A new series of N-heterocyclic carbene (NHC)-pyridine ruthenium complexes incorporating a carbene unit as an ancillary ligand were designed and successfully synthesized by using simple synthetic methods. The photophysical, electrochemical and photovoltaic properties of these NHC-pyridine based ruthenium complexes were investigated. These complexes showed photoelectric conversion efficiencies in the range of 6.43 ∼ 7.24% under the illumination of AM 1.5 (100 mW cm-2). Interestingly, the modifications on the ancillary ligand of these sensitizers by removal of an alkoxyl group and replacement of the octyl chain with a 3,5-difluorobenzyl group showed a 13% increase in the conversion efficiency for the CifPR dye. These results demonstrated that structural modifications on the NHC-pyridine ancillary ligand of ruthenium complexes results in dye-sensitized solar cells exhibiting a comparable cell performance to that obtained using the standard N719 dye.
指紋深入研究「Carbene-based ruthenium photosensitizers」主題。共同形成了獨特的指紋。
Tingare, Y. S. (貢獻者), Su, C. (貢獻者), Shie, J. (貢獻者), Chen, H. (貢獻者), Li, T. (貢獻者), Chang, W. (貢獻者), Hsu, N. (貢獻者), Li, C. (貢獻者) & Li, W. (貢獻者), The Cambridge Structural Database, 7 7月 2011