Indacenodithiophene-co-benzothiadiazole Copolymers for High Performance Solar Cells or Transistors via Alkyl Chain Optimization
| Autor: | Thomas D. Anthopoulos, Hugo Bronstein, Weimin Zhang, R. W. Hamilton, Paul Henrich Woebkenberg, Iain McCulloch, Raja Shahid Ashraf, Simon King, John C. de Mello, Martin Heeney, Dong Seok Leem |
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| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Organic Chemistry 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 7. Clean energy 0104 chemical sciences law.invention Inorganic Chemistry Crystallinity chemistry PEDOT:PSS Chemical engineering law Polymer chemistry Solar cell Materials Chemistry Copolymer Side chain Thin film 0210 nano-technology Alkyl |
| Zdroj: | Macromolecules. 44:6649-6652 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma201158d |
| Popis: | A study was conducted to prepare indacenodithiophene-co-benzothiadiazole copolymers ((IDT-BT) for high performance solar cells or transistors via alkyl chain optimization. The synthesis and high hole mobility of an IDT-BT copolymer with hexadecyl alkyl chains was demonstrated. The long linear alkyl chains were attributed to impart some degree of crystallinity in thin film. The high performance of a similar IDT-BT copolymer bearing phenylhexyl side chains in solar cell devices was also investigated. Replacement of benzothiadiazole on this system with alternative acceptors yielded efficient solar cells. Solar cells with device structure ITO/PEDOT:PSS/polymer P4:PC 71 BM/Ca/Al were fabricated and their averaged properties were shown. AFM images of the devices were also recorded to probe the underlying cause of this significant variation in device performance. |
| Databáze: | OpenAIRE |
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