1. Accession number: ip52300178




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Database: Compendex

Compilation and indexing terms, © 2012 Elsevier Inc.

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149. Accession number: 20123615388171

Title: Faraday rotation effect in periodic graphene structure

Authors: Liu, Daqing1 ; Zhang, Shengli1 ; Ma, Ning1 ; Li, Xinghua2

Author affiliation: 1 Department of Applied Physics, Non-equilibrium Condensed Matter and Quantum Engineering Laboratory, Xi'An Jiaotong University, Xi'an 710049, China

2 Physics and Optic-Electronics Technology College, Fujian Normal University, Fuzhou 350007, China

Corresponding author: Liu, D. (liudq@mail.xjtu.edu.cn)

Source title: Journal of Applied Physics

Abbreviated source title: J Appl Phys

Volume: 112

Issue: 2

Issue date: July 15, 2012

Publication year: 2012

Article number: 023115

Language: English

ISSN: 00218979

CODEN: JAPIAU

Document type: Journal article (JA)

Publisher: American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States

Abstract: We report the magneto-optical (MO) rotation effect in a periodic graphene-sheet structure. Due to the masslessness of carriers in graphene, the magnetic response is very sensitive and the magneto-optical rotation effect is therefore significant. We predict that the Verdet constant of the periodic graphene-sheet structure is roughly 10-100 times that of rare-earth-doped magneto-optical glass in the infrared region. © 2012 American Institute of Physics.

Number of references: 22

Main heading: Periodic structures

Controlled terms: Graphene - Optical glass - Optical rotation

Uncontrolled terms: Faraday rotation effect - Infrared regions - Magnetic response - Magneto-optical - Magneto-optical rotations - Rotation effect - Verdet constant

Classification code: 741.1 Light/Optics - 741.3 Optical Devices and Systems - 761 Nanotechnology - 804 Chemical Products Generally - 933 Solid State Physics

DOI: 10.1063/1.4737614

Database: Compendex

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150. Accession number: 20122915254136

Title: Medium effects close to s- and p-wave Feshbach resonances in atomic Fermi gases

Authors: Liao, Renyuan1, 2; Quader, Khandker F.3

Author affiliation: 1 College of Physics and Energy, Fujian Normal University, Fuzhou 350108, China

2 National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

3 Physics Department, Kent State University, Kent, OH 44240, United States

Corresponding author: Liao, R.

Source title: Physical Review A - Atomic, Molecular, and Optical Physics

Abbreviated source title: Phys Rev A

Volume: 86

Issue: 1

Issue date: July 10, 2012

Publication year: 2012

Article number: 012704

Language: English

ISSN: 10502947

E-ISSN: 10941622

CODEN: PLRAAN

Document type: Journal article (JA)

Publisher: American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States

Abstract: Many-body effects may influence properties, such as scattering parameters, nature of pairing, etc., close to a Feshbach resonance in the fermion BEC-BCS crossover problem. We study effects such as these using a tractable crossing-symmetric approach. This method allow us to include quantum fluctuations, such as density, current, spin, spin-current, and the higher-order fluctuations in a self-consistent fashion. The underlying fermion interaction is reflected in the "driving" term. We perform calculations here on both Bose-Einstein condensate (BEC) and BCS sides and taking the driving term to be finite range and of arbitrary strength. These are related to two-body singlet and triplet scattering parameters and can be connected with experimental s- and p-wave Feshbach resonances. We include the =0 density and spin fluctuations as well as =1 current and spin-current fluctuations. We calculate renormalized scattering amplitudes, pairing amplitudes, nature of pairing, etc., on both the BEC and BCS sides. We then compare our results qualitatively with experiments. © 2012 American Physical Society.

Number of references: 31

Main heading: Spin fluctuations

Controlled terms: Electron gas - Fermions - Quantum electronics - Resonance - Scattering - Scattering parameters - Seismic waves - Statistical mechanics

Uncontrolled terms: Atomic Fermi gas - BEC-BCS crossover - Bose-Einstein condensates - Feshbach resonances - Many-body effect - Medium effect - P-wave Feshbach resonance - Pairing amplitude - Quantum fluctuation - Scattering amplitudes

Classification code: 931.3 Atomic and Molecular Physics - 931.1 Mechanics - 744 Lasers - 711 Electromagnetic Waves - 703.1 Electric Networks - 701 Electricity and Magnetism - 484 Seismology

DOI: 10.1103/PhysRevA.86.012704

Database: Compendex

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151. Accession number: 20122615178023

Title: Direct synthesis of high-density lead sulfide nanowires on metal thin films towards efficient infrared light conversion

Authors: Wu, Hengkui1; Yang, Yiming1; Oh, Eunsoon2; Lai, Fachun3; Yu, Dong1

Author affiliation: 1 Department of Physics, University of California, Davis, CA 95616, United States

2 Department of Physics, Chungnam National University, Daejeon, 305-764, Korea, Republic of

3 School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou 350007, China

Corresponding author: Wu, H.

