Jin
Nano Letters, ISSN 1530-6984, 12/2013, Volume 13, Issue 12, pp. 6136 - 6143
Fe3O4 has long been regarded as a promising anode material for lithium ion battery due to its high theoretical capacity, earth abundance, low cost, and... 
iron oxide | 3D graphene foam | atomic layer deposition | lithium ion battery | Li ion storage | high rate capability | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | CARBON | MATERIALS SCIENCE, MULTIDISCIPLINARY | ALPHA-FE2O3 | CHEMISTRY, PHYSICAL | NANOSCIENCE & NANOTECHNOLOGY | CHEMISTRY, MULTIDISCIPLINARY | REDUCED GRAPHENE | NANOPARTICLES | ULTRAFAST-CHARGE | HIGH-PERFORMANCE ANODE | OXIDE FILMS | NANOSTRUCTURED MATERIALS | COMPOSITE ANODE | Electrodes | Electric Power Supplies | Lithium - chemistry | Surface Properties | Nanostructures - chemistry | Ferric Compounds - chemistry | Graphite - chemistry
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18. Full Text High Mobility 2D Palladium Diselenide Field‐Effect Transistors with Tunable Ambipolar Characteristics
by Chow, Wai Leong and Yu, Peng and Liu, Fucai and Hong, Jinhua and Wang, Xingli and Zeng, Qingsheng and Hsu, Chuang‐Han and Zhu, Chao and Zhou, Jiadong and Wang, Xiaowei and Xia, Juan and Yan, Jiaxu and Chen, Yu and Wu, Di and Yu, Ting and Shen, Zexiang and Lin, Hsin and Jin, Chuanhong and Tay, Beng Kang and Liu, Zheng
Advanced Materials, ISSN 0935-9648, 06/2017, Volume 29, Issue 21, pp. 1602969 - n/a
Due to the intriguing optical and electronic properties, 2D materials have attracted a lot of interest for the electronic and optoelectronic applications.... 
field‐effect transistors | high mobility | palladium diselenide | 2D materials | ambipolar | field-effect transistors | CONTACTS | PHYSICS, CONDENSED MATTER | MONOLAYER MOS2 | PHYSICS, APPLIED | TRANSPORT-PROPERTIES | MATERIALS SCIENCE, MULTIDISCIPLINARY | GRAPHENE | CHEMISTRY, PHYSICAL | NANOSCIENCE & NANOTECHNOLOGY | CHEMISTRY, MULTIDISCIPLINARY | DENSITY | PHOTODETECTORS | BLACK PHOSPHORUS | VALLEY POLARIZATION | LAYER | MODULATION | Annealing | Palladium | Transition metal compounds | Field-effect transistors | Vacuum annealing | Optoelectronics | Electronic properties | Semiconductor devices | Field effect transistors | Optical properties | Vanadium | Doping | Polarity | Transport | Transistors
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