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Optical and magnetic properties of Zn1−xCoxO nanorod arrays fabricated by hydrothermal method

YALU ZUO1, SHIHUI GE1,* , LI ZHANG1, XUEYUN ZHOU1, SHIMING YAN1, YUHUA XIAO1

Affiliation

  1. Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, P.R. China

Abstract

Zn1−xCoxO (x = 0.1, 0.2) nanorods were prepared by hydrothermal method. The morphology of the nanorods was studied by field emission scanning electron microscopy. The results from x-ray diffraction and transmission microscopy indicate that the as-prepared nanorods have single-crystalline wurtzite structure, and no metallic Co or other secondary phases were found. The vibrating sample magnetometer measurement showed that Zn0.8Co0.2O nanorods possess room temperature ferromagnetism (RTFM). The nanorods exhibit strong red emission as evidence by the photoluminescence spectra..

Keywords

Zn1−xCoxO nanorods, Room temperature ferromagnetism, Photoluminescence.

Submitted at: Dec. 17, 2007
Accepted at: Feb. 18, 2008

Citation

YALU ZUO, SHIHUI GE, LI ZHANG, XUEYUN ZHOU, SHIMING YAN, YUHUA XIAO, Optical and magnetic properties of Zn1−xCoxO nanorod arrays fabricated by hydrothermal method, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 2, pp. 400-404 (2008)