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  1. Hot-Electron-Mediated Photochemical Reactions: Principles, Recent Advances, and Challenges

    Minho Kim, Mouhong Lin, Jiwoong Son, Hongxing Xu and Jwa-Min Nam

    Version of Record online: 24 APR 2017 | DOI: 10.1002/adom.201700004

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    Hot electron-mediated photochemical reactions that transform light into useful chemical energy are of particular interest. This progress report covers the up-to-date knowledge in theory and mechanism of plasmonic hot-electron dynamics and the structural design of high-efficiency photocatalyst. Recent advances and perspectives in hot-electron-induced chemical reactions are also introduced and discussed.

  2. Pancharatnam–Berry Phase Manipulating Metasurface for Visible Color Hologram Based on Low Loss Silver Thin Film

    Sajid Choudhury, Urcan Guler, Amr Shaltout, Vladimir M. Shalaev, Alexander V. Kildishev and Alexandra Boltasseva

    Version of Record online: 24 APR 2017 | DOI: 10.1002/adom.201700196

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    A hologram of red, green, and blue colors is generated in a virtual imaging plane using a plasmonic metasurface based on epitaxial silver. To the best of the authors' knowledge, the presented hologram is the thinnest metasurface hologram operating in transmission mode.

  3. UV-Blocking Photoluminescent Silicon Nanocrystal/Polydimethylsiloxane Composites

    Dongzhi Chen, Wei Sun, Chenxi Qian, Annabelle P. Y. Wong, Laura M. Reyes and Geoffrey A. Ozin

    Version of Record online: 24 APR 2017 | DOI: 10.1002/adom.201700237

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    A new class of nanocrystal-polymer composites with unprecedented UV-blocking properties and impressive photoluminescent, mechanical, and stability attributes that originate from very low loading of silicon nanocrystals in polydimethylsiloxane, is fabricated. Applications for these composites will likely be found in the fields of advanced UV-blocking textiles, cosmetics, photofluids, stretchable electronic devices, anticounterfeiting materials, biological imaging, and diagnostics.

  4. Broadband and Robust Metalens with Nonlinear Phase Profiles for Efficient Terahertz Wave Control

    Quanlong Yang, Jianqiang Gu, Yuehong Xu, Xueqian Zhang, Yanfeng Li, Chunmei Ouyang, Zhen Tian, Jiaguang Han and Weili Zhang

    Version of Record online: 20 APR 2017 | DOI: 10.1002/adom.201601084

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    A broadband and robust terahertz metalens with nonlinear phase profile is proposed. The metalens delivers a transmittance efficiency as high as 45%. A near-field scanning terahertz microscopy system facilitates characterization of a 580 µm focusing spot with a high spatial resolution of 50 µm, and the experimental investigation of the robustness of the metalens under tilted incidence.

  5. Pure Blue and Highly Luminescent Quantum-Dot Light-Emitting Diodes with Enhanced Electron Injection and Exciton Confinement via Partially Oxidized Aluminum Cathode

    Tai Cheng, Zhibin Wang, Shengli Jin, Fuzhi Wang, Yiming Bai, Haoxian Feng, Baogui You, Yang Li, Tasawar Hayat and Zhan'ao Tan

    Version of Record online: 20 APR 2017 | DOI: 10.1002/adom.201700035

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    A partially oxidized aluminum cathode (Al:Al2O3) is applied in ZnCdS/ZnS quantum-dot-based blue light-emitting diodes. Without any electron transport layer/hole transport layer involved, the Al:Al2O3 cathode via simple autoxidation greatly enhances the electron injection and exciton radiative recombination, rendering a significant improvement in luminance (13 000 cd m−2) and current efficiency (1.1 cd A−1), while pure deep blue light emission is guaranteed.