%0 Journal Article
%T Effect of annealing atmosphere on structural and optical properties of CZTS thin films prepared by spin-coating
%A A Kowsar
%A M Rahaman
%A M Sultana
%A MS Bashar
%A R Matin
%A S Akhanda
%A ZH Mahmood
%J Bangladesh Journal of Scientific and Industrial Research
%D 2018
%R https://doi.org/10.3329/bjsir.v53i1.35905
%X Copper zinc tin sulfide (CZTS) thin films were deposited by spin coating procedure of a sol-gel prepared from the solution of copper (II)chloride, zinc acetate, tin (II) chloride and thiourea in 2-methoxyehtanol followed by annealing under two different atmospheres viz. N2 gas and Sulphur (S) powder at 530 ˇăC for 5 minutes. The effect of different annealing atmosphere on the structural and optical properties of the CZTS thin films were investigated. The X-ray diffraction study showed higher intensity peaks for films annealed under N2 gas ambient. SEM study revealed that the surfaces of the films in both cases are non-uniform. Films annealed in N2 gas atmosphere showed better absorption coefficient (exceeding 104 cm-1 in the visible region) than the sulphurized ones. The optical band gap (Eg) of the films were found to be in the range of 1.46 - 1.53 eV. Bangladesh J. Sci. Ind. Res.53(1), 13-20, 2018
%K CZTS thin-film
%K Spin coating
%K X-ray diffraction
%K Scanning electron microscope
%K UV-visible spectrometry
%U https://www.banglajol.info/index.php/BJSIR/article/view/35905