Abstract

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.

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