Synthesis of core-shell metallic nano-complex from hybrid dye/MWCNTs in dye-sensitized solar cell

Functional modeling involves using computational methods to simulate and optimize the materials and processes to identify the best combinations of dyes, semiconductors, and electrolytes and improve the overall efficiency of DSSCs (dye-sensitized solar cells). Sensitizing dyes are the main components of DSSCs that can enhance their efficiency and photo response level. This study evaluated two new metal complexes (Zinc and Nickel) with a hybrid dye and carbon nanotube derivative from ۲,۲-bipyridine-۴,۴-dicarboxylic acid for dye-sensitized solar cells (DSSCs). The resulting products were characterized using Raman spectroscopy, NMR, EDX, FTIR, SEM, UV, TEM, TGA, and ellipsometry. The proposed DSSCs based on multi-walled carbon nanotubes were designed and modeled using COMSOL Multiphysics software. For this purpose, the refractive index of the solar cell complexes was determined using ellipsometric spectroscopy. This shows both complexes' unique and high refractive index, reaching ۲.۱۳ at ۴۷۵ nm. The current-voltage curve and electrical parameters of the structure were calculated using COMSOL software. These DSSCs achieved ۸.۷ % of ŋ (Jsc ۱۴.۶ mA cm², Voc= ۰.۸۵ V and FF=۷۱%) under simulated solar irradiation. According to the Gaussian calculation for metallic nano-complex, the AG is ۱.۱۷×۱۰-۱۷ and -۲.۲۵×۱۰-۱۷ for Ni and Zn complexes, respectively. So, these complexes can be considered potential candidates for use in a new generation of dye-sensitized solar cells instead of rare-earth-heavy metal-based dyes in DSSCs.

کلیدواژه ها:

Dye-sensitized solar cell ، Current-voltage ، COMSOL ، Metal complex ، MWCNTs hybrid