Properties of working electrodes with polystyrene beads addition in dye sensitized solar cells

Yunyoung Noh, Minkyoung Choi, Ohsung Song

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


We prepared the TiO2 layer with 0 ∼ 4 wt% of polystyrene (PS) beads having a radius of 250 nm to increase the dye adsorption and energy conversion efficiency (ECE) of a dye sensitized solar cell (DSSC). Then, we fabricated DSSCs using 0.45 cm2 active area. FE-SEM was used to characterize the microstructure consisting of TiO2 layer and PS beads. UV-VIS-NIR was used to determine the optical absorbance of working electrodes (WEs). Solar simulator and potentiostat were used to determine the photovoltaic properties. We observed that pores having a radius of 250 nm were formed with the density of 0.15 ea/μm2 in TiO2 layers after conducting the sintering process. The absorbance in visible light regime was found to increase with the increase in the amount of PS beads. The ECE increased from 4.66% to 5.25% when the amount of PS beads was increased from 0 to 4 wt%. This is because the pores of PS beads increased the adsorption of dye. Our results indicate that the ECE of the DSSCs can be enhanced by the addition of an appropriate amount of PS beads into TiO2 layers.

Original languageEnglish
Pages (from-to)380-383
Number of pages4
JournalJournal of the Korean Ceramic Society
Issue number5
StatePublished - Sep 2015


  • Dye sensitized solar cells
  • Energy conversion efficiency
  • Polystyrene bead
  • TiO


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