Composition Dependence on Structural and Optical Properties of MgxZn1-xO Thin Films Prepared by Sol-Gel Method

Bulletin of the Korean chemical society

Soaram Kim¹  Jin Soo Kim¹  ¶¹  Keun Tae Noh¹  Jae-Young Leem¹  Giwoong Nam¹  Dong-Yul Lee¹  Kwang Gug Yim¹  Min Su Kim¹  Jong Su Kim¹ 

关键词: Magnesium;    Zinc oxide;    Sol-gel method;    X-ray diffraction;    Photoluminescence;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

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.

【 授权许可】

Unknown