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Recently Published Articles

  1. Capture and Concentration of Light to a Spot in Plastic Lightguides by Circular Luminophore Arrangements

    Bardo J. Bruijnaers, Albertus P. H. J. Schenning and Michael G. Debije

    Article first published online: 21 NOV 2014 | DOI: 10.1002/adom.201400414

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    By aligning dichroic fluorescent dyes in semi- and circular patterns using liquid crystals, emitted light can be focused towards small regions or to the center of a lightguide. This enhanced light focusing could find use in a great number of applications, including LEDs and luminescent solar concentrators.

  2. Light-Emitting Liquid Crystal Displays Based on an Aggregation-Induced Emission Luminogen

    Dongyu Zhao, Fan Fan, Juan Cheng, Yilin Zhang, Kam Sing Wong, Vladimir G. Chigrinov, Hoi Sing Kwok, Lin Guo and Ben Zhong Tang

    Article first published online: 20 NOV 2014 | DOI: 10.1002/adom.201400428

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    A liquid crystalline molecule tetraphenyle­thylene-PPE with aggregation-induced emissive characteristics is synthesized. Anisotropic emission is obtained through the dissolution of tetraphenylethylene-PPE into nematic liquid crystals. Two types of photoluminescent display devices are fabricated with the mixture. This approach provides a path for building energy-saving light-emitting liquid crystal display devices that avoid the aggregation-caused quenching problem.

  3. Tuning the Luminescence of Phosphors: Beyond Conventional Chemical Method

    Gongxun Bai, Ming-Kiu Tsang and Jianhua Hao

    Article first published online: 20 NOV 2014 | DOI: 10.1002/adom.201400375

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    Physical methods such as electric-field, magnetic-field, mechanical stress, temperature, photons, and ionizing radiation can tune the luminescence of phosphors, which should be beneficial for our understanding the fundamentals of luminescence and widespread applications. Recent advances in tuning the luminescence in a wide range of phosphors, including metal-ion-doped compounds, semiconductors, 2D layered nanomaterials, and organic phosphors, have been reviewed.

  4. Rational Design of Nanoparticles with Efficient Lanthanide Luminescence Sensitized by Iridium(III) Complex for Time-Gated Luminescence Bioimaging

    Qiang Zhao, Yahong Liu, Yunfa Cao, Wen Lv, Qi Yu, Shujuan Liu, Xiangmei Liu, Mei Shi and Wei Huang

    Article first published online: 19 NOV 2014 | DOI: 10.1002/adom.201400464

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    A design strategy of nanoparticles with efficient lanthanide luminescence sensitized by Ir(III) complex is developed. The nanoprobe exhibits the advantages of long excitation wavelength, high quantum efficiency, narrow emission bands, water dispersibility, and biocompatibility, and is applied in bioimaging. This design is a versatile and convenient way to realize excellent lanthanide(III) complex-based bioprobes.

  5. Photoinduced Charge-Carrier Dynamics of Phototransistors Based on Perylene Diimide/Reduced Graphene Oxide Core/Shell p–n Junction Nanowires

    Hojeong Yu, Piljae Joo, Dajeong Lee, Byeong-Su Kim and Joon Hak Oh

    Article first published online: 19 NOV 2014 | DOI: 10.1002/adom.201400346

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    Multicomponent phototransistors prepared using perylene diimide/reduced graphene oxide core/shell p–n heterojunction nanowires exhibit ambipolar charge transport, high photoresponsivity, and photocurrent multiplication, due to the synergistic interplay of the core and shell materials. The photoinduced charge-carrier dynamics are investigated by analyzing charge compensation rates and external quantum efficiencies, which are superior to those of the single-component system.

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