A Robust Organic Dye for Dye Sensitized Solar Cells Based on Iodine/Iodide Electrolytes Combining High Efficiency and Outstanding Stability

• DOI: 10.1038/srep04033
• Publication Date: 2014-02-07T10:07:01Z
• Authors: Damien Joly; Laia Pellejà; Stéphanie Narbey; Frédéric Oswald; Julien Chiron; John N. Clifford; Emilio Palomares; Renaud Demadrille
• Keywords: [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry; [CHIM.ORGA]Chemical Sciences/Organic chemistry; [CHIM.ANAL]Chemical Sciences/Analytical chemistry; [SPI.NRJ]Engineering Sciences [physics]/Electric power; [CHIM]Chemical Sciences; 02 engineering and technology; 0210 nano-technology; 7. Clean energy; Article; 3. Good health; 12. Responsible consumption

Among the new photovoltaic technologies, Dye-Sensitized Solar Cell (DSC) is becoming a realistic approach towards energy markets such as BIPV (Building Integrated PhotoVoltaics). In order to improve performances of DSCs and increase their commercial attractiveness, cheap, colourful, stable highly efficient ruthenium-free dyes must be developed. Here we report synthesis complete characterization purely organic sensitizer (RK1) that can prepared synthetically upscaled rapidly. cells containing this orange dye show power conversion efficiency 10.2% under standard conditions (AM 1.5G, 1000 Wm−2) using iodine/iodide electrolyte redox shuttle in electrolyte, which among few examples DSC an red/ox pair overcome 10% barrier. We demonstrate combination with ionic liquid allows fabrication solar efficiencies up 7.36% are no measurable degradation initial after 2200 h light soaking at 65°C irradiation conditions. RK1 achieves one best output for cell based on combining high outstanding stability.