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  1. Sunlight-Reduced Graphene Oxides as Sensitive Moisture Sensors for Smart Device Design

    Dong-Dong Han, Yong-Lai Zhang, Jia-Nan Ma, Yan Liu, Jiang-Wei Mao, Chang-Hao Han, Kai Jiang, Hong-Ran Zhao, Tong Zhang, Huai-Liang Xu and Hong-Bo Sun

    Version of Record online: 22 MAY 2017 | DOI: 10.1002/admt.201700045

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    A facile fabrication of nanostructured graphene layers with high permeability as moisture sensor is reported for smart device design. Focused sunlight irradiation can induce drastic photoreduction of graphene oxides, which helps to recover the conductivity and form a highly porous structure, enabling the facile fabrication of various moisture-discriminable smart devices such as a novel electronic harmonica.

  2. Pulsed Hybrid Reactive Magnetron Sputtering for High zT Cu2Se Thermoelectric Films

    Jaime A. Perez-Taborda, Liliana Vera, Olga Caballero-Calero, Elvis O. Lopez, Juan J. Romero, Daniel G. Stroppa, Fernando Briones and Marisol Martin-Gonzalez

    Version of Record online: 19 MAY 2017 | DOI: 10.1002/admt.201700012

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    A novel technological approach to deposit highly efficient thermoelectric films via the pulsed hybrid reactive magnetron sputtering (PHRMS) is reported. PHRMS is a single-step fabrication process with the ability to get even at room temperature high values of power factor and low values of thermal conductivity for films with the β-Cu2Se phase.

  3. Combining Electrode Flexibility and Wave-Like Device Architecture for Highly Flexible Li-Ion Batteries

    Qinghai Meng, Haiping Wu, Lijuan Mao, Hongxin Yuan, Aziz Ahmad and Zhixiang Wei

    Version of Record online: 19 MAY 2017 | DOI: 10.1002/admt.201700032

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    A flexible wave-like lithium-ion battery is assembled using Cu-deposited conductive nonwoven cloth and carbon nanotube film as current collectors. A wave-like structure is also designed. The use of flexible current collectors and wave-like structures significantly improves the flexibility of the battery. The excellent retention of electrochemical performance during the bending process indicates significant potential for the practical applications of this flexible battery.

  4. 3D-Printed Disposable Wireless Sensors with Integrated Microelectronics for Large Area Environmental Monitoring

    Muhammad Fahad Farooqui, Muhammad Akram Karimi, Khaled Nabil Salama and Atif Shamim

    Version of Record online: 19 MAY 2017 | DOI: 10.1002/admt.201700051

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    A fully integrated 3D-printed wireless sensor node monitors temperature, humidity, and H2S levels; and wirelessly communicates these readings using onboard electronics and antenna. The walls of the sensor package incorporate fully printed sensors making it a functional package instead of a mere cover, thus realizing a 3D-printed system-on-package for real-time wireless monitoring applications.

  5. Growth of Hierarchically 3D Silver–Silica Hybrid Nanostructures by Metastable State Assisted Atomic Layer Deposition (MS-ALD)

    Mario Ziegler, Sezin Yüksel, Sebastian Goerke, Karina Weber, Dana Cialla-May, Jürgen Popp, Kilian Pollok, Dong Wang, Falko Langenhorst, Uwe Hübner, Peter Schaaf and Hans-Georg Meyer

    Version of Record online: 18 MAY 2017 | DOI: 10.1002/admt.201700015

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    A novel technique called “metastable state assisted atomic layer deposition” (MS-ALD) is used to fabricate hierarchically 3D silver–silica hybrid nanostructures. The substrate switches between two phases within the deposition conditions of the MS-ALD process and causes additional side reactions. The morphology of the structures can be adjusted by changing the MS-ALD parameters.