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  1. High-Performance Nonfullerene Polymer Solar Cells based on Imide-Functionalized Wide-Bandgap Polymers

    Baobing Fan, Kai Zhang, Xiao-Fang Jiang, Lei Ying, Fei Huang and Yong Cao

    Version of Record online: 23 MAR 2017 | DOI: 10.1002/adma.201606396

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    High-performance nonfullerene polymer solar cells with power conversion efficiencies of around 10% are achieved by integrating the wide-bandgap polymers PTzBI or PTzBI-DT with a nonfullerene acceptor ITIC. The extension of conjugation can affect the optical and electronic properties, molecular aggregation properties, and charge separation in the bulk-heterojunction films, and thus the overall photovoltaic performances.

  2. Ramp-Reversal Memory and Phase-Boundary Scarring in Transition Metal Oxides

    Naor Vardi, Elihu Anouchi, Tony Yamin, Srimanta Middey, Michael Kareev, Jak Chakhalian, Yonatan Dubi and Amos Sharoni

    Version of Record online: 23 MAR 2017 | DOI: 10.1002/adma.201605029

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    Reversing the temperature ramp during the metal–insulator transition in both VO2 and NdNiO3 films is found to induce a nonvolatile increase in resistance at the reversal temperature, which is erased upon heating above it. The effect originates from phase boundaries at the reversal-temperature leaving “scars” in the underlying lattice structure, increasing the local transition temperature.

  3. A Tunable 3D Nanostructured Conductive Gel Framework Electrode for High-Performance Lithium Ion Batteries

    Ye Shi, Jun Zhang, Andrea M. Bruck, Yiman Zhang, Jing Li, Eric A. Stach, Kenneth J. Takeuchi, Amy C. Marschilok, Esther S. Takeuchi and Guihua Yu

    Version of Record online: 22 MAR 2017 | DOI: 10.1002/adma.201603922

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    A tunable 3D nanostructured gel framework with continuous electron pathways can provide hierarchical pores for ion transport and form uniform coatings on each active particle against aggregation. The hybrid gel electrodes based on a polypyrrole gel framework and Fe3O4 nanoparticles demonstrate one of the best rate performance and the highest achieved specific capacities when considering total electrode mass.

  4. Yolk–Shell Nanostructure: An Ideal Architecture to Achieve Harmonious Integration of Magnetic–Plasmonic Hybrid Theranostic Platform

    Li-Sen Lin, Xiangyu Yang, Zijian Zhou, Zhen Yang, Orit Jacobson, Yijing Liu, Angela Yang, Gang Niu, Jibin Song, Huang-Hao Yang and Xiaoyuan Chen

    Version of Record online: 22 MAR 2017 | DOI: 10.1002/adma.201606681

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    Yolk–shell structured Fe3O4@Au nanoparticles are designed to circumvent the decline in relaxivity of magnetic component caused by the introduction of water-impenetrable plasmonic components, which is unavoidable in traditional core–shell structured nanostructures. This feature, in conjunction with their compact size, near-infrared absorption, and drug delivery capability, makes them harmoniously integrated magnetic–plasmonic theranostic nanoplatforms for multimodal imaging and light-triggered chemothermal synergistic therapy.

  5. Silicene: A Promising Anode for Lithium-Ion Batteries

    Jincheng Zhuang, Xun Xu, Germanas Peleckis, Weichang Hao, Shi Xue Dou and Yi Du

    Version of Record online: 22 MAR 2017 | DOI: 10.1002/adma.201606716

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    Silicene, single-layer-thick silicon nanosheets with a honeycomb structure, has been successfully fabricated very recently. Recent progress on the features of silicene that make it a promising anode for lithium-ion batteries (LIBs), including its charge-carrier mobility, chemical stability, and metal–silicene interaction are discussed.