6533b831fe1ef96bd1298337
RESEARCH PRODUCT
Synthesis and characterization of zinc carboxy–porphyrin complexes for dye sensitized solar cells
Clément MichelinSubhayan BiswasLéo BucherClaude P. GrosCharles H. DevillersAthanassios G. CoutsolelosGanesh D. SharmaNicolas Desboissubject
Energy conversion efficiencyPhotovoltaic systemchemistry.chemical_element02 engineering and technologyGeneral ChemistryZinc010402 general chemistry021001 nanoscience & nanotechnologyElectrochemistryPhotochemistry01 natural sciencesPorphyrinElectron transport chainCatalysis0104 chemical sciencesDye-sensitized solar cellchemistry.chemical_compoundchemistryElectrodeMaterials Chemistry0210 nano-technologydescription
Two zinc porphyrins, 2 and 8, have been synthesized. Porphyrin 8 displays better electronic communication between the dye and the TiO2 electrode. Photophysical measurements and electrochemistry experiments suggest that both porphyrins are very promising sensitizers for dye-sensitized solar cells (DSSCs). It was found that their molecular orbital energy levels favor electron injection and dye regeneration in DSSCs. Solar cells sensitized by 2 and 8 were fabricated, and it was found that they show power conversion efficiencies (PCEs) of 5.27% and 7.13%, respectively. Photovoltaic measurements (J–V curves) together with the incident photon-to-electron conversion efficiency spectra of the two cells reveal that the higher PCE value of the DSSC based on 8 is ascribed to the higher short-circuit current (Jsc), open-circuit voltage (Voc), and dye loading values. Moreover, the larger charge recombination resistance, longer electron lifetime and shorter electron transport time for 8 also confirm the higher value of the Voc and the Jsc and the FF for the DSSC based on 8.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-01 | New Journal of Chemistry |