Advanced Materials

Cover image for Vol. 23 Issue 9

Special Issue: Tsinghua University Centennial Celebration

March 4, 2011

Volume 23, Issue 9

Pages 1035–1165

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Materials Science at Tsinghua University: (Adv. Mater. 9/2011) (page 1035)

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201190021

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      This is a Special Issue dedicated to Tsinghua University (Beijing, China) on the occasion of her Centennial Anniversary. It includes eleven papers covering nanomaterials research, carbon-based materials, organic optoelectronics, metallic materials, and functional soft materials, reflecting the wealth of ways in which chemistry and physics are at play to produce advanced materials at Tsinghua University. Cover design by Fang Liu, and photography by Rui Li.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Bimetallic Nanocrystals: Bimetallic Nanocrystals: Liquid-Phase Synthesis and Catalytic Applications (Adv. Mater. 9/2011) (page 1036)

      Dingsheng Wang and Yadong Li

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201190022

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      Bimetallic nanocrystals with core-shell, heter-ostructure, or intermetallic and alloyed structures are attracting more and more attention from researchers. They display not only a combination of properties associated with the two distinct metals, but also new properties, and therefore have significant applications in various fields. on p. 1044, Yadong Li and co-workers review recent progress in liquid-phase synthesis of bimetallic nanocrystals and their catalytic applications.

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
  4. Editorial

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
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  5. Review

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Bimetallic Nanocrystals: Liquid-Phase Synthesis and Catalytic Applications (pages 1044–1060)

      Dingsheng Wang and Yadong Li

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/adma.201003695

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      Bimetallic nanocrystals with core/shell, heterostructure, or intermetallic and alloyed structures are attracting more and more attention from researchers. They display not only a combination of properties associated with two distinct metals, but also new properties, and therefore have significant applications in various fields. This paper reviews the recent progress in liquid-phase synthesis of bimetallic nanocrystals and their catalytic applications.

  6. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Recent Progress in Multiferroic Magnetoelectric Composites: from Bulk to Thin Films (Adv. Mater. 9/2011) (page 1061)

      Jing Ma, Jiamian Hu, Zheng Li and Ce-Wen Nan

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201190024

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      Recent progress in multiferroic magnetoelectric composite systems is reviewed by Ce-wan Nan and co-workers. Strong magnetoelectric couplings across the magnetic-ferroelectric interface lead to magnetic (or electric)-field control of electrical polarization (or magnetization), which promises new device applications such as sensors, transducers, oscillators, and phase shift and memory devices. on p. 1062

  7. Review

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Recent Progress in Multiferroic Magnetoelectric Composites: from Bulk to Thin Films (pages 1062–1087)

      Jing Ma, Jiamian Hu, Zheng Li and Ce-Wen Nan

      Version of Record online: 19 JAN 2011 | DOI: 10.1002/adma.201003636

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      Recent progress in multiferroic magnetoelectric composite systems such as bilayered magnetic-ferroelectric heterostructures where magnetic and ferroelectric orders coexist are reviewed. Strong magnetoelectric couplings across the magnetic-ferroelectric interface lead to magnetic (or electric)-field control of electric polarization (or magnetization), which promises new device applications such as sensors, transducer, oscillators, phase shifters, memory devices, and so on, controlled both electrically and magnetically.

  8. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Functional Composite Materials Based on Chemically Converted Graphene (Adv. Mater. 9/2011) (page 1088)

      Hua Bai, Chun Li and Gaoquan Shi

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201190025

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      Recent advances in the preparation and applications of the composite materials based on chemically converted graphene have been reviewed by Hua Bai, Chun Li, and Gaoquan Shi. They demonstrate how different methods can be used to blend graphene with other nanomaterials, leading to composites with multiple functions. on p. 1089

  9. Progress Report

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
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    10. Progress Report
    11. Frontispiece
    12. Communications
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    14. Research News
    1. Functional Composite Materials Based on Chemically Converted Graphene (pages 1089–1115)

      Hua Bai, Chun Li and Gaoquan Shi

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/adma.201003753

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      The recent advancements in the studies of the composites of chemically converted graphene (CCG) and small molecules, polymers, inorganic nanoparticles, or other carbon nanomaterials are reviewed. The methodology for preparing CCG and its composites has been summarized, and the applications of CCG-based functional composite materials are also discussed.

