Synthesis of TiO₂ NRs - ZnO Composite for Dye Sensitized Solar Cell Photoanodes

Evaluation of performance characteristics of nano TiO2and TiO2-ZnO composite for DSSC applications and electrochemical determination of potassium ferrocyanide using cyclic voltammetry

“…However, the power conversion efficiency is greater than the figures presented by Susanti [21], which could be due to the incorporation of organic dye for DSSC applications by Susanti et al [21]. The present research work's efficiency values are greater than the results presented by Giannouli et al [19] and Wahyuningsih et al [20] for the DSSC devised with nano TiO 2, but a reduction in efficiency was observed for the TiO 2 -ZnO composite based DSSC. The variation in efficiency values could be owing to the specific surface area of the synthesized nanostructures, amorphous nature, and agglomeration of particles of TiO 2 -ZnO, which might have led to poor loading of the dye and greater resistance for the electron mobility across the photoanode film [9] resulting in poor efficiency compared to the DSSC devised with pure crystalline TiO 2 .…”

“…The short circuit current density, J SC of the nano TiO 2 and TiO 2 -ZnO composite based DSSCs were determined as 4.152 and 0.014 mA cm −2 , respectively. The density of short circuit current for the present work is lower compared to the data reported by Chung [9], Govindaraj [22], Rajamanickam [23]; but greater compared to the results presented by Wahyuningsih [20] and Susanti [21]. Wahyuningsih [20] and his team utilized Table 1.…”

“…The density of short circuit current for the present work is lower compared to the data reported by Chung [9], Govindaraj [22], Rajamanickam [23]; but greater compared to the results presented by Wahyuningsih [20] and Susanti [21]. Wahyuningsih [20] and his team utilized Table 1. Specific surface area, pore diameter and pore volume of TiO 2 nanoparticles and TiO 2 -ZnO composite.…”