A New Benzodithiophene Based Donor-Acceptor π-Conjugated Polymer for Organic Solar Cells
| Autor: | Um Kanta Aryal, Sung Tae Shin, Sung-Ho Jin, Kakaraparthi Kranthiraja, Thavamani Gokulnath, Durga Gayathri Rajalapati, Hyunjung Jin, Saripally Sudhaker Reddy |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics Organic solar cell Band gap General Chemical Engineering Nanochemistry 02 engineering and technology Conjugated system 010402 general chemistry Photochemistry 01 natural sciences Polymer engineering chemistry.chemical_compound morphology Materials Chemistry organic solar cell benzodithiophene based π-conjugated polymer chemistry.chemical_classification Organic Chemistry Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences octyl side chain Solvent chemistry Chlorobenzene 0210 nano-technology |
| Zdroj: | Reddy, S S, Aryal, U K, Jin, H, Gokulnath, T, Rajalapati, D G, Kranthiraja, K, Shin, S T & Jin, S H 2020, ' A new benzodithiophene based donor-acceptor π-conjugated polymer for organic solar cells ', Macromolecular Research, vol. 28, no. 2, pp. 179-183 . https://doi.org/10.1007/s13233-020-8079-z |
| ISSN: | 2092-7673 1598-5032 |
| Popis: | A new benzodithiophene based donor-acceptor π-conjugated polymer (P1) is designed and explored as the photoactive donor for organic solar cells (OSCs). The synthesized donor polymer, P1 displays a wide absorption profile ranging from 300–750 nm with optical band gap of 1.61 eV and moderate ionization potential of −5.30 eV. It has good solubility in non-halogenated and halogenated organic solvents. Next, we fabricated OSCs with P1 by blending with PC71BM, the pristine polymer processed from chlorobenzene showed PCE of 2.79%. Upon addition of external additive diphenyl ether to the blend showed a dramatic improvement in PCE with maximum of 5.33%. DPE tailored the active layer morphology and showed two times higher PCE than pristine films. These results clearly indicate that the new polymer has a great potentiality for enhancing efficiency upon solvent additives, which will provide new routes for the development of new class of polymers for high-performance air-stable OSCs. [Figure not available: see fulltext.]. |
| Databáze: | OpenAIRE |
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