Proceedings of the Korean Institute of Surface Engineering Conference (한국표면공학회:학술대회논문집)
- 2012.05a
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- Pages.229-230
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- 2012
Platinum and carbon nano tube addition in carbon black counter electrode for dye-sensitized solar cells
- Lee, Su Young (School of Energy, Materials & Chemical Engineering, Korea University. of Technology and Education) ;
- Kim, Sang Ho (School of Energy, Materials & Chemical Engineering, Korea University. of Technology and Education)
- Published : 2012.05.31
Abstract
Platinum (Pt) has been commonly used as a counter electrode material in dye-sensitized solar cells, because it has high catalytic activity and electric conductivity as well as chemical inertness with iodide electrolyte. However, Pt is too expensive to be commercialized. Therefore, in the present study, carbon black counter electrode with Pt and carbon nano tube (CNT) was investigated. The power conversion efficiency with Pt added carbon black electrode was lower than hat of pure Pt electrode which was 6.47 %. By adding 3 wt% Pt to the carbon black counter electrode, the power conversion efficiency was maximized at 5.88 %. On them, additional adding of 1 wt % CNT, the power conversion efficiency (
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