Abstract—Our present study on Zinc Oxide is for window layer of thin film based solar cells. ZnO thin films are of great importance and yields very promising results. ZnO thin films prepared by Sol-Gel process using spin coating at a speed of 2000 RPM for 30 seconds. The precursor sol was prepared by mixing of 2-proponal and zinc acetate dehydrate (ZAD) and using mono-ethanolamine (MEA) as stabilizer. ZnO sol was prepared varying sol concentration by 0.1M, 0.3M and 0.5M respectively. A comparison of optical and structural properties of ZnO annealed and un-annealed thin films are done by the help of XRD, SEM and UV-VIS-IR spectroscopy.

Index Terms—Zinc oxide, sol-gel, spin coating, optical characterization.

The authors are with the COMSATS Institute of Information Technology, Islamabad, Pakistan (e-mail: ansfarooq89@gmail.com, muhammad_kamran@comsats.edu.pk).

Cite: Ans Farooq and Muhammad Kamran, "Effect of Sol Concentration on Structural and Optical Behavior of ZnO Thin Films Prepared by Sol-Gel Spin Coating," International Journal of Applied Physics and Mathematics  vol. 2, no. 6, pp. 430-432, 2012.