نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه پژوهشی مواد رنگزای آلی، پژوهشگاه رنگ، تهران، ایران، صندوقپستی: 654-167654
2 دانشکده فیزیک، دانشگاه صنعتی شاهرود، شاهرود، ایران، صندوقپستی: 316-36155
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Dye-sensitized solar cells (DSSCs) are a new technology for producing sustainable electrical energy. Dyes in this technology play the role of electron generation upon receiving incident light. In this study, an organic dye was prepared using carbazole as the starting material. The hydrogen base of carbazole was replaced with indigo and two acetylamine groups were placed on the phenylcarbazole rings. The chemical structure of the dyes was studied by analytical methods to confirm the chemical structure. The absorption properties of the synthesized dye were investigated in three solvents: ethanol and acetonitrile (polar solvents) and benzene (non-polar solvent). The study of the deposition process and the change in the absorption maximum was conducted in an ethanol solvent and on the surface of titanium dioxide semiconductor. The feasibility of using the dye and the excited electron transfer and hole filling were evaluated by cyclic voltammetry. Finally, the DSSCs were assembled using a platinum counter electrode and iodine redox couple electrolyte. The device efficiency and the excited electron lifetime were found to be about 17.6% and 29.02 milliseconds, respectively.
کلیدواژهها [English]