Novel heteroleptic ruthenium sensitizers containing carbazole linked 4,5-diazafluorene ligand for dye sensitized solar cells

Add time:08/13/2019    Source:sciencedirect.com

Two novel heteroleptic ruthenium (II) sensitizers S1 and S2 containing an ancillary ligand 9,9-bis(9-ethylcarbazol-3-yl)-4,5-diazafluorene and 9,9-bis(9-phenylcarbazol-3-yl)-4,5-diazafluorene respectively, have been synthesized and characterized by 1H NMR, UV–Vis absorption spectroscopy, mass spectrometry, elemental analysis and cyclic voltammetry, and used as sensitizers in dye sensitized solar cells. The results show that for the two ruthenium sensitizers, the introduction of carbazole via sp3 hybridized C9 atom of the 4,5-diazafluorene unit produces significant changes in their optical absorption spectra and subsequently alters the intra-molecular charge transfer processes that influence the photovoltaic performance of the solar cell device. The power conversion efficiency of dye sensitized solar cells fabricated using sensitizers S1 and S2 are 0.36% and 0.42% respectively, while N719 exhibits 3.6% under the same device fabrication and measuring conditions.

We also recommend Trading Suppliers and Manufacturers of ruthenium tetrachloride (cas 13465-52-6). Pls Click Website Link as below: cas 13465-52-6 suppliers

Prev:Anticancer activity of heterodinuclear ruthenium(II)–platinum(II) complexes as photochemotherapeutic agents
Next:Synthesis of dry SmCl3 from Sm2O3 revisited. Implications for the encapsulation of samarium compounds into carbon nanotubes)