Performance analysis of flexible DSSC with binder addition

Flexible DSSC is one of modification of DSSC based on its substrate. Operating at low temperature, flexible DSSC requires a binder to improve particles interconnection. This research was done to compare the morphology and performance of flexible DSSC that was produced with binder-added and binder-free. TiO₂ powder, butanol, and HCl were mixed for preparation of TiO₂ paste. Small amount of titanium isopropoxide as binder was added into the mixture. TiO₂ paste was deposited on ITO-PET plastic substrate with area of 1x1 cm² by doctor blade method. Furthermore, SEM, XRD, and BET characterization were done to analyze morphology and surface area of the TiO₂ photoelectrode microstructures. Dyed TiO₂ photoelectrode and platinum counter electrode were assembled and injected by electrolyte. In the last process, flexible DSSCs were illuminated by sun simulator to do J-V measurement. As a result, flexible DSSC containing binder showed higher performance with photoconversion efficiency of 0.31%.