Advanced Optical Materials

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  1. Class Ceramics: Tuneable Nanostructuring of Highly Transparent Zinc Gallogermanate Glasses and Glass-Ceramics (Advanced Optical Materials 4/2014) (page 402)

    Sébastien Chenu, Emmanuel Véron, Cécile Genevois, Guy Matzen, Thierry Cardinal, Auriane Etienne, Dominique Massiot and Mathieu Allix

    Article first published online: 14 APR 2014 | DOI: 10.1002/adom.201470026

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    Highly transparent nanostructured gallogermanatebased glass and glass-ceramic materials are reported on page 364 by M. Allix and co-workers. These materials present nanoscale phase separations, whose size can be tailored depending on the nominal composition. The large variety of accessible compositions combined with precise control of the nanostructure offer a great opportunity to design new highly transparent nanostructured materials with a wide range of tuneable optical properties both in the visible and the infrared ranges.

  2. Masthead: (Advanced Optical Materials 4/2014)

    Article first published online: 14 APR 2014 | DOI: 10.1002/adom.201470025

  3. Optical Diodes: A Plasmonic Photonic Diode for Unidirectional Focusing, Imaging, and Wavelength Division De-Multiplexing (Advanced Optical Materials 4/2014) (page 354)

    Xinping Zhang, Jian Zhang, Hongmei Liu and Tianrui Zhai

    Article first published online: 14 APR 2014 | DOI: 10.1002/adom.201470024

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    A plasmonic photonic diode for unidirectional focusing, imaging, and wavelength-division de-multiplexing is achieved through the holographic imprinting of a discrete optical lens into metallic photonic crystals (MPCs). X. P. Zhang et al. focus laser beams of different colors to different angles and different focal lengths with a large dispersion using such a thin-film device. Realization of such functions is based on the spatial chirping of the MPCs, where the gold nanolines are arranged with different periods on different sites of the device.

  4. Photodetectors: Silicon-Based Visible-Blind Ultraviolet Detection and Imaging Using Down-Shifting Luminophores (Advanced Optical Materials 4/2014) (page 313)

    Xing Sheng, Cunjiang Yu, Viktor Malyarchuk, Yu-Heng Lee, Seungho Kim, Taehwan Kim, Ling Shen, Chris Horng, Jordan Lutz, Noel C. Giebink, Jongwook Park and John A. Rogers

    Article first published online: 14 APR 2014 | DOI: 10.1002/adom.201470023

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    J. A. Rogers and co-workers exploit a design for visible-blind ultraviolet detection using silicon photodiodes and down-shifting luminophores. The fabricated device exhibits a selective UV response between 300 nm and 360 nm, which exceeds that in the visible range by about 103. An array of such detectors demonstrates the potential for using these structures in UV imagers, and suggests compatibility with large-area, CMOS-compatible Si electronics and photonics.

  5. Transparent Electrodes: ZnO/Polyfluorene Hybrid LED on an Efficient Hole-Transport Layer of Graphene Oxide and Transparent Graphene Electrode (Advanced Optical Materials 4/2014) (page 304)

    Kamran ul Hasan, Mats O. Sandberg, Omer Nur and Magnus Willander

    Article first published online: 14 APR 2014 | DOI: 10.1002/adom.201470021

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    An rGO/GO/PFO/ZnO/Al LED is fabricated via simple solution-based techniques by K. ul Hasan Hasan et al. On page 326, they show how graphene can be a simple solution-processable substitute to PEDOT:PSS as an effective holetransport (electron-blocking) layer, and ITO as a transparent conductive electrode in optoelectronic devices. The wide emission range of this LED opens up prospects for demonstrating white light-emitting devices from this novel combination. This could pave the way for cheaper displays.

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