Citation: Qiao Hong YAO, Fu You LI, Lu SHAN, Chun Hui HUANG, Dong Dong YIN. Enhancement of Overall Photovoltaic Efficiency by Changing the Position of the Attaching Group-RSO₃^- on the Hemicyanine Dye Molecules[J]. Chinese Chemical Letters, ;2003, 14(11): 1185-1188. shu

Enhancement of Overall Photovoltaic Efficiency by Changing the Position of the Attaching Group-RSO₃^- on the Hemicyanine Dye Molecules

1.
State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871;
2.
Department of Chemistry, Beijing Normal University, Beijing 100875

Received Date: 14 November 2002

Fund Project: This work was financially supported by the State Key Program of Fundamental Research (G19980 61308, and 2002AA3024030).

A new photoresponsive D-π-A dye, mPS, has been designed and synthesized. Compared to the parent dye PS, IPCE values in the region from 400 nm to 560 nm was greatly improved upon changing the attaching group from the p- position to the o- position of the π-conjugation bridge. A solar cell based on mPS generated a remarkably high overall yield η of 5.4% under irradiation of 80.0 mW cm^-2 white light from a Xe lamp. Compared with PS, the overall yield η increased by 64%.
- D-π-A dye,
- nanocrystalline TiO₂ elctrode,
- photoelectric conversion property
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