Advanced Materials

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  1. Phenylalkylamine Passivation of Organolead Halide Perovskites Enabling High-Efficiency and Air-Stable Photovoltaic Cells

    Feng Wang, Wei Geng, Yang Zhou, Hong-Hua Fang, Chuan-Jia Tong, Maria Antonietta Loi, Li-Min Liu and Ni Zhao

    Version of Record online: 28 SEP 2016 | DOI: 10.1002/adma.201603062

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    Benzylamine is introduced as a surface passivation molecule that improves the moisture-resistance of the perovskites while simultaneously enhancing their electronic properties. Solar cells based on benzylamine-modified formamidinium lead iodide perovskite films exhibit a champion efficiency of 19.2% and an open-circuit voltage of 1.12 V. The modified FAPbI3 films exhibit no degradation after >2800 h air exposure.

  2. Energy Harvesters for Wearable and Stretchable Electronics: From Flexibility to Stretchability

    Hao Wu, YongAn Huang, Feng Xu, Yongqing Duan and Zhouping Yin

    Version of Record online: 28 SEP 2016 | DOI: 10.1002/adma.201602251

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    The development of highly flexible and stretchable energy harvesters based on piezoelectricity, triboelectricity, thermoelectricity, and dielectric elastomers is reviewed, with a focus on strategies for materials synthesis and device fabrication, and integration schemes for enhanced flexibility and stretchability. The challenges and opportunities of assembly and integration of energy harvesters into stretchable systems are also discussed.

  3. In Situ Observation of Single-Molecule Surface Reactions from Low to High Affinities

    Eugene Kim, Martin D. Baaske and Frank Vollmer

    Version of Record online: 28 SEP 2016 | DOI: 10.1002/adma.201603153

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    In situ observation of single-molecule surface reactions from low to high affinities is achieved by resonant coupling between optical whispering-gallery modes and the localized surface plasmon of nanorods. Transient and permanent interactions between ligands (thiol, amine) and the gold surface are monitored without labels, allowing direct determination of the associated kinetic constants and rapid development of new functionalization protocols.

  4. DNA-Nanostructure–Gold-Nanorod Hybrids for Enhanced In Vivo Optoacoustic Imaging and Photothermal Therapy

    Yang Du, Qiao Jiang, Nicolas Beziere, Linlin Song, Qian Zhang, Dong Peng, Chongwei Chi, Xin Yang, Hongbo Guo, Gaël Diot, Vasilis Ntziachristos, Baoquan Ding and Jie Tian

    Version of Record online: 28 SEP 2016 | DOI: 10.1002/adma.201601710

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    A functional cancer theranostic nanoplatform is developed, specifically tailored toward the optoacoustic modality by combining gold nanorods with DNA nanostructures (D–AuNR). DNA origami is used as an efficient delivery vehicle owing to its prominent tumor-targeting property. The D–AuNR hybrids display an enhanced tumor diagnostic sensitivity by improved optoacoustic imaging and excellent photothermal therapeutic properties in vivo.

  5. Graphene Glass from Direct CVD Routes: Production and Applications

    Jingyu Sun, Yubin Chen, Manish Kr. Priydarshi, Teng Gao, Xiuju Song, Yanfeng Zhang and Zhongfan Liu

    Version of Record online: 28 SEP 2016 | DOI: 10.1002/adma.201602247

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    Graphene glass has long been expected to stimulate broad applications. The direct chemical vapor deposition (CVD) growth of graphene on various types of glasses has emerged as a promising route to produce graphene glasses with advantages such as tunable quality, good uniformity, and potential scalability. Recent advances in the production of graphene glass via direct CVD methods are presented, and key applications of such direct-CVD-derived graphene glasses are highlighted.

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