Performance Characteristics of Bifacial Dye-Sensitized Solar Cells with a V-Shaped Low-Concentrating Light System

Dye-sensitized solar cells (DSSCs) are attractive due to their simple fabrication process, low cost, performance stability, and eco-friendly characteristics. The power output (Pout) can be improved by applying an external concentrator, but this is rarely applied because of increasing temperature. Here, we successfully increased the Pout of bifacial DSSCs with the V-shaped plane, and concave mirrors showed an improved power output (Pout: 6.42 and 24.31 mW/cm2, separately) compared to ones without mirrors (4.25 mW/cm2). The high surface temperature on the concave mirror can be reduced with 1 cm mirror distancing followed by a reduction in Pout (19.07 mW/cm2). © 2021 American Chemical Society.