Advanced Materials

Cover image for Vol. 25 Issue 24

Editor-in-Chief: Peter Gregory, Deputy Editors: Martin Ottmar, Carolina Novo da Silva, Lorna Stimson

Online ISSN: 1521-4095

Associated Title(s): Advanced Energy Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Small

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Recently Published Articles

  1. Tunable Electronic Transport Properties of Metal-Cluster-Decorated III–V Nanowire Transistors

    Ning Han, Fengyun Wang, Jared J. Hou, Sen Po Yip, Hao Lin, Fei Xiu, Ming Fang, Zaixing Yang, Xiaoling Shi, Guofa Dong, Tak Fu Hung and Johnny C. Ho

    Article first published online: 20 JUN 2013 | DOI: 10.1002/adma.201301362

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    A metal-cluster-decoration approach is utilized to tailor electronic transport properties (e.g., threshold voltage) of III–V NWFETs through the modulation of free carriers in the NW channel via the deposition of different metal clusters with different work function. The versatility of this technique has been demonstrated through the fabrication of high-mobility enhancement-mode InAs NW parallel FETs as well as the construction of low-power InAs NW inverters.

  2. Critical Thickness of SiO2 Coating Layer on Core@Shell Bulk@Nanowire Si Anode Materials for Li-Ion Batteries

    Soojin Sim, Pilgun Oh, Soojin Park and Jaephil Cho

    Article first published online: 20 JUN 2013 | DOI: 10.1002/adma.201301454

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    Amorphous SiO2 coating layers with thicknesses of ca. 2, 7, 10, and 15 nm are introduced into bulk@nanowire core@shell Si particles via direct thermal oxidation at 650–850 °C. Of the coated samples, Si with a coating thickness of ca. 7 nm has the best electrochemical performance. This sample shows an initial discharge capacity of 2279 mA h g−1 with a Coulombic efficiency of 92% and displays 83% capacity retention after 50 cycles at 0.2C rate.

  3. Vacuum-Dried Robust Bridged Silsesquioxane Aerogels

    Zhen Wang, Zhen Dai, Junjie Wu, Ning Zhao and Jian Xu

    Article first published online: 20 JUN 2013 | DOI: 10.1002/adma.201301617

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    Robust aerogels derived from a thiol-ene clicked bridged silsesquioxane precursor are obtained by a facile vacuum-drying method. With rather low densities, the flexible aerogels are still robust enough to bear at least 20 times repeating compressions and further functionalization by wet doping. The durability and facile preparation procedure promise the aerogels wider practical applications.

  4. Direct Measurement of Ion Mobility in a Conducting Polymer

    Eleni Stavrinidou, Pierre Leleux, Harizo Rajaona, Dion Khodagholy, Jonathan Rivnay, Manfred Lindau, Sébastien Sanaur and George G. Malliaras

    Article first published online: 20 JUN 2013 | DOI: 10.1002/adma.201301240

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    Using planar junctions between the conducting polymer PEDOT:PSS and various electrolytes, it is possible to inject common ions and directly observe their transit through the film. The 1D geometry of the experiment allows a straightforward estimate of the ion drift mobilities.

  5. Novel Polymer Nanowire Crystals of Diketopyrrolopyrrole-Based Copolymer with Excellent Charge Transport Properties

    Ji Ho Kim, Dae Hee Lee, Da Seul Yang, Dong Uk Heo, Kyung Hwan Kim, Jicheol Shin, Hyun-Ji Kim, Kyung-Youl Baek, Kwangyeol Lee, Hionsuck Baik, Min Ju Cho and Dong Hoon Choi

    Article first published online: 19 JUN 2013 | DOI: 10.1002/adma.201301536

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    The first demonstration of polymer nanowire (PNW) crystals based on a diketopyrrolopyrrole-based copolymer (i.e., PDTTDPP), and their application to field-effect transistors (FETs) is reported. Remarkably, transmission electron microscopy and selected area electron diffraction analyses of the PNW reveal its single-crystalline (SC) nature. FETs fabricated of a SC PNW exhibit a maximal charge carrier mobility of ≈7.00 cm2 V−1 s−1, which is almost one order of magnitude higher than that of the thin-film transistors made of the same polymer (PDTTDPP).

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