Advanced Materials

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    Special Issue: Materials Research at ICCAS (Adv. Mater. 40/2014) (page 6801)

    Article first published online: 22 OCT 2014 | DOI: 10.1002/adma.201470271

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    This special issue of Advanced Materials highlights recent research achievements in materials science at the Institute of Chemistry, Chinese Academy of Sciences (ICCAS).

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    Field-Effect Transistors: Heteroatom Substituted Organic/Polymeric Semiconductors and their Applications in Field-Effect Transistors (Adv. Mater. 40/2014) (page 6802)

    Weifeng Zhang, Yunqi Liu and Gui Yu

    Article first published online: 22 OCT 2014 | DOI: 10.1002/adma.201470272

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    The introduction of heteroatoms such as chalcogen, nitrogen, and halogen atoms to aromatic π-conjugated backbones is used to develop organic/polymeric semiconductors and to improve electronic properties of their field-effect transistors. The heteroatoms have a significant effect on the molecular geometry, the highest occupied and lowest unoccupied molecular orbitals (HOMO and LUMO) energy levels, and the intermolecular interactions, for example. Such systems are described by G. Yu and co-workers on page 6898.

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    Thermoelectric Materials: Organic Thermoelectric Materials: Emerging Green Energy Materials Converting Heat to Electricity Directly and Efficiently (Adv. Mater. 40/2014) (page 6828)

    Qian Zhang, Yimeng Sun, Wei Xu and Daoben Zhu

    Article first published online: 22 OCT 2014 | DOI: 10.1002/adma.201470275

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    Organic conducting materials display great potential to be efficient thermoelectric materials according to the latest reports. On page 6829, W. Xu, D. B. Zhu and co-workers review thermoelectric and related properties of organic conducting materials, including polymers and small molecules, and highlight the most recent progress in materials, measurements, and devices. Prospects for future research are discussed in pursuit of green energy converted by organic thermoelectric materials.

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    Interfaces: Interfacial Material System Exhibiting Superwettability (Adv. Mater. 40/2014) (page 6871)

    Ye Tian, Bin Su and Lei Jiang

    Article first published online: 22 OCT 2014 | DOI: 10.1002/adma.201470276

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    A number of superwetting states are summarized by L. Jiang and co-workers on page 6872 to build a “superwettability” system. The combination of two or more members of the superwettability system leads to unexpected yet fantastic applications, such as in environmental protection, energy, green industry, and many other important domains.

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    Nanoparticles: Visualization and Quantification of Neurochemicals with Gold Nanoparticles: Opportunities and Challenges (Adv. Mater. 40/2014) (page 6984)

    Jingjing Deng, Ping Yu, Yuexiang Wang, Lifen Yang and Lanqun Mao

    Article first published online: 22 OCT 2014 | DOI: 10.1002/adma.201470279

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    By taking full advantage of both the designable and thus tunable surface chemistry and the high extinction coefficient of gold nanoparticles, neurochemical changes during brain functions can be quantified and visualized simply through the development of new analytical principles and methods. This offers a straightforward route to a better understanding of the molecular basis underlying brain activities and is discussed in detail by L. Q. Mao and co-workers on page 6933.

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