Syntheses and Properties of Conjugated Polymer with Thiophene-Bridged BTI and Indenoindene Units for Organic Solar Cells
| Autor: | Joo Young Shim, Juae Kim, Taehyo Kim, Il Kim, Shin Hyun Kim, Hongsuk Suh, Jin Young Kim, Jihoon Lee |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Materials science Organic solar cell 02 engineering and technology General Chemistry Polymer Conjugated system 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Polymer solar cell 0104 chemical sciences chemistry.chemical_compound chemistry Polymerization Thiophene Moiety 0210 nano-technology HOMO/LUMO |
| Zdroj: | Bulletin of the Korean Chemical Society. 37:506-514 |
| ISSN: | 1229-5949 |
| Popis: | We report the new conjugated polymers using dihydroindeno[2,1-a]indene moiety (ININE), electron-pushing unit with high planarity, for the organic solar cells (OSCs). Pull–push mode of conjugated polymers, P1 and P2 , containing electron pulling unit of N-alkyl-2,2′-bithiophene-3,3′-dicarboximide (BTI) and electron-pushing unit of ININE were synthesized for the broader absorption of the solar radiation. By incorporation of electron pulling and pushing units using Stille polymerization with catalyst of Pd(0), the polymers were synthesized. Absorption peaks of the thin films of P2 , with thiophene unit linking the electron-pulling and pushing units, was shifted to the region of longer wavelength than P1 . Two synthesized polymers provided deep energy levels of highest occupied molecular orbital between −5.76 and −5.59 eV and suitable energy levels of lowest unoccupied molecular orbital between −3.65 and −3.55 eV. |
| Databáze: | OpenAIRE |
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