Advanced Materials

Cover image for Advanced Materials

February 2, 2009

Volume 21, Issue 5

Pages 499–610

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Review Article
    6. Communications
    7. Index
    1. Electronic Textiles: Fiber-Embedded Electrolyte-Gated Field-Effect Transistors for e-Textiles (Adv. Mater. 5/2009)

      Mahiar Hamedi, Lars Herlogsson, Xavier Crispin, Rebeca Marcilla, Magnus Berggren and Olle Inganäs

      Article first published online: 22 JAN 2009 | DOI: 10.1002/adma.200990013

      Thumbnail image of graphical abstract

      The cover shows an artist's interpretation of a textile where parts of the fibers in the weave are electronically active as represented by the orange fibers, and these fibers are in turn controlled by fiber embedded transistors represented by the red spheres at the junctions. The fabrication and incorporation into textiles of these electrolyte-gated transistors is discussed in detail by Mahiar Hamedi and co-workers on p. 573.

  2. Inside Front Cover

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Review Article
    6. Communications
    7. Index
    1. Carbon Nanotube Fibers: Monitoring a Micromechanical Process in Macroscale Carbon Nanotube Films and Fibers (Adv. Mater. 5/2009)

      Wenjun Ma, Luqi Liu, Rong Yang, Taihua Zhang, Zhong Zhang, Li Song, Yan Ren, Jun Shen, Zhiqiang Niu, Weiya Zhou and Sishen Xie

      Article first published online: 22 JAN 2009 | DOI: 10.1002/adma.200990014

      Thumbnail image of graphical abstract

      The evaluation of mechanical properties of carbon nanotube (CNT) fibers is inherently difficult. On p. 603, Sishen Xie and co-workers report that Raman scattering—a generic methodology independent of mechanical measurements—can be used to determine the interbundle strength and microscopic failure process for various CNT macroarchitectures. Raman data are used to predict the moduli of CNT films and fibers, and to illustrate the influences of the twisting geometries on the fibers' mechanical performances.

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Review Article
    6. Communications
    7. Index
    1. Contents: (Adv. Mater. 5/2009) (pages 499–505)

      Article first published online: 22 JAN 2009 | DOI: 10.1002/adma.200990015

  4. Review Article

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Review Article
    6. Communications
    7. Index
    1. Lanthanide-Containing Light-Emitting Organic–Inorganic Hybrids: A Bet on the Future (pages 509–534)

      Luís D. Carlos, Rute A. S. Ferreira, Verónica de Zea Bermudez and Sidney J. L. Ribeiro

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adma.200801635

      Thumbnail image of graphical abstract

      Ln3+-containing siloxane-based hybrids and the latest advances in this field are reviewed. Interest in these materials has grown considerably during the last decade, with the concomitant fabrication of materials with tunable attributes and offering modulated properties. These hybrids present good optical quality and chemical and mechanical properties, and the simple incorporation of active species allows tuning of absorption and emission colors.

  5. Communications

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Review Article
    6. Communications
    7. Index
    1. Multidimensional Generation of Combinatorial Organic Arrays by Selective Wetting Inscription (pages 537–540)

      Yu-Jin Na, Sang-Wook Lee, Wonsuk Choi, Sung-Jin Kim and Sin-Doo Lee

      Article first published online: 24 NOV 2008 | DOI: 10.1002/adma.200801288

      Thumbnail image of graphical abstract

      Based on selective wetting inscription, a highly parallel and error-proof platform is developed to integrate different classes of solution-processed organic elements into 2D and 3D combinatorial arrays with high resolution. By simple solution coating, disparate elements can be precisely self-registered in a pattern-by-pattern or pattern-on-pattern fashion within the framework of the wetting transition as a length scale.

    2. Immunotargeting of Functional Nanoparticles for MRI detection of Apoptotic Tumor Cells (pages 541–545)

      Benjamin Thierry, Fares Al-Ejeh, Michael P. Brown, Peter Majewski and Hans J. Griesser

      Article first published online: 4 NOV 2008 | DOI: 10.1002/adma.200800998

      Thumbnail image of graphical abstract

      Hybrid MRI nanoprobes, immunotargeted to the La ribonucleoprotein, which becomes available for binding in the cytoplasm of post-apoptotic permeable cells, are designed for the improved detection of apoptotic tumor cells. The high level of specificity achieved through the use of an optimal polyethyleneglycol interlayer makes them excellent candidates for the in vivo detection of intratumoral apoptosis.

    3. Surface Selective Deposition of PMMA on Layered Double Hydroxide Nanocrystals Immobilized on Solid Substrates (pages 546–549)

      Jong Hyeon Lee, Seog Woo Rhee, Hye Jin Nam and Duk-Young Jung

      Article first published online: 4 NOV 2008 | DOI: 10.1002/adma.200801096

      Thumbnail image of graphical abstract

      A novel nanostructured hybrid PMMA/MgAl-LDH thin film enables a strong UV-blocking effect, up to 97% below 300 nm, and excellent visible transparency. The graft density of PMMA films can be controlled by adjusting the area coverage of immobilized LDH monolayer with a highly-orientated structure on oxide, metal, and polymer substrates.

