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  1. High Efficiency Nonfullerene Polymer Solar Cells with Thick Active Layer and Large Area

    Bing Guo, Wanbin Li, Xia Guo, Xiangyi Meng, Wei Ma, Maojie Zhang and Yongfang Li

    Version of Record online: 24 JUL 2017 | DOI: 10.1002/adma.201702291

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    The nonfullerene polymer solar cells based on a wide bandgap polymer PTZ1 and a narrow bandgap acceptor IDIC exhibit weak active layer thickness and area dependence with the optimal power conversion efficiency of 11.5%, indicating that the blend of PTZ1/IDIC is potential for the practical application of polymer solar cells.

  2. Isoindigo-Based Polymers with Small Effective Masses for High-Mobility Ambipolar Field-Effect Transistors

    Jie Yang, Zhiyuan Zhao, Hua Geng, Changli Cheng, Jinyang Chen, Yunlong Sun, Longxian Shi, Yuanping Yi, Zhigang Shuai, Yunlong Guo, Shuai Wang and Yunqi Liu

    Version of Record online: 24 JUL 2017 | DOI: 10.1002/adma.201702115

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    Three isoindigo-based polymers, PIID-2FBT, P1FIID-2FBT, and P2FIID-2FBT are developed for high-performance ambipolar organic field-effect transistor. After the incorporation of fluorine atoms, the polymers show that an obvious mobility changes from p-channel dominant to n-channel dominant transport characteristics. Especially, P1FIID-2FBT exhibits a highly balanced electron/hole mobility, resulting from the fine-tuned energy levels, high crystallinity, and relatively small effective mass.

  3. Nitrogen-Superdoped 3D Graphene Networks for High-Performance Supercapacitors

    Weili Zhang, Chuan Xu, Chaoqun Ma, Guoxian Li, Yuzuo Wang, Kaiyu Zhang, Feng Li, Chang Liu, Hui-Ming Cheng, Youwei Du, Nujiang Tang and Wencai Ren

    Version of Record online: 24 JUL 2017 | DOI: 10.1002/adma.201701677

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    An N-superdoped 3D graphene network structure is synthesized to achieve highly conductive interconnected 3D porous structure and high N-doping level simultaneously. The supercapacitors based on this material show a remarkably high capacity, good rate capability, and excellent cycling stability.

  4. Extremely Low Density and Super-Compressible Graphene Cellular Materials

    Ling Qiu, Bing Huang, Zijun He, Yuanyuan Wang, Zhiming Tian, Jefferson Zhe Liu, Kun Wang, Jingchao Song, Thomas R. Gengenbach and Dan Li

    Version of Record online: 21 JUL 2017 | DOI: 10.1002/adma.201701553

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    Graphene cellular elastomers with a density as low as 0.16 mg cm−3 , super-compressability, ultrahigh solvent adsorption capacity, ultrahigh pressure sensitivity, and light transmittance can be fabricated by engineering the intersheet interactions of hierarchically structured graphene cellular materials.

  5. Scaffold-Free Liver-On-A-Chip with Multiscale Organotypic Cultures

    Yu-Shih Weng, Shau-Feng Chang, Ming-Cheng Shih, Shih-Heng Tseng and Chih-Huang Lai

    Version of Record online: 21 JUL 2017 | DOI: 10.1002/adma.201701545

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    The concept of lattice growth is applied to develop a scaffold-free tissue incubator which provides physiological cues and controls the 3D assembly of primary cells. The feasibility of recapitulating a multiscale physiological structural hierarchy, complex drug clearance, and zonal physiology from the cell to tissue level in long-term cultured liver-on-a-chip is also demonstrated. These methods are promising for future applications in pharmacodynamics and personal medicine.