Synthesis of Triphenylamine Trisazo Dye and Study of its Uses in Dye Sensitized Solar Cells

A new triazo dye was synthesized from tri(p-aminophenyl)amine and 2 hydroxy-3-napthoic acid and explored the possibilities of its uses in dye sensitized solar cells for the first time. The photocells were able to generate reasonably high photocurrent in the presence of the electron donating ionic liquids in the electrolyte composed of redox couple I₃^-/I^-. Cells fabricated by sensitizing TiO₂ generated a short-circuit photocurrent of ~ 3.5 mA cm^-2, an open-circuit photovoltage of ~ 500 mV with a total power conversion efficiency of ~ 1 % under simulated full sunlight of 100 mW cm^-2 (Air Mass 1.5).  

doi:10.4038/sljp.v6i0.200  

Sri Lankan Journal of Physics, Vol. 6 (2005) 43-50