A Varied Alkyl Chains of Ruthenium(II) Complexes for Dye Sensitized Solar Cells (DSSCs)

Abstract:

Ruthenium(II) complexes were synthesized and characterized for dye-sensitized solar cells (DSSCs) with varied alkyl chains specifically methyl (PC01), hexyl (PC02) and octyl (PC03). The photophysical property was studied by UV-Visible absorption. The results showed that the main absorption peaks were asigned to the metal to ligand charge transfer (MLCT) transition (350-600 nm). The incident photon to current conversion efficiency (IPCE) covered the entire visible spectrum reaching to 18-20% at 520 nm. The DSSC performances were investigated with liquid iodide/tri-iodide electrolyte under standard AM 1.5. PC01-PC03 showed that the power conversion efficiency (h) were obtained at 3.08%, 3.18% and 3.14%, respectively, compared with N719 (7.80%). Interestingly, PC02 and PC03 showed the long term stability with %h_loss better than the standard up to 1000 h.

• Periodical: Defect and Diffusion Forum (Volume 382)
• Pages: 359-363
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.382.359
• Online since: January 2018
• Authors: Chonchanok Talodthaisong, Kittiya Wongkhan, Rukkiat Jitchati*
• Keywords: Dye Sensitized Solar Cell (DSSC), Ruthenium(II) Complex, Stability

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