Photovoltaic Properties of Dye-Sensitized Solar Cells with Thermal Treated PEDOT:PSS as Counter Electrodes

Abstract

The dye-sensitized solar cell devices using PEDOT:PSS films as counter electrodes have the lower production cost and more simple fabrication process than devices using Pt counter electrode. To enhance the power conversion efficiency of devices, we fabricated DSSC devices using thermal treated poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) as counter electrodes. The power conversion efficiency of DSSC device using a counter electrode based PEDOT:PSS film treated at 45°C for 720 min achieved a value of 3.22%.

Keywords:

• Counter electrode
• dye-sensitized solar cells
• thermal treated PEDOT:PSS

Acknowledgments

This work was supported by the Ministry of Information & Communications, Korea, under the Information Technology Research Center (ITRC) Support Program.

Notes

¹⁾All the devices were measured by solar simulator under illumination at AM 1.5 condition.

²⁾The thickness of PEDOT:PSS films measured by using Alpha-step IQ were about 110 nm.

¹⁾All the devices were measured by solar simulator under illumination at AM 1.5 condition.

²⁾The thicknesses of PEDOT:PSS films were measured by using Alpha-step IQ. All the PEDOT:PSS films were thermally treated at 45°C for 720 min.