Tandem dye-sensitized solar cell for improved power conversion efficiencies

作者：M. Dürr, A. Bamedi, Akio Yasuda, Gabriele Nelles · 发表于：Applied Physics Letters · 年份：2004 · DOI：10.1063/1.1723685 · 被引用次数：197 · 研究领域：TiO2 Photocatalysis and Solar Cells、Advanced Photocatalysis Techniques、Quantum Dots Synthesis And Properties

The power conversion efficiency of dye-sensitized solar cells crucially depends on the ability of the sensitizer to absorb light in a broad range of the solar spectrum. In order to increase this range of absorption, a tandem structure with two different sensitizer dyes in two different compartments of the cell, respectively, was realized. Overall power conversion efficiencies as high as η=10.5% and short circuit current densities of JSC=21.1 mA/cm2 were achieved under air mass 1.5 illumination with red dye and black dye in the upper and lower compartment of the cell, respectively.