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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 4 — Feb. 1, 2014
  • pp: A242–A247

Thorn-like ZnO/CNT composites via the hydrothermal method with different seed layer

Hsi-Chao Chen, Ssu-Fan Lin, and Kuo-Ting Huang  »View Author Affiliations

Applied Optics, Vol. 53, Issue 4, pp. A242-A247 (2014)

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This paper studies the preparation of a zinc oxide (ZnO) seed layer deposited onto carbon nanotubes (CNTs) via RF sputtering, and the growth of ZnO/CNT composite via the hydrothermal method. The ZnO “thorns” have been successfully deposited on CNT “stems.” The research focuses on the ZnO seed layer with different sputtering times and annealing processes. A scanning electron microscopy (SEM) investigation showed that the length and amount of ZnO thorns decreased with increased sputtering time of the seed layer. The x-ray diffraction (XRD) results showed that the ZnO crystalline structures improved after the seed layer, annealing at peaks of (100), (002), and (101). The results of Raman spectra showed that the ZnO seed layer deposited onto the CNTs, and the annealing, caused damage to the CNTs, reducing the IG/ID ratio from 0.9 to 0.5. Furthermore, the highest UV emission of thorn-like ZnO/CNTs occurred at a peak of 380 nm with seed layer deposition time of 2 min, after annealing.

© 2014 Optical Society of America

OCIS Codes
(160.0160) Materials : Materials
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(160.4236) Materials : Nanomaterials

Original Manuscript: August 29, 2013
Revised Manuscript: November 14, 2013
Manuscript Accepted: November 14, 2013
Published: January 10, 2014

Hsi-Chao Chen, Ssu-Fan Lin, and Kuo-Ting Huang, "Thorn-like ZnO/CNT composites via the hydrothermal method with different seed layer," Appl. Opt. 53, A242-A247 (2014)

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