Abstract
Dye-sensitized solar cell (DSSC) is getting much attention in recent years due to its low-cost fabrication feature. DSSC mimics the natural photosynthesis process that converts solar energy into electricity. To be adopted in IoT devices, DSSC needs to be flexible and versatile. In this work, flexible DSSC was fabricated from binder-free TiO2 paste. The ratios of TiO2 powder to alcohol precursor were varied. The aim was to investigate the optimum amount of TiO2 powder to ethanol and the effect of different alcohol used as precursor. Hydrochloric acid was added in the TiO2 paste in order to improve the connectivity of the particles. The corresponding mechanical integrity of the as-prepared film was studied as well. From the result, the optimum conversion efficiency achieved in this work was 2.12% where the film had a ratio of TiO2 powder to ethanol of 25 wt%.
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