Poly-ols Based Sol-Gel Synthesis of Zinc Oxide Thin Films

Gururaj V. Naik, Purdue University
Navakanta Bhat, Indian Institute of Science, Bangalore

Date of this Version



J. Electrochem. Soc. 2011 volume 158, issue 2, H85-H87


We demonstrate that the structural and optical properties of a sol-gel deposited zinc oxide thin film can be tuned by varying the composition of the sol, consisting of ethylene glycol and glycerol. A systematic study of the effect of the composition of sol on the mean grain size, thickness, and defect density of the zinc oxide film is presented. About 20% glycerol content in the sol is observed to improve the quality of the film, as evaluated by X-ray diffraction and photoluminescence studies. Thus, optimizing the composition of the sol for about 60 nm thick ZnO film using 20% glycerol resulted in the zinc oxide film that is about 80% transparent in visible spectrum, exhibiting electrical resistivity of about 18 Omega cm and field-effect mobility of 0.78 cm(2)/(V s). (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3515894] All rights reserved.


Nanoscience and Nanotechnology