Source title: Nanotechnology

Abbreviated source title: Nanotechnology

Volume: 23

Issue: 26

Issue date: July 5, 2012

Publication year: 2012

Article number: 265602

Language: English

ISSN: 09574484

E-ISSN: 13616528

CODEN: NNOTER

Document type: Journal article (JA)

Publisher: Institute of Physics Publishing, Temple Circus, Temple Way, Bristol, BS1 6BE, United Kingdom

Abstract: We report chemical-vapor-deposition (CVD) synthesis of high-density lead sulfide (PbS) nanowire arrays and nano pine trees directly on Ti thin films, and the fabrication of photovoltaic devices based upon the PbS nanowires. The as-grown nanowire arrays are largely vertically aligned to the substrates and are uniformly distributed over a relatively large area. Field effect transistors incorporating single PbS nanowires show p-type conduction and high mobilities. These catalytic metal thin films also serve as photocarrier collection electrodes and greatly facilitate device integration. For the first time, we have fabricated Schottky junction photovoltaic devices incorporating PbS nanowires, which demonstrate the capability of converting near-infrared light to electricity. The PbS nanowire devices are stable in air and their external quantum efficiency shows no significant decrease over a period of 3months in air. We have also compared the photocurrent direction and quantum efficiencies of photovoltaic devices made with different metal electrodes, and the results are explained by band bending at the Schottky junction. Our research shows that PbS nanowires are promising building blocks for collecting near-infrared solar energy. © 2012 IOP Publishing Ltd.

Number of references: 28

Main heading: Nanowires

Controlled terms: Chemical vapor deposition - Deposition - Electrodes - Field effect transistors - Infrared devices - Photovoltaic effects - Quantum efficiency - Thin films - Vapors

Uncontrolled terms: As-grown - Bandbending - Building blockes - Catalytic metals - Device integration - Direct synthesis - External quantum efficiency - High mobility - High-density - Infrared light - Lead sulfide - Metal electrodes - Metal thin film - Nanowire arrays - Nanowire devices - Near Infrared - Near infrared light - P-Type conduction - Photocarrier - Photovoltaic devices - Pine trees - Schottky junctions - Ti thin films - Vertically aligned

Classification code: 931.4 Quantum Theory; Quantum Mechanics - 813.1 Coating Techniques - 804 Chemical Products Generally - 802.2 Chemical Reactions - 933 Solid State Physics - 761 Nanotechnology - 741.1 Light/Optics - 714.2 Semiconductor Devices and Integrated Circuits - 714.1 Electron Tubes - 741.3 Optical Devices and Systems

DOI: 10.1088/0957-4484/23/26/265602

Database: Compendex

Compilation and indexing terms, © 2012 Elsevier Inc.

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152. Accession number: 20121614947063

Title: Preparation and characterization of bamboo fibers coated with urushiol-ferric and its composite with polypropylene

Authors: Xue, Hanyu1; Chen, Qinhui1, 2; Lin, Jinhuo1

Author affiliation: 1 College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian 350007, China

2 Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350007, China

Corresponding author: Lin, J. (jhlin@fjnu.edu.cn)

Source title: Journal of Applied Polymer Science

Abbreviated source title: J. Appl. Polym. Sci.

Volume: 125

Issue: 1

Issue date: July 5, 2012

Publication year: 2012

Pages: 439-447

Language: English

ISSN: 00218995

E-ISSN: 10974628

CODEN: JAPNAB

Document type: Journal article (JA)

Publisher: John Wiley and Sons Inc., P.O.Box 18667, Newark, NJ 07191-8667, United States

Abstract: To improve the interfacial adhesion of bamboo powder/plastic composites by using natural coupling agents, bamboo fibers (BFs) coated with urushiol-ferric (BCFeU) were obtained via in situ polymerization and BCFeU/ polypropylene (PP) composites were prepared. Direct correlations were found between coating ratio of BCFeU and activation time, concentration of urushiol, reaction time and concentration of ferric chloride. Five methods consisting of polarizing microscope, scanning electron microscope, X-ray photoelectron spectroscope, thermo gravimetric analysis, and differential scanning calorimetry were used to characterize the BCFeU. The results show that BCFeU was obtained successfully. Urushiol-ferric compounds were coated on the BFs by hydrogen bonding. Tensile test results and scanning electron microscope analysis of tensile fracture surfaces showed that urushiol-ferric acted as a coupling agent in BCFeU/PP composite. This results in 56% increase in elongation at break and 46% increase in maximum deflection of BCFeU/PP composite (compared with that of BF/PP composite) while there was no evident of variation in tensile strength and bending strength. Copyright © 2011 Wiley Periodicals, Inc.

