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Optical and electrical properites of ZnO nanorods synthesized by nanoparticle assisted pulsed-laser deposition
Author(s): Tatsuo Okada; Kou Kawashima; Minoru Ueda; Yoshiki Nakata
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Paper Abstract

This paper describes the characterization of nano-structured ZnO crystals synthesized by laser ablation deposition method. The influence of the synthesis conditions on the morphologies of the ZnO crystals was investigated in detail. ZnO nanorods with a hexagonal- and pyramidal top surface were obtained under limited growth conditions. The most critical process parameter for the growth of ZnO nanorods was gas pressure, whose process window was in the range from 1.0 to 5 Torr. In a high temperature background gas, on the other hand, unique nano-structured ZnO crystals were obtained, including a nano-wire pig-tailed ZnO nano-rod which has a nano-wire of less than 100 nm in diameter at the hexagonal top of nano-rods, a ZnO nano-cone with a bottom diameter of 500 nm and a height of 2 μm and so on. The unique geometrical shapes have a great potential in the application to the field emission devices and nano-optics.

Paper Details

Date Published: 12 April 2005
PDF: 8 pages
Proc. SPIE 5713, Photon Processing in Microelectronics and Photonics IV, (12 April 2005); doi: 10.1117/12.591412
Show Author Affiliations
Tatsuo Okada, Kyushu Univ. (Japan)
Kou Kawashima, Kyushu Univ. (Japan)
Minoru Ueda, Kyushu Univ. (Japan)
Yoshiki Nakata, Kyushu Univ. (Japan)

Published in SPIE Proceedings Vol. 5713:
Photon Processing in Microelectronics and Photonics IV
Jim Fieret; David B. Geohegan; Friedrich G. Bachmann; Willem Hoving; Frank Träger; Peter R. Herman; Jan J. Dubowski; Tatsuo Okada; Kunihiko Washio; Yongfeng Lu; Craig B. Arnold, Editor(s)

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