EFFECT OF DOPING MAGNESIUM (Mg) ON STRUCTURE AND OPTICAL PROPERTIES OF ZnO THIN FILM USING SOL-GEL SPIN COATING METHOD
Nurdin Siregar, Motlan and Johnny Panggabean
Faculty of Mathematics and Natural Sciences
Medan State University
Email: nurdinfis[at]gmail.com
Abstract
Magnesium (Mg) doped ZnO Thin Film has been successfully synthesized using the sol-gel spin coating method. The materials was used in this research is zinc acetate dehydrate, magnesium, isopropanol and diethanolamine as the precursor material, doping, solvent and stabilizer. Magnesium (Mg) doped ZnO thin films with a variation of 0.5; 1,0; 1,5; 2.0 and 2.5% were deposited on the FTO conductive glass subtraction. The results of ZnO: Mg thin film characterization with XRD showed all hexagonal wurtize crystal structures with the smallest crystal size of 24 nm for 0.5% doping and 28 nm maximum for 2.5% Mg doping. The results of SEM characterization showed the morphology of ZnO: Mg thin films in the form of globular granules and almost uniform. The results of ZnO thin film characterization: with UV-Vis showed the greatest transmittance and absorbance values in the wavelength range of 350 nm to 400 nm.
Keywords: ZnO thin films, Magnesium (Mg), Sol-gel Spin Coating.
Topic: Nano-materials and applications