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Nanotube Arrays: Joining Copper Oxide Nanotube Arrays Driven by the Nanoscale Kirkendall Effect (Small 15/2013)
Author(s) -
Chun Shu Rong,
Sasangka Wardhana Aji,
Ng Mei Zhen,
Liu Qing,
Du Anyan,
Zhu Jie,
Ng Chee Mang,
Liu Zhi Qiang,
Chiam Sing Yang,
Gan Chee Lip
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201370090
Subject(s) - kirkendall effect , nanotube , materials science , nanotechnology , copper , oxide , nanoscopic scale , copper oxide , nanowire , carbon nanotube , metallurgy
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 Cu 2 O or CuO nanotube stacked chips can be achieved, which serve as a platform for the further development of stacked nanostructured devices.