We deposited the CZTS absorber layer using RF magnetron sputtering, I obtained a kesterite (112) CZTS phase, after confirming it we went on to fabricate a solar cell. After depositing the other layers, the resistance between the p-type layer and the n-type layer was studied and it was around 4.4 k ohm and the voltage was 0.16 mV. The Voc was very low, any suggestions on how to improve the Voc ?