Synthesis and characterization of CuInS2 quantum dot in the presence of novel precursors and its application in dyes solar cells

CuInS2 (CIS) quantum dots were synthesized via a simple hydrothermal method.CIS were synthesized by employing carminic acid–Cu(II) and thioglycolic acid as the new starting reagents.TGA acts as the capping agent, sulfide source, and reducing agent in order to reduce Cu2+ to Cu+.No secondary chemical reducing agent is required to proceed and complete the reaction.A preliminary study on the possibility of developing a solar cell.

In this work, CuInS2 (CIS) quantum dot was successfully synthesized with the aid of carminic acid–Cu(II) as a novel copper precursor and thioglycolic acid (TGA( as a capping agent, sulfide source, and reducing agent in order to reduce Cu2+ to Cu+ by a hydrothermal method. Carminic acid extracted from cochineal dye to synthesize copper precursor. Furthermore, in order to investigate the effect of different dyes and CIS-QDs on the solar cell yield, several experiments were performed.