A heuristic proposition of efficient copper-electrodeposited p-type thin film for CZTS solar cell

This paper represents a copper deposition on copper substrate using potentiostatic method. Here, deposited copper is p-type thin film where the solution can be of various salts such as Na
2
SO
4
.10H
2
O, NaHCO
³
, and KNO3. For this research, the chosen solution was CuSO4.5H2O is used. P-type copper is deposited in different parameters which were changed several times to get good quality deposition on Cu cathode. The changeable parameters that have been introduced in this paper are temperature control by heating, time, potential difference, concentration of CuSO4 solution. The parameters that has been taken as constant are current density, frequency etc. From this deposited copper substrate, the morphological operations that have been done are SEM, EDS, X-ray diffraction (XRD), UV-Vis spectrometry. For these lab works chosen samples concentration was 0.2M CuSO4, temperature was 65 degree Celsius. Potential was −0.55V where time was 40 minutes. Different types of microstructures and graphs were observed in results of these lab works. With the help of these results, the photo-chemical behavior of the deposited p-type copper film has been observed which can be used in developing more efficient solar cells with photovoltaic effects.