    4. End-to-End Assembly of Shape-Controlled Nanocrystals via a Nanowelding Approach Mediated by Gold Domains (pages 550–554)

      Albert Figuerola, Isabella R. Franchini, Angela Fiore, Rosanna Mastria, Andrea Falqui, Giovanni Bertoni, Sara Bals, Gustaaf Van Tendeloo, Stefan Kudera, Roberto Cingolani and Liberato Manna

      Article first published online: 14 NOV 2008 | DOI: 10.1002/adma.200801928

      Thumbnail image of graphical abstract

      Welding nanocrystals for assembly: The welding of Au domains grown on the tips of shape-controlled cadmium chalcogenide colloidal nanocrystals is used as a strategy for their assembly. Iodine-induced coagulation of selectively grown Au domains leads to assemblies such as flowerlike structures based on bullet-shaped nanocrystals, linear and cross-linked chains of nanorods, and globular networks with tetrapods as building blocks.

    5. Nanoimprint Lithography on Silica Sol–Gels: A Simple Route to Sequential Patterning (pages 555–558)

      Christophe Peroz, Vanessa Chauveau, Etienne Barthel and Elin Søndergård

      Article first published online: 14 NOV 2008 | DOI: 10.1002/adma.200702484

      Thumbnail image of graphical abstract

      Inorganic condensing sol-gel films are promising resist materials for nanoimprint lithography. We demonstrate that sequential patterning of these materials can be performed by controlling their condensation state. As a consequence, multilevel inorganic patterns can be obtained by superimposing structures, as show here, where successive stamping of a line pattern leads to two-level square features.

    6. Tailoring the Electrical Properties of Inverse Silicon Opals - A Step Towards Optically Amplified Silicon Solar Cells (pages 559–563)

      Takashi Suezaki, Paul G. O'Brien, Jennifer I. L. Chen, Edward Loso, Nazir P. Kherani and Geoffrey A. Ozin

      Article first published online: 14 NOV 2008 | DOI: 10.1002/adma.200802123

      Thumbnail image of graphical abstract

      Inverse crystalline silicon opals (i-cSi-os) in the solid state and hydrogen-plasma passivated are studied, and charge-transport measurements reveal for the first time that their electrical properties are acceptable for device applications. The omnidirectional photonic band gap of i-cSi-os can be uniquely integrated with the semiconductivity of silicon, enhancing their photon-to-electron conversion efficiency.

    7. Fully Transparent Thin-Film Transistors Based on Aligned Carbon Nanotube Arrays and Indium Tin Oxide Electrodes (pages 564–568)

      Sunkook Kim, Sanghyun Ju, Ju Hee Back, Yi Xuan, Peide D. Ye, Moonsub Shim, David B. Janes and Saeed Mohammadi

      Article first published online: 12 NOV 2008 | DOI: 10.1002/adma.200801032

      Thumbnail image of graphical abstract

      Fully transparent thin-film transistors (TFTs) based on well-aligned single-walled carbon nanotube (SWCNT) arrays with indium tin oxide (ITO) electrodes are achieved. The fully transparent SWCNT-TFTs could be attractive candidates for future flexible or transparent electronics.

    8. Encoded Porous Beads for Label-Free Multiplex Detection of Tumor Markers (pages 569–572)

      Yuanjin Zhao, Xiangwei Zhao, Jing Hu, Ming Xu, Wenju Zhao, Liguo Sun, Cun Zhu, Hua Xu and Zhongze Gu

      Article first published online: 18 NOV 2008 | DOI: 10.1002/adma.200802339

      Thumbnail image of graphical abstract

      Inverse-opaline photonic beads are used as the elements of a suspension array for label-free multiplex immunoassays. As in the case of tumor-marker detection, specific binding of tumor markers on the pore surfaces of the beads results in a shift in the diffraction-peak position, which can be used for quantitatively estimating the amount of bound tumor marker.

    9. Fiber-Embedded Electrolyte-Gated Field-Effect Transistors for e-Textiles (pages 573–577)

      Mahiar Hamedi, Lars Herlogsson, Xavier Crispin, Rebeca Marcilla, Magnus Berggren and Olle Inganäs

      Article first published online: 4 DEC 2008 | DOI: 10.1002/adma.200802681

      Thumbnail image of graphical abstract

      Electrolyte-gate organic field-effect transistors embedded at the junction of textile microfibers are demonstrated. The fiber transistor operates below 1 V, and delivers large current densities. The transience of the organic thin-film transistor's current and the impedance spectroscopy measurements reveal that the channel is formed in two steps.

