Journal
NANOSCALE RESEARCH LETTERS
Volume 5, Issue 11, Pages 1836-1840Publisher
SPRINGEROPEN
DOI: 10.1007/s11671-010-9721-z
Keywords
ZnO; Atomic layer deposition; Carbon nanotubes; Hybrid nanomaterials; Hydrothermal; Solar cells
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In this article, direct coating of ZnO on PECVD-grown multi-walled carbon nanotubes (MWCNTs) is achieved using atomic layer deposition (ALD). Transmission electron microscopy investigation shows that the deposited ZnO shell is continuous and uniform, in contrast to the previously reported particle morphology. The ZnO layer has a good crystalline quality as indicated by Raman and photoluminescence (PL) measurements. We also show that such ZnO layer can be used as seed layer for subsequent hydrothermal growth of ZnO nanorods, resulting in branched CNT-inorganic hybrid nanostructures. Potentially, this method can also apply to the fabrication of ZnO-based hybrid nanostructures on other carbon nanomaterials.
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