Advanced Materials

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Recently Published Articles

  1. Deposition of Wafer-Scale Single-Component and Binary Nanocrystal Superlattice Thin Films Via Dip-Coating

    E. Ashley Gaulding, Benjamin T. Diroll, E. D. Goodwin, Zachary J. Vrtis, Cherie R. Kagan and Christopher B. Murray

    Article first published online: 27 MAR 2015 | DOI: 10.1002/adma.201405575

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    Single-component and binary nanocrystal superlattices are assembled over wafer-scale areas using the dip-coating method. A series of measurements are performed to confirm superlattice assembly. This study demonstrates the versatility of dip-coating in depositing a diverse set of nanocrystal materials and superlattice structures, while combining large-area deposition with nanoscale control.

  2. Heterovalent-Doping-Enabled Efficient Dopant Luminescence and Controllable Electronic Impurity Via a New Strategy of Preparing II−VI Nanocrystals

    Jian Liu, Qian Zhao, Jia-Long Liu, Yi-Shi Wu, Yan Cheng, Mu-Wei Ji, Hong-Mei Qian, Wei-Chang Hao, Lin-Juan Zhang, Xiang-Jun Wei, Shou-Guo Wang, Jia-Tao Zhang, Yi Du, Shi-Xue Dou and He-Sun Zhu

    Article first published online: 27 MAR 2015 | DOI: 10.1002/adma.201500247

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    Substitutional heterovalent doping represents an effective method to control the optical and electronic properties of nanocrystals (NCs). Here, highly monodisperse II−VI NCs with deep substitutional dopants are presented. The NCs exhibit stable, dominant, and strong dopant fluorescence, and control over n- and p-type electronic impurities has been achieved. Large-scale, bottom-up superlattices of the NCs will speed up their application in electronic devices.

  3. Remarkable and Crystal-Structure-Dependent Piezoelectric and Piezoresistive Effects of InAs Nanowires

    Xing Li, Xianlong Wei, Tingting Xu, Dong Pan, Jianhua Zhao and Qing Chen

    Article first published online: 27 MAR 2015 | DOI: 10.1002/adma.201500037

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    The piezoelectric and piezoresistive effects of InAs nanowires are experimentally demonstrated for the first time and are observed to strongly depend on the NW crystal structure. While single-crystalline 〈0001〉 oriented wurtzite nano­wires exhibit remarkable piezoelectric and piezoresistive effects, they are negligible in single-crystalline wurtzite inline image, zinc blende 〈011〉, 〈103〉, inline image oriented nanowires, and significantly suppressed by the presence of stacking faults.

  4. A Rigid Naphthalenediimide Triangle for Organic Rechargeable Lithium-Ion Batteries

    Dongyang Chen, Alyssa-Jennifer Avestro, Zonghai Chen, Junling Sun, Shuanjin Wang, Min Xiao, Zach Erno, Mohammed M. Algaradah, Majed S. Nassar, Khalil Amine, Yuezhong Meng and J. Fraser Stoddart

    Article first published online: 27 MAR 2015 | DOI: 10.1002/adma.201405416

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    Molecular triangles containing naphthalenediimide redox-active units have been employed as promising active materials for organic lithium-ion batteries. In addition to exceptional low-rate performance, a capacity of 71.1 mAh g−1 is maintained at 10 C after 300 cycles. The performance of these organic compounds exists in contrast to a control naphthalenediimide monomer, which lacks the same shape-persistent structure.

  5. Low-Cost Facile Fabrication of Flexible Transparent Copper Electrodes by Nanosecond Laser Ablation

    Dongwoo Paeng, Jae-Hyuck Yoo, Junyeob Yeo, Daeho Lee, Eunpa Kim, Seung Hwan Ko and Costas P. Grigoropoulos

    Article first published online: 27 MAR 2015 | DOI: 10.1002/adma.201500098

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    Low-cost Cu flexible transparent conducting electrodes(FTCEs) are fabricated by facile nanosecond laser ablation. Fabricated Cu FTCEs show excellent opto-electrical properties (Transmittance: 83%, Sheet resistance: 17.48 Ω sq−1) with outstanding mechanical durability. Successful demonstration of a touch screen panel confirms the potential applicability of Cu FTCEs to the flexible optoelectronic devices.