Abstract
Monolithic dye-sensitized solar cell (DSSC) is a modification of conventional sandwich DSSC that effectively reduces the production cost because it only uses a single substrate for both of photoelectrode and counter electrode. In this research, monolithic DSSC was prepared on fluorine-doped tin oxide (FTO) glass substrate that contains TiO2 paste layer, ZrO2 layer as spacer and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as conductive layer. To improve the performance of monolithic DSSC, a TiO2 blocking layer was added between FTO and TiO2 layer wherein the blocking layer thickness was varied by changing mesh screen size and printing frequency. The morphology and optical characteristics of the blocking layer was obtained by scanning electron microscopy (SEM) and ultraviolet-visible (UV-Vis) spectroscopy, while the monolithic device performance was analyzed using current-voltage (I-V) measurement. From the results, it was confirmed that the highest performance with photoconversion efficiency of 0.260% was achieved by the monolithic device with the thickest blocking layer.
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