Advanced Materials

Cover image for Vol. 25 Issue 23

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. Wet Chemical Etching of Semipolar GaN Planes to Obtain Brighter and Cost-Competitive Light Emitters

    Sungmin Jung, Ki-Ryong Song, Sung-Nam Lee and Hyunsoo Kim

    Article first published online: 17 JUN 2013 | DOI: 10.1002/adma.201301640

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    Spotlight on etching: (11-22) semipolar GaN plane light-emitting diodes (LEDs) are demonstrated using a wet-etching process. A trigonal prism cell structure with a (0001) c plane and nnn{10-10} m planes is formed after KOH wet etching, and leads to a better ohmic contact and enhanced light extraction. LEDs fabricated by wet etching show excellent output performance 1.89 times higher than that of the reference LEDs.

  2. Room-Temperature Tunneling Behavior of Boron Nitride Nanotubes Functionalized with Gold Quantum Dots

    Chee Huei Lee, Shengyong Qin, Madhusudan A. Savaikar, Jiesheng Wang, Boyi Hao, Dongyan Zhang, Douglas Banyai, John A. Jaszczak, Kendal W. Clark, Juan-Carlos Idrobo, An-Ping Li and Yoke Khin Yap

    Article first published online: 17 JUN 2013 | DOI: 10.1002/adma.201301339

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    One-dimensional arrays of gold quantum dots (QDs) on insulating boron nitride nanotubes (BNNTs) can form conduction channels of tunneling field-effect transistors. We demonstrate that tunneling currents can be modulated at room temperature by tuning the lengths of QD-BNNTs and the gate potentials. Our discovery will inspire the creative use of nanostructured metals and insulators for future electronic devices.

  3. CH3NH3PbI3 Perovskite/Fullerene Planar-Heterojunction Hybrid Solar Cells

    Jun-Yuan Jeng, Yi-Fang Chiang, Mu-Huan Lee, Shin-Rung Peng, Tzung-Fang Guo, Peter Chen and Ten-Chin Wen

    Article first published online: 17 JUN 2013 | DOI: 10.1002/adma.201301327

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    All-solid-state donor/acceptor planar-heterojunction (PHJ) hybrid solar cells are constructed and their excellent performance measured. The deposition of a thin C60 fullerene or fullerene-derivative (acceptor) layer in vacuum on a CH3NH3PbI3 perovskite (donor) layer creates a hybrid PHJ that displays the photovoltaic effect. Such heterojunctions are shown to be suitable for the development of newly structured, hybrid, efficient solar cells.

  4. Organogel-based Thin Films for Self-Cleaning on Various Surfaces

    Hongliang Liu, Pengchao Zhang, Mingjie Liu, Shutao Wang and Lei Jiang

    Article first published online: 17 JUN 2013 | DOI: 10.1002/adma.201301289

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    Self-cleaning on various surfaces is obtained using the facile approach of modifying the surface with a thin organogel film. The film not only absorbs oil but also holds it in a crosslinked network, which endows the material with an excellent self-cleaning ability. This facile method can be applied to various common engineering metals.

  5. 3D Printing of Interdigitated Li-Ion Microbattery Architectures

    Ke Sun, Teng-Sing Wei, Bok Yeop Ahn, Jung Yoon Seo, Shen J. Dillon and Jennifer A. Lewis

    Article first published online: 17 JUN 2013 | DOI: 10.1002/adma.201301036

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    3D interdigitated microbattery architectures (3D-IMA) are fabricated by printing concentrated lithium oxide-based inks. The microbatteries are composed of interdigitated, high-aspect ratio cathode and anode structures. Our 3D-IMA, which exhibit high areal energy and power densities, may find potential application in autonomously powered microdevices.

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