Effect of [Cu]/[Cu + In] ratio in the solution bath on the growth and physical properties of CuInS2 film using one-step electrodeposition

► CuInS2 samples were deposited on FTO-glass substrates using electrodeposition. ► n-type samples can be obtained with [Cu]/[Cu + In] ratio in solution less than 0.29. ► p-type samples can be obtained with [Cu]/[Cu + In] ratio in solution greater than 0.33. ► Compensated CuInS2 can be obtained in the solution with a [Cu]/[Cu + In] ratio of 0.32.