Small band gap polymers based on diketopyrrolopyrrole
New small band gap polymers incorporating diketopyrrolopyrrole units have been synthesized using Suzuki and Yamamoto polymerization. By alternating the electron-deficient diketopyrrolopyrrole units with different electron-rich aromatic segments, polymers were obtained with band gaps ranging from 1.2...
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| Veröffentlicht in: | Journal of materials chemistry 2010-01, Vol.20 (11), p.2240-2246 |
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| container_end_page | 2246 |
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| container_issue | 11 |
| container_start_page | 2240 |
| container_title | Journal of materials chemistry |
| container_volume | 20 |
| creator | Zoombelt, Arjan P. Mathijssen, Simon G. J. Turbiez, Mathieu G. R. Wienk, Martijn M. Janssen, René A. J. |
| description | New small band gap polymers incorporating diketopyrrolopyrrole units have been synthesized using Suzuki and Yamamoto polymerization. By alternating the electron-deficient diketopyrrolopyrrole units with different electron-rich aromatic segments, polymers were obtained with band gaps ranging from 1.24 to 1.77 eV in thin films. In field-effect transistors these polymers exhibit ambipolar charge transport with hole and electron mobilities up to 2.1 x 10(-3)cm(2)/Vs and 1.6 x 10(-4)cm(2)/Vs, respectively. The polymers were applied as electron donor in bulk heterojunction solar cells with [60]PCBM as electron acceptor to give a maximum power conversion efficiency of 1.7% under simulated standard solar light (AM1.5G, 100 mW/cm(2)). The morphology of the bulk heterojunction blend seems to limit the photovoltaic performance. |
| doi_str_mv | 10.1039/b919066j |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0959-9428 |
| ispartof | Journal of materials chemistry, 2010-01, Vol.20 (11), p.2240-2246 |
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| language | eng |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| title | Small band gap polymers based on diketopyrrolopyrrole |
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