Abstarct: Cu(In,Ga)S2 thin laxyer is a good candidate as absorber laxyer in solar cell application, which devoted much attention due to its high efficiency and low manufacturing cost in comparison with solar cell baxsed Si. As a cheaper method than the vacuum-baxsed methods, procedures baxsed solutions have been successfully used for the manufacture of electronic components such as transistors and solar cells. In this study, the CIS2 absorber laxyers with different values of thickness and pH were investigated. The results showed a decrease in the band gap energies by increasing the thickness of the thin film in the constant pH. And it’s also shown that the resistivities of laxyers decrease in lower pH and higher the thickness. The depositing of these laxyers on different substrates (as rigid and flexible substrates) was also done. Their results were shown that the prepared laxyers on flexible substrates have lower conductivity. In the other work, the CIS2/CNT and CuInx(Aly,Ga1-y)1-xS2 compositions were grown and the physical characterization of the thin laxyers were performed. The results showed that adding CNT led to formation of p-n junction. Finally, the preparation and characterization of Cu(Inx,Ga1-x)S2 baxsed solar cell were done to complete the investigation. The prepared solar cells with about 6% efficiency were obtained by using Cu(Inx,Ga1-x)S2 as absorber laxyer. The used ink is commercially available and its composition and solutions can deposit by several technique on different substrates. In current study, the prepared laxyers are free from CuS phase and amorphous carbon which it's a serious problem in most of solution baxsed methods.