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Recently Published Articles

  1. Structural Engineering of Nano-Grain Boundaries for Low-Voltage UV-Photodetectors with Gigantic Photo- to Dark-Current Ratios

    Noushin Nasiri, Renheng Bo, Hongjun Chen, Thomas P. White, Lan Fu and Antonio Tricoli

    Version of Record online: 29 JUL 2016 | DOI: 10.1002/adom.201600273

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    The effect of the grain boundary morphology on the optical and photodetection mechanism of ultraporous ZnO nanoparticle networks UV-photodetectors is investigated. Optimal devices feature an ultralow dark current of 22 pA and a high photocurrent of 205 μA at a low light density of 86 μW cm−2 and a bias of 1 V, and a gigantic photo- to dark-current ratio of 9.3 × 106.

  2. High-Performance Light-Emitting Memories: Multifunctional Devices for Unveiling Information by Optical and Electrical Detection

    Yi-Rou Liou, Golam Haider, Shu-Yi Cai, Chia-Lin Wu, Tai-Yuan Lin and Yang-Fang Chen

    Version of Record online: 29 JUL 2016 | DOI: 10.1002/adom.201600298

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    A novel bistable light-emitting memory device is demonstrated not only to read the encoded signal electrically, but to enable signal communication by optical detection; this facilitates the capability for a parallel reading process and raises the transmission rate of the signal dramatically. The ON/OFF ratio can be extremely large, based on optical detection with low applied bias.

  3. Physically Transient Distributed Feedback Laser Using Optically Activated Silk Bio-Ink

    Hyunho Jung, Kyungtaek Min, Heonsu Jeon and Sunghwan Kim

    Version of Record online: 29 JUL 2016 | DOI: 10.1002/adom.201600369

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    Optically activated silk bio-ink is used to realize a physically transient distributed feedback laser. By water-washing and recoating, a fresh single-use laser can be easily obtained. Along with reliable lasing, a chemosensing application to detect a toxic acid vapor is presented.

  4. Bottom-Up Synthesis of MeSx Nanodots for Optoelectronic Device Applications

    Quyet Van Le, Thang Phan Nguyen, Minjoon Park, Woonbae Sohn, Ho Won Jang and Soo Young Kim

    Version of Record online: 29 JUL 2016 | DOI: 10.1002/adom.201600333

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    WSx and MoSx nanodots are synthesized from (NH4)2WS4 and (NH4)2MoS4 precursors using a solvothermal method, and applied to organic photovoltaic cells (OPVs) and organic light emitting diodes (OLEDs) as hole injection layers (HILs). The stabilities of the OPV and OLEDs in air can be prolonged by using ultraviolet/ozone-treated WSx or MoSx nanodots as HILs.

  5. Efficient Radiative Pumping of Polaritons in a Strongly Coupled Microcavity by a Fluorescent Molecular Dye

    Richard T. Grant, Paolo Michetti, Andrew J. Musser, Pascal Gregoire, Tersilla Virgili, Eleonora Vella, Marco Cavazzini, Kyriacos Georgiou, Francesco Galeotti, Caspar Clark, Jenny Clark, Carlos Silva and David G. Lidzey

    Version of Record online: 29 JUL 2016 | DOI: 10.1002/adom.201600337

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    The energetic distribution of polariton states is explored in a series of strongly coupled microcavities containing the fluorescent molecular dye BODIPY-Br. It is shown that distribution of polariton states along the lower polariton branch is dependent on the distribution of states within the weakly coupled reservoir, and is primarily populated by direct radiative pumping from excimer-like states.