  10. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
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    14. Research News
    1. DNA HYDROGELS: Self-Assembled DNA Hydrogels with Designable Thermal and Enzymatic Responsiveness (Adv. Mater. 9/2011) (page 1116)

      Yongzheng Xing, Enjun Cheng, Yang Yang, Ping Chen, Tao Zhang, Yawei Sun, Zhongqiang Yang and Dongsheng Liu

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201190026

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      An easy and versatile approach to constructing DNA hydrogels is reported by Dongsheng Liu and co-workers. DNA building blocks, Y-scaffolds and linkers, can self-assemble into hydrogels by hybridization of their sticky ends. The DNA hydrogels undergo a solgel transition upon heating or enzymatic treatment, and this responsiveness can be adjusted by tailoring the sequence of building blocks. on p. 1117

  11. Communications

    1. Top of page
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    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
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    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Self-Assembled DNA Hydrogels with Designable Thermal and Enzymatic Responsiveness (pages 1117–1121)

      Yongzheng Xing, Enjun Cheng, Yang Yang, Ping Chen, Tao Zhang, Yawei Sun, Zhongqiang Yang and Dongsheng Liu

      Version of Record online: 22 DEC 2010 | DOI: 10.1002/adma.201003343

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      An easy and versatile approach to construct DNA hydrogels is reported. The DNA building blocks, a Y-scaffold and a linker, can self-assemble into DNA hydrogels by the hybridization of their “sticky ends”. It is shown that the DNA hydrogels undergo a sol-gel transition upon heat or enzymatic treatment, and these responsiveness can be adjusted by tailoring the sequence of the building blocks.

    2. Graphene Functionalized with Azo Polymer Brushes: Surface-Initiated Polymerization and Photoresponsive Properties (pages 1122–1125)

      Dongrui Wang, Gang Ye, Xiaolin Wang and Xiaogong Wang

      Version of Record online: 21 JAN 2011 | DOI: 10.1002/adma.201003653

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      Azo polymer brushes (G-PCN) on graphene nanosheets are prepared through a “grafting-from” approach. The effect of the graphene nanosheets on photoinduced surface modulation is investigated by irradiating solid films of azo molecular glass (Tr-Az-CN) containing the nanosheets with interfering Ar+ laser beams. By formation of a surface-relief grating, a very significant increase in the growth rate and saturated value of the diffraction efficiency is observed for Tr-Az-CN doped with G-PCN at very low content (0.5 wt%).

    3. Hierarchical Carbon-Coated LiFePO4 Nanoplate Microspheres with High Electrochemical Performance for Li-Ion Batteries (pages 1126–1129)

      Yongmin Wu, Zhenhai Wen and Jinghong Li

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201003713

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      Hierarchical LFP/C (LiFePO4) nanoplate microspheres are prepared via a facile template-free route by self-assembling porous microspheres of the interconnected network nanoplate building blocks, and are then further modified with carbon. The self-assembled hierarchical nanocomposites with open porous, flexible, and stable structures show improved rate capability and excellent cycle life, and have potential application in advanced Li-ion batteries.

    4. Construction of Amphiphilic Polyoxometalate Mesostructures as a Highly Efficient Desulfurization Catalyst (pages 1130–1135)

      Amjad Nisar, Jing Zhuang and Xun Wang

      Version of Record online: 31 JAN 2011 | DOI: 10.1002/adma.201003520

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      Several amphiphilic polyoxometalate (POM) mesostructures are constructed (see figure), which not only exhibit enhanced catalytic efficiencies for oxidation of sulfides but also provide easy and fast catalyst recovery from the reaction system. These amphiphilic POM building blocks show interesting self-assembly behavior at room temperature, and uniform POM-based nanowires and nanotubes are obtained, the structures of which depend greatly on the lengths of the alkyl chains in the surfactants.

