Photo electrode is an important component of DSSC, so this paper did some research on it. Through the method of adding PEG additive into TiO2 paste, the electrical characteristics and efficienciesof DSSCs with photo electrode surface area were studied. In the case of not adding PEG in TiO2 paste,26 ㎛ thickness TiO2 photo electrode shows 5.081% efficiency. The highest short circuit current densitywas 10.476 mA/cm2. The structure of porous TiO2 film can be controlled through changing the PEGadditive amount in TiO2 paste and the molecular weight of PEG. When the additive amount of PEG20,000 in TiO2 paste reaches 5%, the peak efficiency with 26 ㎛ thickness TiO2 photo electrode was5.387% and its highest current density were 11.084 mA/cm2.

Citations

• Effect of APS Dip-Coating Time on Interfacial Charge Transport in Dye-Sensitized Solar Cells
  Jin Wook Lee, Minjae Shin, Byungyou Hong, Hyung Jin Kim
  Journal of Electrical and Electronic Materials.2026; 39(4): 387.     CrossRef
• Effect of Dye Adsorption Time at Constant Temperature on the Photovoltaic Performance of Dye-Sensitized Solar Cells
  Ba Wi Hwang, Hyung Jin Kim, Byungyou Hong
  Journal of Electrical and Electronic Materials.2026; 39(4): 382.     CrossRef

Photo electrode is an important component for DSSC. DSSCs electrical characteristics and efficiencies fabricated with different TiO2 photo electrodes thickness and modified phoro electrode surface area were studied. 11 ㎛ TiO2 photo electrode shows a 4.956% efficiency. The highest short circuit current density was a 9.949 mA/cm2. Efficiencies and short circuit current density increased as tape casting thickness decreased. Modified surface area of the photo electrode by needle stamp processing were studied. 200 times needle stamp processing on photo electrodes shows a highest 5.168% efficiency. Also the short circuit current density was a 10.261 mA/cm2.