Synthesis and Characterizations of Cu2NixZn1-xSnS4 for Solar Cells Applications (x = 0.0, 0.1, 0.2, 0.3, and 0.4)

Abstract

In This work synthesized Cu2NixZn1-xSnS4 samples and studied structural and optical properties and calculated efficiency of the cells. The Cu2NixZn1-xSnS4 samples, when (x = 0.0, 0.1, 0.2, 0.3and 0.4) were synthesized using hydrothermal method at 100C° for 4 hrs. Synthesized, structured and optical properties were studied in details using Fourier Transform Infrared spectroscopy (FT-IR) and Ultraviolet Visible Spectroscopy(UV-visible).FT-IR spectroscopy confirmed of spinal solar cells showing the absorption band around 662 cm-1, 1115 cm-1, 1641 cm-1, 2352 cm-1, 2924 cm-1 ,and 3260 cm-1. Absorption was found to be 0.0910 (a.u), 0.0898 (a.u), 0.0790 (a.u), 0.0677 (a.u) and 0.0609 (a.u) at the same wavelength 427.331 nm, and the absorption coefficient was found to be 420.527 %, 415.689 %, 368.768 %, 321.023 % and 290.322 % at the same wavelength 472.067 nm. The optical band gap energy were calculated using UV-Vis Spectroscopy, they were found to be 2.600 eV, 2.612 eV, 2.625 eV, 2.648 eV, and 2.664 eV which are semiconductor. The I-V curve was used to calculate the efficiency cells. The efficiency obtained from the cells were 0.142 %, 0.134 % , 0.126 % , 0.113 % and 0.1003 %, respectively. The energy band gap increased with the increasing of Ni concentration and the efficiency of cells were decreasing, due to the nickel effectiveness. In the future work, we recommend to use other chemical elements, with various methods, to study temperature effect and use of XRD technique.