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- W2056743977 abstract "Abstract A series of new triarylamine‐based platinum‐acetylide complexes ( WY s) have been designed and synthesized as new sensitizers for applications in dye‐sensitized solar cells (DSSCs). With the aim of investigating the effect of a rigidifying donor structure on the photoelectrical parameters of the corresponding DSSCs, two new sensitizers, WY1 and WY2 , with rigid and coplanar fluorene units as an electron donor, were prepared. Moreover, two sensitizers that contained triphenylamine units as an electron donor, WY3 and WY4 , were also synthesized for comparison. The photo‐ and electrochemical properties of all of these new complexes have been extensively explored. We found that the dimethyl‐fluorene unit exhibited a stronger electron‐donating ability and better photovoltaic performance compared to the triphenylamine unit, owing to its rigidifying structure, which restricted the rotation of σ bonds, thus increasing the conjugation efficiency. Furthermore, WY2 , which contained a dimethyl‐fluorene unit as an electron donor and bithiophene as a π bridge, showed a relatively high open‐circuit voltage ( V oc ) of 640 mV and a PCE of 4.09 %. This work has not only expanded the choice of platinum‐acetylide sensitizers, but also demonstrates the advantages of restricted rotation of donor σ bonds for improved behavior of the corresponding DSSCs." @default.
- W2056743977 created "2016-06-24" @default.
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- W2056743977 date "2013-07-04" @default.
- W2056743977 modified "2023-10-17" @default.
- W2056743977 title "Restricted Rotation of σ‐Bonds through a Rigidified Donor Structure to Increase the ICT Ability of Platinum‐Acetylide‐Based DSSCs" @default.
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- W2056743977 doi "https://doi.org/10.1002/asia.201300578" @default.
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