| abstract |
The present invention relates to a kind of phenothiazine dye with (D-D-π-A) 3 structure and its preparation method and application, the phenothiazine dye of described (D-D-π-A) 3 structure has formula ( The structure shown in VII), wherein R 1 , R 2 , R 3 , R 4 , P, D and L are defined in the description. The present invention also provides the preparation method of the described thiaphenazine dye with (D-D-π- A ) structure ; Spectral response range and enhance the absorbance intensity of the dye. Compared with the organic photosensitizing dye of single D-D-π-A structure, the dye provided by the invention has a larger molar absorptivity, and the thiaphenazine with (D-D-π- A ) structure described in the present invention Dye is used to prepare dye-sensitized solar cells, which can obtain greater short-circuit current density (Jsc). |