Advanced Materials

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Recently Published Articles

  1. Chemical Vapor Deposition of Monolayer Rhenium Disulfide (ReS2)

    Kunttal Keyshar, Yongji Gong, Gonglan Ye, Gustavo Brunetto, Wu Zhou, Daniel P. Cole, Ken Hackenberg, Yongmin He, Leonardo Machado, Mohamad Kabbani, Amelia H. C. Hart, Bo Li, Douglas S. Galvao, Antony George, Robert Vajtai, Chandra Sekhar Tiwary and Pulickel M. Ajayan

    Article first published online: 3 JUL 2015 | DOI: 10.1002/adma.201501795

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    Here the direct synthesis of monolayer and multilayer ReS2 by chemical vapor deposition at a low temperature of 450 °C is reported. Detailed characterization of this material is performed using various spectroscopy and microscopy methods. Furthermore initial field effect transistor characteristics are evaluated which highlight the potential in being used as an n-type semiconductor.

  2. Rapid and Nondestructive Identification of Polytypism and Stacking Sequences in Few-Layer Molybdenum Diselenide by Raman Spectroscopy

    Xin Lu, M. Iqbal Bakti Utama, Junhao Lin, Xin Luo, Yanyuan Zhao, Jun Zhang, Sokrates T. Pantelides, Wu Zhou, Su Ying Quek and Qihua Xiong

    Article first published online: 2 JUL 2015 | DOI: 10.1002/adma.201501086

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    Various combinations of interlayer shear modes emerge in few-layer molybdenum diselenide grown by chemical vapor deposition depending on the stacking configuration of the sample. Raman measurements may also reveal polytypism and stacking fault, as supported by first principles calculations and high-resolution transmission electron microscopy. Thus, Raman spectroscopy is an important tool in probing stacking-dependent properties in few-layer 2D materials.

  3. Macroscopic 3D Porous Graphitic Carbon Nitride Monolith for Enhanced Photocatalytic Hydrogen Evolution

    Qinghua Liang, Zhi Li, Xiaoliang Yu, Zheng-Hong Huang, Feiyu Kang and Quan-Hong Yang

    Article first published online: 2 JUL 2015 | DOI: 10.1002/adma.201502057

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    A macroscopic 3D porous graphitic carbon nitride (g-CN) monolith is prepared by the one-step thermal polymerization of urea inside the framework of a commercial melamine sponge and exhibits improved photocatalytic water splitting performance for hydrogen evolution compared to g-CN powder due to 3D porous interconnected network, larger specific surface area, better visible light capture, and superior charge separation efficiency.

  4. 7.7% Efficient All-Polymer Solar Cells

    Ye-Jin Hwang, Brett A. E. Courtright, Amy S. Ferreira, Sarah H. Tolbert and Samson A. Jenekhe

    Article first published online: 2 JUL 2015 | DOI: 10.1002/adma.201501604

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    By controlling polymer/polymer blend self-organization rate, all-polymer solar cells composed of high-mobility, crystalline, naphthalene diimide-selenophene copolymer acceptor and benzodithiophene-thieno[3,4-b]thiophene copolymer donor are achieved with a record 7.7% power conversion efficiency and ­record short-circuit current density (18.8 mA cm−2).

  5. Large-Scale Nanophotonic Solar Selective Absorbers for High-Efficiency Solar Thermal Energy Conversion

    Pengfei Li, Baoan Liu, Yizhou Ni, Kaiyang Kevin Liew, Jeff Sze, Shuo Chen and Sheng Shen

    Article first published online: 2 JUL 2015 | DOI: 10.1002/adma.201501686

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    An omnidirectional nanophotonic solar selective absorber is fabricated on a large scale using a template stripping method. The nanopyramid nickel structure achieves an average absorptance of 95% at a wavelength range below 1.3 μm and a low emittance less than 10% at wavelength >2.5 μm.