ENHANCED EFFICIENCY IN SWIFT 100 MeV Ni ION IRRADIATED ZnS QUANTUM DOT SENSITIZED SOLAR CELL

The influence of high energy ion beam (swift heavy ion) on ZnS quantum dots used as a sensitizer in a solar cell, is studied in this article. 100MeV Nickel (Ni7+) ion beam is utilized for the irradiation experiment with two doses of 1×1011 ions/cm2 and 2×1011 ions/cm2 . The irradiated quantum dots are deposited as a sensitizing layer on a ZnO photoelectrode solar cell, and Current-density v/s Voltage characteristics is measured under illuminated condition. A higher value of current density is obtained for irradiated samples at a lower dose, while at a higher dose, the current density decreases. In addition, the other solar cell performance parameters are also reported for unirradiated, as well as irradiated quantum dot sensitized solar cells.