Nanotube Arrays: Joining Copper Oxide Nanotube Arrays Driven by the Nanoscale Kirkendall Effect (Small 15/2013)

Authors

  • Shu Rong Chun,

    1. School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
    2. GLOBALFOUNDRIES Singapore Pte Ltd, 60 Woodlands Industrial Park D, Street 2, Singapore 738406, Singapore
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  • Wardhana Aji Sasangka,

    1. School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
    2. Advanced Materials for Micro- and Nano-Systems, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore 117576, Singapore
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  • Mei Zhen Ng,

    1. School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
    2. GLOBALFOUNDRIES Singapore Pte Ltd, 60 Woodlands Industrial Park D, Street 2, Singapore 738406, Singapore
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  • Qing Liu,

    1. Temasek Laboratories, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
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  • Anyan Du,

    1. GLOBALFOUNDRIES Singapore Pte Ltd, 60 Woodlands Industrial Park D, Street 2, Singapore 738406, Singapore
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  • Jie Zhu,

    1. GLOBALFOUNDRIES Singapore Pte Ltd, 60 Woodlands Industrial Park D, Street 2, Singapore 738406, Singapore
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  • Chee Mang Ng,

    1. GLOBALFOUNDRIES Singapore Pte Ltd, 60 Woodlands Industrial Park D, Street 2, Singapore 738406, Singapore
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  • Zhi Qiang Liu,

    1. GLOBALFOUNDRIES Singapore Pte Ltd, 60 Woodlands Industrial Park D, Street 2, Singapore 738406, Singapore
    2. Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117576, Singapore
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  • Sing Yang Chiam,

    1. Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, Singapore
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  • Chee Lip Gan

    Corresponding author
    1. School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore
    2. Advanced Materials for Micro- and Nano-Systems, Singapore-MIT Alliance, 4 Engineering Drive 3, Singapore 117576, Singapore
    • School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore.
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Abstract

original image

Two stacks of nanotube arrays are joined together, driven by the nanoscale Kirkendall effect. The background images show elemental mapping of copper and oxygen. The contrast of colors shown in the maps represents the intensity of the signals. Such mapping analysis reveals that the interface of the joined nanotubes is copper oxide. On page 2546, C. L. Gan and co-workers demonstrate that the transformation from Cu nanowire arrays into copper oxide nanotube arrays can be coupled with the joining of the stacked chips in a single step process. By controlling the environment, temperature, and duration, joined Cu2O or CuO nanotube stacked chips can be achieved, which serve as a platform for the further development of stacked nanostructured devices.

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