Advanced Energy Materials

Cover image for Vol. 5 Issue 2

Early View (Online Version of Record published before inclusion in an issue)

Editor-in-Chief: Joern Ritterbusch, Deputy Editors: Carolina Novo, Guangchen Xu

Impact Factor: 14.385

ISI Journal Citation Reports © Ranking: 2013: 3/83 (Energy & Fuels); 4/136 (Physics Applied); 5/136 (Chemistry Physical); 5/67 (Physics Condensed Matter); 7/251 (Materials Science Multidisciplinary)

Online ISSN: 1614-6840

Associated Title(s): Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials, Advanced Materials Interfaces, Advanced Optical Materials, Energy Technology, Fuel Cells, Particle & Particle Systems Characterization, Small


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  1. Communications

    1. A Three-Component Nanocomposite with Synergistic Reactivity for Oxygen Reduction Reaction in Alkaline Solution

      Hao Liu, Yao Zheng, Guoxiu Wang and Shi Zhang Qiao

      Article first published online: 29 SEP 2014 | DOI: 10.1002/aenm.201401186

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      A Pd-phosphotungstic acid-mesoporous carbon nanocomposite exhibits superior catalytic activity for oxygen reduction reaction in aqueous alkaline electrolyte. This novel catalyst is promising to replace commercial Pt-C for ORR in alkaline fuel cells. This three-component architecture with synergistic coupling provides a new strategy for making advanced catalysts with excellent electrocatalytic activity.

  2. Full Papers

    1. Efficient, Large Area, and Thick Junction Polymer Solar Cells with Balanced Mobilities and Low Defect Densities

      Ardalan Armin, Mike Hambsch, Pascal Wolfer, Hui Jin, Jun Li, Zugui Shi, Paul L. Burn and Paul Meredith

      Article first published online: 29 SEP 2014 | DOI: 10.1002/aenm.201401221

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      Monolithic large area organic solar cells are fabricated based on bulk hetero­junctions of a high molecular weight polymer and fullerene with balanced charge carrier mobilities. Thick junctions cast from high viscosity solutions can conformally coat low sheet resistance metal-grid anodes to produce efficient large area monolithic devices.

    2. In Situ Morphology Studies of the Mechanism for Solution Additive Effects on the Formation of Bulk Heterojunction Films

      Lee J. Richter, Dean M. DeLongchamp, Felicia A. Bokel, Sebastian Engmann, Kang Wei Chou, Aram Amassian, Eric Schaible and Alexander Hexemer

      Article first published online: 29 SEP 2014 | DOI: 10.1002/aenm.201400975

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      Synchrotron X-ray scattering measurements of nanoscale structure evolution during the drying of polymer-fullerene photovoltaic films are described. Changes in the number and nature of phases, as well as the order within them, reveals the mechanisms by which formulation additives promote structural characteristics leading to higher power conversion efficiencies.

  3. Communications

    1. The Scope and Limitations of Ternary Blend Organic Photovoltaics

      Brett M. Savoie, Scott Dunaisky, Tobin J. Marks and Mark A. Ratner

      Article first published online: 29 SEP 2014 | DOI: 10.1002/aenm.201400891

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      Ternary organic photovoltaic donor:acceptor blend active materials composed of three distinct species possess remarkable advantages over neat semiconductors and binary donor:acceptor blends. A blended semiconductor is a foreign concept for inorganic semiconductors, whereas electronically disparate organic semiconductors can be mixed while mutually enhancing the properties of each. This feature allows ternary semiconductors to realize many of the advantages of tandem solar cells in a single layer.

  4. Full Papers

    1. Multifunctional Luminescent Down-Shifting Fluoropolymer Coatings: A Straightforward Strategy to Improve the UV-Light Harvesting Ability and Long-Term Outdoor Stability of Organic Dye-Sensitized Solar Cells

      Gianmarco Griffini, Federico Bella, Filippo Nisic, Claudia Dragonetti, Dominique Roberto, Marinella Levi, Roberta Bongiovanni and Stefano Turri

      Article first published online: 29 SEP 2014 | DOI: 10.1002/aenm.201401312

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      A new multifunctional coating system based on a photocurable fluoropolymer that incorporates luminescent-down shifting, UV-screening, and easy-cleaning functionalities is presented. The use of such coating in organic dye-sensitized solar cell (DSSC) devices allows for significant improvement of the power conversion efficiency of uncoated devices and imparts outstanding long-term device stability in real outdoor operating conditions.

