Multisegmented nanotubes by surface-selective atomic layer deposition
Bae C, Zierold R, Moreno JMM, Kim H, Shin H, Bachmann J, Nielsch K (2013)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2013
Journal
Publisher: Royal Society of Chemistry
Book Volume: 1
Pages Range: 621-625
DOI: 10.1039/c2tc00522k
Abstract
We describe a general strategy for fabricating multisegmented nanotubes and nanopores via sequential, surface-selective modification with organic and inorganic layers combined with in situ formation of nanopores by electrochemical anodization. We found that cylindrical alumina nanopores can be continuously anodized upon coating thin organic and/or inorganic layers such as octadecyltrichlorosilane (OTS)-self-assembled monolayers (SAMs), and atomic layer deposition (ALD)-grown TiO2, ZnO, and ZrO2, allowing for three-dimensionally site-selective ALD. As model systems, we show that (1) isolated metal oxide nanotubes can be prepared as-grown with controlled opening at the distal ends of tubes, (2) inner surfaces of nanopores can be chemically and physically modified in a segmented manner, and (3) a nanotube core-multisegmented shell geometry can be achieved. We believe that the present approach will open up new avenues for realizing complex nanodevices such as nanofluidic diodes, photovoltaic junctions, and transistors by adding a degree of freedom in the synthesis of nanotubes/pores in their axis direction.
Authors with CRIS profile
Involved external institutions
Germany (DE)
Korea, Republic of (KR)How to cite
APA:
Bae, C., Zierold, R., Moreno, J.M.M., Kim, H., Shin, H., Bachmann, J., & Nielsch, K. (2013). Multisegmented nanotubes by surface-selective atomic layer deposition. Journal of Materials Chemistry C, 1, 621-625. https://dx.doi.org/10.1039/c2tc00522k
MLA:
Bae, Changdeuck, et al. "Multisegmented nanotubes by surface-selective atomic layer deposition." Journal of Materials Chemistry C 1 (2013): 621-625.
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