The effects of Dea:water ratio on the properties of ZnO nanofilms obtained by spin coating method

摘要

In this work, the ZnO were fabricated with the sol-gel spin coating method, and the effects of the Dea:water ratios on the properties of the as-prepared ZnO thin films were determined by using a X-ray diffractometer, transmission electron microscope, scanning electron microscope, atomic force microscope, ultraviolet-visible spectrophotometer, and spectrophotometer. Experimental results indicated that the Dea:water ratio affected the structural and optical properties of the ZnO films considerably. The activation energy for the particle growth of ZnO nanofilms and the effects of the Dea:water ratios on the band gap values of the ZnO films were investigated. The film has an activation energy of 26.3 kj/ mol, and optical band gap of 3.27-3.31 eV is proportional to the Dea:water ratio.