| dc.description.abstract | Among the many renewable energy, inexhaustible solar energy is the most attended one. Dye-sensitized solar cells possessing the advantages of low-cost, simple process, multi-color, penetration and flexibility, has become one of the key technology to developed.
The photosensitizer is one of important components which affecting the solar cell efficiency in the dye-sensitized solar cells. Compared to the ruthenium metal complexes based sensitizers, the metal-free organic sensitizers shows following advantages：high molar extinction coefficient, easy for structural modification, low cost and lower environmental pollution, etc., and hence, attracted large of studies.
The sensitizers DD101 representing the D-π-A configuration, in which 2-phenylthiophene as the π-bridge of the dye, were designed and synthesized. Next, we made modification to design the series of sensitizers DD104, DD113 and DD114 to represent the 2D-π-2A configuration, in which 2,2’-(1,3-phenylene)bis-thiophene were incorporated in the π-bridge of the dye. Then, further investigation of various of donors which affect the power conversion efficiency of 2,2’-(1,3-phenylene)bis-thiophene sensitizers are studied to. | en_US |