  5. Communications

    1. High-Efficiency Organic Photovoltaic Cells Based on the Solution-Processable Hole Transporting Interlayer Copper Thiocyanate (CuSCN) as a Replacement for PEDOT:PSS

      Nir Yaacobi-Gross, Neil D. Treat, Pichaya Pattanasattayavong, Hendrik Faber, Ajay K. Perumal, Natalie Stingelin, Donal D. C. Bradley, Paul N. Stavrinou, Martin Heeney and Thomas D. Anthopoulos

      Article first published online: 25 SEP 2014 | DOI: 10.1002/aenm.201401529

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      The use of copper thiocyanate (CuSCN) as a universal solution-processable and highly transparent hole-transporting layer in organic bulk-heterojunction photo­voltaic cells is demonstrated. When CuSCN is employed as a replacement for the commonly used poly(3,4-ethyl­­enedioxythiophene):polystyrenesulfonate (PEDOT:PSS), organic solar cells with maximum power conversion efficiency of 8%, are realized; this value is 1.27 times higher than that for optimized control cells based on PEDOT:PSS.

  6. Full Papers

    1. A High Areal Capacity Flexible Lithium-Ion Battery with a Strain-Compliant Design

      Abhinav M. Gaikwad, Brian V. Khau, Greg Davies, Benjamin Hertzberg, Daniel A. Steingart and Ana Claudia Arias

      Article first published online: 23 SEP 2014 | DOI: 10.1002/aenm.201401389

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      Flexible lithium-ion batteries with a high areal capacity of ≈1 mAh cm-2 and an open-circuit potential of 2.6 V are demonstrated. Due to the reinforced electrode design, the batteries are able to maintain their capacity, even after repeated flexing up to a bend radius of 10 mm.

    2. Integrated Design of Organic Hole Transport Materials for Efficient Solid-State Dye-Sensitized Solar Cells

      Bo Xu, Haining Tian, Lili Lin, Deping Qian, Hong Chen, Jinbao Zhang, Nick Vlachopoulos, Gerrit Boschloo, Yi Luo, Fengling Zhang, Anders Hagfeldt and Licheng Sun

      Article first published online: 22 SEP 2014 | DOI: 10.1002/aenm.201401185

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      A series of triphenylamine-based small molecular hole transport materials (HTMs) are systematically investigated in solid-state dye-sensitized solar cell (ssDSCs). Among these HTMs, X3- and X35-based devices exhibit desirable power conversion efficiencies of 5.8% and 5.5%, which are better than those for the device using the state-of-the-art Spiro-OMeTAD (5.4%). This makes these new HTMs promising for high-efficiency ssDSCs or perovskite solar cells.

    3. Optimization of Carbon- and Binder-Free Au Nanoparticle-Coated Ni Nanowire Electrodes for Lithium-Oxygen Batteries

      Sun Tai Kim, Nam-Soon Choi, Soojin Park and Jaephil Cho

      Article first published online: 22 SEP 2014 | DOI: 10.1002/aenm.201401030

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      Au nanoparticle-coated Ni nanowire substrates are used as the electrode (Au/Ni electrode) for Li-O2 batteries. This optimized Au/Ni electrode demonstrates improved capacity of ≈600 mAh g−1Au. More importantly, it exhibits improved cyclability over 200 cycles at full discharge and charge conditions between 2.3 and 4.3 V.

  7. Communications

    1. Direct Observation of Ordered Oxygen Defects on the Atomic Scale in Li2O2 for Li-O2 Batteries

      Dongdong Xiao, Shanmu Dong, Jing Guan, Lin Gu, Shanming Li, Nijie Zhao, Chaoqun Shang, Zhenzhong Yang, Hao Zheng, Chun Chen, Ruijuan Xiao, Yong-Sheng Hu, Hong Li, Guanglei Cui and Liquan Chen

      Article first published online: 22 SEP 2014 | DOI: 10.1002/aenm.201400664

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      The structure of the discharge product, Li2O2, in lithium-oxygen batteries is revealed directly on the atomic scale. A unique stage ordering that the peroxide vacancy occupies preferentially in every other layer along the c-axis of Li2O2 is observed. This finding provides new insight into the relationship between the structure of Li2O2 and the discharge/charge behavior of Li-O2 batteries.

  8. Full Papers

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      Failure Mechanism for Fast-Charged Lithium Metal Batteries with Liquid Electrolytes

      Dongping Lv, Yuyan Shao, Terence Lozano, Wendy D. Bennett, Gordon L. Graff, Bryant Polzin, Jiguang Zhang, Mark H. Engelhard, Natalio T. Saenz, Wesley A. Henderson, Priyanka Bhattacharya, Jun Liu and Jie Xiao

      Article first published online: 11 SEP 2014 | DOI: 10.1002/aenm.201400993

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      A study of the failure mechanism for lithium metal batteries with liquid electrolytes indicates that at high current densities the tremendous growth of the solid electrolyte interphase (SEI)/Li entangled interphase towards the bulk Li dramatically increases the overall cell impedance. This is the actual origin of cell failure before “dendritic” Li forms. This provides important clues to developing innovative strategies for preventing the formation of the resistive interphase, as well as the determination of testing protocols for evaluation of high mass loading electrodes in Li half-cells.


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