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Characterization and optical properties of ZnO tetrapod nanorods synthesized by two-step method

J. WEI1, B. Y. MAN1,* , M. LIU1, C. S. CHEN1, A. H. LIU1, L. B. FENG1

Affiliation

  1. College of Physics and Electronics, Shandong Normal University, Jinan, 250014, P. R. China

Abstract

Uniform ZnO tetrapod nanorods were produced by the thermal evaporation zinc powder at 900on zinc thin films deposited by Pulse Laser Deposition (PLD). The morphology and microstructure of the nanotetrapods were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). The zinc thin films on the sapphire substrates prepared by PLD will make the ZnO tetrapod nanorods grown uniformly with a high crystal quality and thick arms. The room-temperature photoluminescence spectrum (PL) was carried out, besides UV and green emission, a blue band centred at 460nm was recorded and analyzed in this work..

Keywords

T-ZnO nanorods, Octa-twin, Crystal growth, Photoluminescence.

Submitted at: June 22, 2009
Accepted at: Nov. 19, 2009

Citation

J. WEI, B. Y. MAN, M. LIU, C. S. CHEN, A. H. LIU, L. B. FENG, Characterization and optical properties of ZnO tetrapod nanorods synthesized by two-step method, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 11, pp. 1830-1836 (2009)