Influence of Redox Couple on the Performance of ZnO Dye Solar Cells and Minimodules with Benzothiadiazole-Based Photosensitizers.

ABSTRACT: ZnO-based dye-sensitized solar cells exhibit lower efficiencies than TiO₂-based systems despite advantageous charge transport dynamics and versatility in terms of synthesis methods, which can be primarily ascribed to compatibility issues of ZnO with the dyes and the redox couples originally optimized for TiO₂. We evaluate the performance of solar cells based on ZnO nanomaterial prepared by microwave-assisted solvothermal synthesis, using three fully organic benzothiadiazole-based dyes YKP-88, YKP-137, and MG-207, and alternative electrolyte solutions with the I^-/I₃ ^-, Co(bpy)₃ ^2+/3+, and Cu(dmp)₂ ^1+/2+ redox couples. The best cell performance is achieved for the dye-redox couple combination Y

SUBMITTER: Gonzalez-Flores CA 

PROVIDER: S-EPMC9709824 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature