Performance of colloidal CdS sensitized solar cells with ZnO nanorods/nanoparticles

Anurag Roy, Partha Pratim Das, Mukta Tathavadekar, Sumita Das, Parukuttyamma Sujatha Devi
2017 Beilstein Journal of Nanotechnology  
As an alternative photosensitizer in dye-sensitized solar cells, bovine serum albumin (BSA) (a nonhazardous protein) was used in the synthesis of colloidal CdS nanoparticles (NPs). This system has been employed to replace the commonly used N719 dye molecule. Various nanostructured forms of ZnO, namely, nanorod and nanoparticle-based photoanodes, have been sensitized with colloidal CdS NPs to evaluate their effective performance towards quantum dot sensitized solar cells (QDSSCs). A polysulphide
more » ... (S x 2− )-based electrolyte and Cu x S counter electrode were used for cell fabrication and testing. An interesting improvement in the performance of the device by imposing nanorods as a scattering layer on a particle layer has been observed. As a consequence, a maximum conversion efficiency of 1.06% with an open-circuit voltage (V OC ) of 0.67 V was achieved for the ZnO nanorod/nanoparticle assembled structure.
doi:10.3762/bjnano.8.23 pmid:28243559 pmcid:PMC5301656 fatcat:24imh6mpp5gabgbz7j6wd7w6e4