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

• Published in: Materials science in semiconductor processing Vol. 24; pp. 157 - 163
• Main Authors: Akkaya Arıer, Ümit Özlem, Uysal, Bengü Özuğur
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-08-2014; Elsevier
• Subjects: Activation energy; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Liquid phase epitaxy; deposition from liquid phases (melts, solutions, and surface layers on liquids); Materials science; Materials synthesis; materials processing; Methods of deposition of films and coatings; film growth and epitaxy; Nanoparticles; Nanopowders; Nanoscale materials and structures: fabrication and characterization; Nanostructure; Optical properties; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; Physics; Scanning electron microscopy; Semiconductors; Size; Sol–gel; Spectrophotometers; Spin coating; Thin films; Zinc oxide; ZnO; Nanoparticles; Thin films; ZnO; Sol–gel; Size; Water; Atomic force microscopy; Scanning electron microscopy; II-VI compound; Nanolayers; XRD; Sol―gel; Energy gap; Transmission electron microscopy; Spectrophotometers; Optical properties; Spin-on coatings; Optical characteristic; Zinc oxide; Spin-on coating; Activation energy; Sol-gel process
• ISSN: 1369-8001; 1873-4081
• DOI: 10.1016/j.mssp.2014.03.033

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 26.3kJ/mol, and optical band gap of 3.27–3.31eV is proportional to the Dea:water ratio.