Journal
MATERIALS LETTERS
Volume 72, Issue -, Pages 25-28Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2011.12.057
Keywords
Electrochemical deposition; ZnO nanotubes; Graphene
Funding
- National Research Foundation of Korea (NRF)
- Korean Government (MEST) [2009-0076599, 2011-0006268, 2011-0000427]
- National Research Foundation of Korea [2007-0054845, 2009-0076599, 2009-0093247] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Dense and vertical ZnO nanotubes were directly grown on single-layer graphene by convenient electrochemical deposition method, without ZnO seed layer, 02 bubbling, electrolyte assistance, or additional etching process. The formation of the ZnO nanotubes was governed by the self-etching process with H+ generated during the growth process. The hole depth of the nanotubes can be controlled by adjusting deposition time. The nanotubes have weak visible luminescence intensity in photoluminescence spectrum, indicating excellent crystalline properties. The transmittance of the nanotubes on graphene/glass electrode was above 75% over entire visible range. (C) 2011 Elsevier B.V. All rights reserved.
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