Flexible Fiber-Shaped Dye Sensitized Solar Cell Using CNT/PANI Incorporated TiO₂

This research investigates the use of Carbon Nanotube (CNT) with a polyaniline (PANI) layer as a working electrode in three-dimensional (3D) dye-sensitized solar cells (DSSCs), incorporated into a hybrid CuInS₂ quantum dot system to enhance overall performance. The CNT-PANI fiber is followed by the incorporation of TiO₂ and the dye N719. The CNT-PANI film is sandwiched between two layers of TiO₂, with the upper layer sensitized by the N719 dye to improve light absorption and facilitate electron injection. CuInS₂ quantum dots are introduced as co-sensitizers to further enhance electron transfer efficiency. The counter electrode is based on Pt/Carbon nanocomposite yarn wrapped around the hole-transporting layer and serves as the counter electrode, while the electrolyte, consisting of a PVDF-HFP polymer gel, ensures effective ionic conductivity. This study presents platinized CNTs as a promising material for future photovoltaic applications. The morphology of the resulting TiO₂ and CNT-PANI will be characterized using transmission electron microscopy (TEM) and scanning electron microscopy (SEM), and their performance will be evaluated through current density-voltage (J-V) measurements. The results demonstrate a significant improvement in flexible solar cells, making them promising candidates for next-generation solar cell applications.