المجلة الدولية للعلوم والتقنية

Despite the good results of thin-film solar cells in terms of providing the possibility of reducing manufacturing costs compared to traditional silicon-based solar cells, many disadvantages related to the materials used have been highlighted; some materials are rare, unavailable, and expensive, such as: gallium, indium, and selenide, and some materials are toxic, such as arsenic and cadmium; therefore, there is a need to identify thin-film materials that consist of abundant, less toxic and efficient elements. Copper zinc tin sulfide (CZTS) film is a good material for thin-film solar cells. Because it has characteristics that make it an ideal absorbent material, it is used to form the absorbent layer, and its components are available, which enables it to replace copper indium gallium (CIGS) and cadmium sulfide (CdTe); Because it consists of toxic substances and expensive materials; Accordingly, in this research, a thin-film solar cell was designed using non-toxic materials, using a simulation program for thin-film solar cells. The solar cell was designed from a copper zinc tin sulfide (CZTS) compound as an absorbent layer due to its excellent photoelectric properties and its abundant materials in the ground and non-toxic. Toxic, titanium dioxide (〖TiO〗_2) as an insulating layer as an alternative to cadmium sulfide because it contains the toxic element cadmium, and zinc oxide (ZnO) as a permeable layer, to obtain the distinctive characteristics of the designed solar cell represented by cell efficiency, fill factor (FF), open circuit voltage (V_oc), and short-circuit current density. (J_SC), and study the effect of temperature on the distinctive characteristics of the designed solar cell. The study showed that a solar cell design with efficiency η = 29.735%, fill factor FF = 87.66%, open circuit voltage V_oc= 1.0385 v, and short circuit current density J_SC= 32.712090 mA/Cm^2, in addition to that, the effect of temperature on the properties of The solar cell, as it was shown that with increasing temperature the efficiency decreases, the short circuit current density increases, and the open circuit voltage and fill factor decrease. key words: Thin film solar cell - Copper Zinc Tin Sulphide (CZTS)- Efficiency – Filling Factor –Short circuit current - short circuit voltage - Temperature -One-dimensional simulation program (SCAPS).