Promising efficiency enhancement in cobalt redox couple-based back-illuminated dye-sensitized solar cells with titanium foil substrate
| Autor: | In Hwan Lee, Lee Woon Jang, Jong Hyeok Park, Ju Mi Kim, Man Gu Kang, Dae-Woo Jeon, Jeum Jong Kim, Myoung Kim, Jeong Hun Yoon, Ho Gyeong Yun |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Energy conversion efficiency Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Substrate (electronics) Electrolyte Redox Blocking layer Dye-sensitized solar cell chemistry Chemical engineering Titanium foil Electrical and Electronic Engineering Physical and Theoretical Chemistry Cobalt |
| Zdroj: | Journal of Power Sources. 278:32-37 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2014.12.057 |
| Popis: | We demonstrate that a [Co(bpy) 3 ] 2+/3+ (PF 6 ) 2/3 redox couple is an effective strategy for cost-effective and highly efficient dye-sensitized solar cells (DSSCs). Their high transmittance and large complex size make cobalt redox couples advantageous in back-illuminated devices. Furthermore, the use of thin TiO 2 films, together with the naturally formed blocking layer at the outermost surface of Ti substrate, effectively alleviate the drawbacks of cobalt electrolyte. By virtue of these simultaneous effects, we achieve a highly promising power conversion efficiency of 7.12%. |
| Databáze: | OpenAIRE |
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