  12. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. AMBIPOLAR CHARGE TRANSPORT: Strategies to Design Bipolar Small Molecules for OLEDs: Donor-Acceptor Structure and Non-Donor-Acceptor Structure (Adv. Mater. 9/2011) (page 1136)

      Lian Duan, Juan Qiao, Yongduo Sun and Yong Qiu

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201190027

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      Small molecules capable of bipolar transport offer the possibility of achieving efficient and stable organic light-emitting diodes (OLEDs). In this Research News, Yong Qiu and co-workers review two design strategies for bipolar materials for OLEDs: with and without donor-acceptor structure. on p. 1137

  13. Research News

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Editorial
    6. Review
    7. Frontispiece
    8. Review
    9. Frontispiece
    10. Progress Report
    11. Frontispiece
    12. Communications
    13. Frontispiece
    14. Research News
    1. Strategies to Design Bipolar Small Molecules for OLEDs: Donor-Acceptor Structure and Non-Donor-Acceptor Structure (pages 1137–1144)

      Lian Duan, Juan Qiao, Yongduo Sun and Yong Qiu

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201003816

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      Small molecules with bipolar transporting characters are extremely attractive as they offer the possibility to achieve efficient and stable organic light-emitting diodes (OLEDs). In this article we review the two design strategies for bipolar materials for OLEDs: with or without donor-acceptor structure. The correlation between the experimental results and theoretical calculations of some of the materials is also discussed.

    2. Evaluation of Charge Mobility in Organic Materials: From Localized to Delocalized Descriptions at a First-Principles Level (pages 1145–1153)

      Zhigang Shuai, Linjun Wang and Qikai Li

      Version of Record online: 22 DEC 2010 | DOI: 10.1002/adma.201003503

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      The charge mobility of carbon electronic materials is very important for optoelectronics. Depending on the strength of electron–phonon couplings, we consider three major transport regimes: the hopping mechanism, in which the molecular internal vibration severely induces charge self-trapping (upper image); the Holstein-Peierls polaron model, in which intermolecular and intramolecular scattering come into play; and, a deformation potential treatment, in which the charge is well delocalized with coherence length comparable to the acoustic phonon wavelength (lower image).

    3. Superaligned Carbon Nanotube Arrays, Films, and Yarns: A Road to Applications (pages 1154–1161)

      Kaili Jiang, Jiaping Wang, Qunqing Li, Liang Liu, Changhong Liu and Shoushan Fan

      Version of Record online: 31 JAN 2011 | DOI: 10.1002/adma.201003989

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      A superaligned carnon nanotube (CNT) array is a special kind of vertically aligned array from which continuous CNT films and yarns can be directly drawn out in a dry state. This approach enables the large-scale fabrication of CNT devices in a simple process and leads directly to real CNT products, such as TEM grids, loudspeakers, touch screens, etc.

    4. Molecular Beam Epitaxial Growth of Topological Insulators (pages 1162–1165)

      Xi Chen, Xu-Cun Ma, Ke He, Jin-Feng Jia and Qi-Kun Xue

      Version of Record online: 1 MAR 2011 | DOI: 10.1002/adma.201003855

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      With the molecular beam epitaxy tech­nique, layer-by-layer growth of atomically flat topological insulator Bi2Te3 and Bi2Se3 thin films has been realized on Si(111) and graphene substrates, respectively. The growth criteria by which intrinsic topological insulators can readily be obtained is established. By using in situ angle-resolved photoemission spectroscopy and scanning tunneling microscopy measurements, the band structure and surface morphology of Bi2Te3 and Bi2Se3 thin films of different thickness can be studied.

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