We report a solid-state-dye-sensitized solar cell with an efficiency of 4% over the standard air mass 1.5 spectrum . This was made possible by using an amphiphilic dye with hydrophobic spacers. We attribute the performance to the self-assembly of the dye to a dense layer on the surface with its carboxylate groups as anchors and with its hydrophobic isolating chains as blocking layer between hole conductor and . In addition we studied the dependence of the thickness of the nanoporous layer and the device performance. These results show the high potential for solid-state-dye-sensitized solar cells to compete with amorphous silicon cells as low-cost alternative.
Efficiency improvement in solid-state-dye-sensitized photovoltaics with an amphiphilic Ruthenium-dye
Lukas Schmidt-Mende, Shaik M. Zakeeruddin, Michael Grätzel; Efficiency improvement in solid-state-dye-sensitized photovoltaics with an amphiphilic Ruthenium-dye. Appl. Phys. Lett. 3 January 2005; 86 (1): 013504. https://doi.org/10.1063/1.1844032
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