ITO-free inverted polymer solar cell on metal substrate with top-illumination
| Autor: | Sheng-Fu Horng, Chia Ying Tsai, Huang-Ming Chen, En-Chen Chen, Zheng Yu Huang, Hsiao-Wen Zan, Pei Ting Tsai, Jung Hao Chang, Hsin-Fei Meng, Hao-Wu Lin |
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| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Materials science Mechanical Engineering Alloy Energy conversion efficiency Metals and Alloys Oxide Polymer engineering.material Condensed Matter Physics Polymer solar cell Electronic Optical and Magnetic Materials Active layer chemistry.chemical_compound chemistry Mechanics of Materials Electrode Materials Chemistry engineering Metal substrate Composite material |
| Zdroj: | Synthetic Metals. 187:172-177 |
| ISSN: | 0379-6779 |
| DOI: | 10.1016/j.synthmet.2013.10.023 |
| Popis: | High-performance polymer solar cells are conventionally fabricated on the rigid and costly indium-tin-oxide (ITO) glass substrates, which are incompatible with the roll-to-roll process with low cost. This study shows that polymer solar cells can be made on ITO-free flexible stainless steel with only a moderate compromise in power conversion efficiency. A blend of poly (3-hexylthiophene) (P3HT) and (6,6)-phenyl-C61-butyric acid methyl ester (PCBM) was used as the active material for the inverted structure. The bottom electrode was an alloy of Al and Au spontaneously formed from a bi-layer during thermal annealing of the active layer. This alloy had a low work function of 3.9 eV, and a high resistance to oxide formation throughout the entire process. Semi-transparent Ag was used as the top electrode. These solar cells on stainless steel had an efficiency of 2.6%. The majority of the loss came from the top electrode transmission at approximately 60%. This all-metal approach makes roll-to-roll polymer cell fabrication possible. |
| Databáze: | OpenAIRE |
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