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Recently Published Articles

  1. Light-Driven Wide-Range Nonmechanical Beam Steering and Spectrum Scanning Based on a Self-Organized Liquid Crystal Grating Enabled by a Chiral Molecular Switch

    Hung-Chang Jau, Yannian Li, Cheng-Chang Li, Chun-Wei Chen, Chun-Ta Wang, Hari Krishna Bisoyi, Tsung-Hsien Lin, Timothy J. Bunning and Quan Li

    Article first published online: 31 OCT 2014 | DOI: 10.1002/adom.201400457

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    Optically controlled wide-range beam steering and spectrum scanning are demonstrated by a self-organized liquid crystal grating. The diffraction angle can be tuned around 30° upon light irradiation. In addition, a reversible spectrum scanning system can be constructed using the optical tunable grating. This highly tunable light-driven grating has great potential in light propagation control and spectroscopy applications.

  2. Carbon Dot-Incorporated PMO Nanoparticles as Versatile Platforms for the Design of Ratiometric Sensors, Multichannel Traceable Drug Delivery Vehicles, and Efficient Photocatalysts

    Juying Lei, Lingang Yang, Deli Lu, Xuefeng Yan, Chen Cheng, Yongdi Liu, Lingzhi Wang and Jinlong Zhang

    Article first published online: 31 OCT 2014 | DOI: 10.1002/adom.201400364

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    Using silylated carbon dots as the framework fluorogen, periodic mesoporous organosilica (PMO) nanoparticles (NPs) possessing unimpeded, ordered meso­pores, and excellent one- and two-photon excitation fluorescence properties are obtained. These novel, fluorescent NPs serve as platforms for the design and fabrication of ratiometric sensors, multichannel traceable drug delivery vehicles, and efficient photocatalysts.

  3. Broadband Light Out-Coupling Enhancement of Flexible Organic Light-Emitting Diodes Using Biomimetic Quasirandom Nanostructures

    Rong Wang, Lu-Hai Xu, Yan-Qing Li, Lei Zhou, Chi Li, Qing-Dong Ou, Jing-De Chen, Su Shen and Jian-Xin Tang

    Article first published online: 29 OCT 2014 | DOI: 10.1002/adom.201400391

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    A broadband light extraction scheme using the biomimetic quasirandom nanostructures is demonstrated in a quest toward efficient light manipulation for flexible organic light-emitting diodes. The enhanced out-coupling of waveguided light and superior color stability for wide viewing angles can be achieved simultaneously with the broadening of the periodicity and the random orientation for emission directionality.

  4. Large-Scale Green Synthesis of Fluorescent Carbon Nanodots and Their Use in Optics Applications

    Jie Wang, Fei Peng, Yimei Lu, Yiling Zhong, Siyi Wang, Meifeng Xu, Xiaoyuan Ji, Yuanyuan Su, Liangsheng Liao and Yao He

    Article first published online: 29 OCT 2014 | DOI: 10.1002/adom.201400307

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    A 25 min microwave reaction using 20 mL milk achieves about 0.3 g of fluorescent carbon nanodots (C-dots). Furthermore, the as-prepared C-dots can serve as high-quality fluorescent stains and are highly efficacious for a variety of optics-related applications, such as in vitro and in vivo bioimaging, printing inks, and sensors.

  5. Ultrabroadband Plasmonic Absorber for Terahertz Waves

    Yong Zhi Cheng, Withawat Withayachumnankul, Aditi Upadhyay, Daniel Headland, Yan Nie, Rong Zhou Gong, Madhu Bhaskaran, Sharath Sriram and Derek Abbott

    Article first published online: 28 OCT 2014 | DOI: 10.1002/adom.201400368

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    Localized surface plasmon resonances are employed for ultrabroadband absorption at terahertz frequencies. The absorber created from a patterned silicon substrate can achieve a bandwidth of 90%. The broadband performance and structural simplicity are ideal for various emerging applications.