Effects of Al and Mn Dopant on Structural and Optical Properties of ZnO Thin Film Prepared by Sol-Gel Route


  • Sumetha SUWANBOON 1Materials Science Program, Faculty of Science, Prince of Songkla University, Hat Yai, Songkla 90112
  • Tanattha RATANA Department of Physics, Faculty of Science, King Mongkut’s University of Technology Thonburi, Bangkok 10140
  • Thanakorn RATANA Industrial Chemistry Department, Faculty of Applied Science, King Mongkut’s Institute of Technology North Bangkok, Bangkok 10800


ZnO, thin film, doping effect, structural properties, optical properties


Undoped, 10 wt% Al and 10 wt% Mn doped ZnO thin films were deposited on a glass substrate by sol-gel dip coating. Al ions played an important role in improvement of the c-axis orientation, while Mn ions inhibited the growth along c-axis. The average grain size decreased when doping ZnO with Al and Mn. The smallest average grain size was 25 nm, obtained with 10 wt% Mn doping. The band gap values of prepared thin films varied in the range of 3.24 - 3.96 eV.


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How to Cite

SUWANBOON, S., RATANA, T., & RATANA, T. (2011). Effects of Al and Mn Dopant on Structural and Optical Properties of ZnO Thin Film Prepared by Sol-Gel Route. Walailak Journal of Science and Technology (WJST), 4(1), 111–121. Retrieved from https://wjst.wu.ac.th/index.php/wjst/article/view/129