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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 9
BKCSDE 32(9)
September 20, 2011

Title	Composition Dependence on Structural and Optical Properties of Mg_xZn_1-xO Thin Films Prepared by Sol-Gel Method
Author	Min Su Kim, Keun Tae Noh, Kwang Gug Yim, Soaram Kim, Giwoong Nam, Dong-Yul Lee, Jin Soo Kim, Jong Su Kim,¶, Jae-Young Leem,*,
Keywords	Magnesium, Zinc oxide, Sol-gel method, X-ray diffraction, Photoluminescence
Abstract	The MgxZn1-xO thin films with the various content ratio ranging from 0 to 0.4 were prepared by sol-gel spincoating method. To investigate the effects of content ratio on the structural and optical properties of the MgxZn1-xO thin films, scanning electron microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL) were carried out. With increase in the content ratio, the grain size of the MgxZn1-xO thin films was increased, however, at the content ratio above 0.2, MgO particles with cubic structure were formed on the surface of the MgxZn1-xO thin films, indicating that the Mg content exceeded its solubility limit in the thin films. The residual stress of the MgxZn1-xO thin films is increased with increase in the Mg mole fraction. In the PL investigations, the bandgap and the activation energy of the MgxZn1-xO thin films was increased with the Mg mole fraction.
Page	3453 - 3458
Full Text	PDF

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