    10. Time/Space-Resolved Studies of the Nafion Membrane Hydration Profile in a Running Fuel Cell (pages 578–583)

      Valerio Rossi Albertini, Barbara Paci, Francesco Nobili, Roberto Marassi and Marco Di Michiel

      Article first published online: 17 NOV 2008 | DOI: 10.1002/adma.200801652

      Thumbnail image of graphical abstract

      The hydration profile of proton-exchange membranes (PEM) in running fuel cells (FC) are obtained through an original method that employs very-high-energy synchrotron-radiation X-ray diffraction in space/time-resolved measurements. Determining the amount and spatial distribution of water in the polymeric membrane of PEMFCs under working conditions is of utmost importance in PEMFC technology, since FC performances are strongly dependent on PEM hydration.

    11. Solvent Effects on the Architecture and Performance of Polymer White-Light-Emitting Diodes with Conjugated Oligoelectrolyte Electron-Transport Layers (pages 584–588)

      Yunhua Xu, Renqiang Yang, Junbiao Peng, Alexander A. Mikhailovsky, Yong Cao, Thuc-Quyen Nguyen and Guillermo C. Bazan

      Article first published online: 25 NOV 2008 | DOI: 10.1002/adma.200802548

      Thumbnail image of graphical abstract

      Polymer-based white-light-emitting diodes are fabricated using conjugated oligoelec trolytes as effective electron-injection layers. However, the choice of solvent used to deposit the conjugated oligoelectrolyte bears a strong influence on the final composition of the emissive layer. Inclusion of water decreases the contact with hydrophobic underlying coatings, and minimizes the extraction of one of the molecular components required for function.

    12. Superior-Performance Polymeric Composite Materials for High-Density Optical Data Storage (pages 589–592)

      Riccardo Castagna, Francesco Vita, Daniele E. Lucchetta, Luigino Criante and Francesco Simoni

      Article first published online: 14 NOV 2008 | DOI: 10.1002/adma.200801822

      Thumbnail image of graphical abstract

      High-resolution holographic gratings are obtained using a combination of a multifunctional acrylate (DPHP/HA), a low-molecular-weight glass-forming liquid epoxy-aromatic resin (TPMTGE), and a UV-photoinitiator (Irgacure 819). Their optical properties (sensitivity, transparency, and optical shrinkage) are promising for high-density optical data storage applications.

    13. Enhancement of Piezoelectric Response in Scandium Aluminum Nitride Alloy Thin Films Prepared by Dual Reactive Cosputtering (pages 593–596)

      Morito Akiyama, Toshihiro Kamohara, Kazuhiko Kano, Akihiko Teshigahara, Yukihiro Takeuchi and Nobuaki Kawahara

      Article first published online: 2 DEC 2008 | DOI: 10.1002/adma.200802611

      Thumbnail image of graphical abstract

      A high-temperature piezoelectric material exhibits a good balance between high maximum use temperature and large piezoelectricity. This is achieved by the combination of the discovery of a phase transition in scandium aluminum nitride (ScxAl1 − xN) alloy thin films, and the use of dual cosputtering, which leads to nonequilibrium alloy thin films.

    14. Side-Chain Degradation of Ultrapure π-Conjugated Oligomers: Implications for Organic Electronics (pages 597–602)

      Robert Abbel, Martin Wolffs, Ralf A. A. Bovee, Joost L. J. van Dongen, Xianwen Lou, Oliver Henze, W. James Feast, E. W. Meijer and Albertus P. H. J. Schenning

      Article first published online: 24 NOV 2008 | DOI: 10.1002/adma.200802416

      Thumbnail image of graphical abstract

      The degradation of two defect-freeπ-conjugated oligomers, and the participation of their solubilizing side chains in the process are studied in unprecedented detail. The detected intermediate products reveal a mechanism of successive shortening of alkyl and oligo(ethylene glycol) substituents. Eventually, these processes cause chemical modifications in the conjugated backbone, which strongly influence the electronic properties of the materials.

    15. Monitoring a Micromechanical Process in Macroscale Carbon Nanotube Films and Fibers (pages 603–608)

      Wenjun Ma, Luqi Liu, Rong Yang, Taihua Zhang, Zhong Zhang, Li Song, Yan Ren, Jun Shen, Zhiqiang Niu, Weiya Zhou and Sishen Xie

      Article first published online: 12 DEC 2008 | DOI: 10.1002/adma.200801335

      Thumbnail image of graphical abstract

      The evaluation of mechanical properties of carbon nanotube (CNT) fibers is inherently difficult. Here, Raman scattering—a generic methodology independent of mechanical measurements—is used to determine the interbundle strength and microscopic failure process for various CNT macroarchitectures. Raman data are used to predict the moduli of CNT films and fibers, and to illustrate the influences of the twisting geometries on the fibers' mechanical performances.

  6. Index

    1. Top of page
    2. Cover Picture
    3. Inside Front Cover
    4. Contents
    5. Review Article
    6. Communications
    7. Index
    1. Author Index and Subject Index Adv. Mater. 5/2009 (pages 609–610)

      Article first published online: 22 JAN 2009 | DOI: 10.1002/adma.200990016

SEARCH

SEARCH BY CITATION