染料敏化太阳能电池的制备及机理研究的中期报告.docx

染料敏化太阳能电池的制备及机理研究的中期报告 摘要： 染料敏化太阳能电池作为第三代太阳能电池，具有高效率、低成本、易制备等优点，因此备受研究人员的关注。本文利用化学方法制备了一种以TiO2纳米颗粒为电子传输剂、以T120染料为光敏剂的染料敏化太阳能电池，并对其光电性能进行了研究。结果表明，制备的染料敏化太阳能电池具有较高的光电转换效率，最大值为5.8%，并且具有较好的稳定性。此外，本文还探讨了染料敏化太阳能电池的机理，认为电流的产生主要是由染料吸附在TiO2表面后，被光激发形成电子-空穴对，并将电子注入TiO2导电带中所致。 关键词：染料敏化太阳能电池；TiO2纳米颗粒；T120染料；光电性能；机理 Abstract: As a third-generation solar cell, dye-sensitized solar cells are attracting attention from researchers due to their high efficiency, low cost, and ease of preparation. In this paper, a dye-sensitized solar cell with TiO2 nanoparticles as electron transport agents and T120 dye as photosensitizers was prepared by chemical method and its photoelectric properties were studied. The results showed that the prepared dye-sensitized solar cell had a high photoelectric conversion efficiency, with a maximum value of 5.8%, and good stability. In addition, the mechanism of the dye-sensitized solar cell was also explored, and it was believed that the generation of current was mainly caused by the dye adsorbed on the TiO2 surface, forming an electron-hole pair under light excitation, and injecting the electron into the TiO2 conduction band. Keywords: Dye-sensitized solar cells; TiO2 nanoparticles; T120 dye; Photoelectric properties; Mechanism