Chalcogen Bridged Thieno- and Selenopheno[2,3-d:5,4-d′]bisthiazole and Their Diketopyrrolopyrrole Based Low-Bandgap Copolymers
| Autor: | Martin Heeney, Jaehyuk Lee, Lei Fang, Hassan S. Bazzi, Myung-Han Yoon, Anjaneyulu Putta, Dhananjaya Patra, Somnath Dey, Mohammed Al-Hashimi, Thomas McCarthy-Ward, Alexander J. Kalin, Jongbok Lee, Zhuping Fei |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Polymers and Plastics Band gap Organic Chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Stille reaction Inorganic Chemistry chemistry.chemical_compound Crystallography Chalcogen Crystallinity chemistry Materials Chemistry Thiophene Copolymer Thermal stability 0210 nano-technology Palladium |
| Zdroj: | Macromolecules. 51:6076-6084 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/acs.macromol.8b00826 |
| Popis: | We report the synthesis and characterization of four novel small bandgap copolymers incorporating the electron-deficient thieno[2,3-d:5,4-d′]bisthiazole and selenopheno[2,3-d:5,4-d′]bisthiazole building blocks with a series of electron-deficient diketopyrrolopyrole units. The four resultant copolymers were synthesized via palladium Stille cross-coupling reaction, and their optical, thermal stability, electrochemical, and field-effect charge transport properties were investigated. All copolymers showed low optical bandgaps (1.53–1.56 eV); in addition, X-ray diffraction on solution-cast films revealed that the selenium-containing copolymers exhibit higher crystallinity compared to their thiophene counterparts. |
| Databáze: | OpenAIRE |
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