Dye sensitized solar cell demonstrates an efficient method for the conversion of solar energy to electric energy. We Present the synthesis of N,N′-bis(salicylidene)ethylenediamine and its copper (II) complex, and characterization, and our finding for use as dye sensitizer in the fabrication of dye sensitized solar cell. The dyes were characterized using UV-Vis, Steady State Florescence, and Fluorescence Lifetime, Thermogravimetric analysis, Differential scanning calorimetry, and Cyclic Voltammetry. The thermogravimetric analyses of the ligand and the ligand Copper complex demonstrate the stabilizing effect of the copper ion on the ligand complex. Additionally, the copper ion is shown to stabilize the structure, as evidenced by the 150°C increase in the extrapolated onset temperature of the decomposition event. Furthermore, the bimodal decomposition profile suggests an intermediary phase which is further stabilized by the presence of the copper ion, which determined from the 6% residue analysis that found to be the copper metal. The maximum current obtained for ligand was 0.88 mA/cm2 with an efficiency of 0.14% whereas the maximum current for ligand Cu (II) was 1.2 mA/cm2 with an efficiency of 0.12 %. The result obtained is consistent with the absorption spectra that showed a prominent band for the ligand but a peak of decreased intensity with respect to the ligand Cu(II).

Synthesis and characterization of N, N′-bis(salicylidene) ethylenediamine Copper complex for dye sensitized solar cells

255th National Meeting (2018)

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