Number of references: 29

Main heading: Composite coatings

Controlled terms: Adhesion - Bamboo - Chlorination - Chlorine compounds - Coatings - Composite materials - Coupling agents - Differential scanning calorimetry - Hydrogen bonds - Polypropylenes - Propylene - Reinforcement - Scanning electron microscopy - Tensile strength - Tensile testing - Thermogravimetric analysis - Thermoplastics

Uncontrolled terms: Activation time - Bamboo fibers - Biofibers - Elongation at break - Ferric chloride - In-situ polymerization - Interfacial adhesions - Maximum deflection - Natural coupling - Polarizing microscopes - poly propylene (PP) - Scanning Electron Microscope - Tensile fracture surfaces - Tensile tests - X-ray photoelectron spectroscope

Classification code: 803 Chemical Agents and Basic Industrial Chemicals - 804.1 Organic Compounds - 811 Cellulose, Paper and Wood Products - 811.1 Pulp and Paper - 813.2 Coating Materials - 815.1.1 Organic Polymers - 951 Materials Science - 802.2 Chemical Reactions - 415 Metals, Plastics, Wood and Other Structural Materials - 421 Strength of Building Materials; Mechanical Properties - 422 Strength of Building Materials; Test Equipment and Methods - 422.2 Strength of Building Materials : Test Methods - 741.1 Light/Optics - 801 Chemistry - 801.4 Physical Chemistry

DOI: 10.1002/app.35645

Database: Compendex

Compilation and indexing terms, © 2012 Elsevier Inc.

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153. Accession number: 20123215327391

Title: Synthesis and properties of poly(1,3-dialkoxybenzene)s from facile solvent-free grinding oxidative coupling polymerization

Authors: Bai, Weibin1 ; Chen, Kuizhi1; Xu, Yanlian2; Wang, Jingwei1; Luo, Zhen1; Lin, Jinhuo2

Author affiliation: 1 College of Chemistry and Material Science, Fujian Normal University, Fuzhou 350007, China

2 Key Laboratory of Polymer Materials, Fuzhou 350007, China

Corresponding author: Bai, W. (bai-wb@163.com)

Source title: Polymer Bulletin

Abbreviated source title: Polym. Bull.

Volume: 69

Issue: 2

Issue date: July 2012

Publication year: 2012

Pages: 125-135

Language: English

ISSN: 01700839

CODEN: POBUDR

Document type: Journal article (JA)

Publisher: Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany

Abstract: Soluble conjugated aromatic poly(1,3-dialkoxybenzene)s were obtained in high yield up to 80% in 30 min by grinding 1,3-dialkoxybenzene with anhydrous FeCl3 powder in a mortar at ambient and solvent-free condition. The polymers were characterized by FT-IR, 1H-NMR, 13C-NMR, and gel permeation chromatography. The structure of the aromatic rings linkage at meta-position was confirmed. Thermogravimetric analysis, UV-Vis, fluorescence spectroscopy, and four-probe a.c. technique were used to probe the thermal, optical, and electrical properties of the polymers. The polymers displayed high thermostability with the decomposition temperatures at about 382-388 °C. The optical energy gap (Eg) of the polymers was 4.23 eV and electrical conductivity at room temperature was 10-6 S cm-1. The fluorescence curve of the polymers displayed the maximum at 344 nm in CH2Cl 2 solution. The morphology of the polymers was determined by X-ray diffraction and scanning electron microscope technique. © Springer-Verlag 2012.

Number of references: 20

Main heading: Grinding (machining)

Controlled terms: Conjugated polymers - Electric conductivity - Fluorescence spectroscopy - Gel permeation chromatography - Polymerization - Probes - Scanning electron microscopy - Solvents - Thermogravimetric analysis - X ray diffraction

Uncontrolled terms: 3-dialkoxybenzene)s - Aromatic rings - Decomposition temperature - Electrical conductivity - Four-probe - High yield - Optical energy gap - Oxidative coupling polymerization - Poly(1 - Room temperature - Scanning Electron Microscope - Solvent free - Solvent free conditions

Classification code: 943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring Instruments - 931.3 Atomic and Molecular Physics - 815.2 Polymerization - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 815.1.1 Organic Polymers - 801 Chemistry - 741.1 Light/Optics - 701.1 Electricity: Basic Concepts and Phenomena - 606.2 Abrasive Devices and Processes - 803 Chemical Agents and Basic Industrial Chemicals
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