| 초록 |
dye-sensitized solar cells have been attracted great attention due to its low cost and ease of fabrication. Recently, metal-free organic dyes as alternative sensitizers have attracted considerable attention because of their potential advantages, such as control of the structure of organic compounds, the use of inexpensive and environmentally benign resources, high molar extinction coefficient, and facile synthesis. More and more efforts have been dedicated to development of metal-free organic dyes which exhibit not only higher molar extinction coefficients, but also simple preparation and purification procedures at lower cost. In this investigation, we have developed novel organic dyes in which two different donor with different electron donation ability attached on ullazine core applied on DSSCs. The optical, electrochemical, and photovoltaic performance of DSSC composed of these organic chromophores were measured and evaluated by comparison with that of standard ruthenium dye N719. |
