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Distribution Pattern of Length, Length Uniformity, and Density of TiO32− Quantum Wires in an ETS-10 Crystal Revealed by Laser-Scanning Confocal Polarized Micro-Raman Spectroscopy

Authors

  • Dr. Nak Cheon Jeong,

    1. Korea Center for Artificial Photosynthesis and Department of Chemistry, Sogang University, Seoul 121-742 (Korea)
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    • These authors contributed equally to this work.

  • Dr. Hyunjin Lim,

    1. Department of Physics, Sogang University, Seoul 121-742 (Korea)
    2. Current address: Agency for Defense Development, Daejeon 305-152 (Korea)
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    • These authors contributed equally to this work.

  • Prof. Dr. Hyeonsik Cheong,

    1. Department of Physics, Sogang University, Seoul 121-742 (Korea)
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  • Prof. Dr. Kyung Byung Yoon

    Corresponding author
    1. Korea Center for Artificial Photosynthesis and Department of Chemistry, Sogang University, Seoul 121-742 (Korea)
    • Korea Center for Artificial Photosynthesis and Department of Chemistry, Sogang University, Seoul 121-742 (Korea)
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  • We thank the Korea Center for Artificial Photosynthesis located in Sogang University and funded by MEST through the National Research Foundation of Korea (NRF-2009-C1 AA A001-2009-0093879). We also thank Jiyoon Lee for providing us the graphics. H.C. further thanks the Future-Based Technology Development Program (Nano Fields) of the NRF funded by the MEST (2008-2004744).

Abstract

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Inner beauty: The titanosilicate molecular sieve ETS-10 has TiO32− quantum wires (QWs) of varying length and local density along the [110] and [1equation image0] directions (see picture). Analysis of the distribution of the QWs within a crystal using laser-scanning confocal polarized micro-Raman spectroscopy shows that they are not distributed evenly but in a symmetrical manner in an interesting pattern.

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