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Benzodifuran-Based ?-Conjugated Copolymers for Bulk Heterojunction Solar Cells

Li, Hui and Jiang, Peng and Yi, Chenyi and Li, Chen and Liu, Shi-Xia and Tan, Songting and Zhao, Bin and Braun, Jörg and Meier, Wolfgang and Wandlowski, Thomas and Decurtins, Silvio. (2010) Benzodifuran-Based ?-Conjugated Copolymers for Bulk Heterojunction Solar Cells. Macromolecules, Vol. 43, H. 19. pp. 8058-8062.

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Official URL: http://edoc.unibas.ch/dok/A5841677

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Abstract

Novel ?-conjugated copolymers based on a sol. electroactive benzo[1,2-b:4,5-b']difuran (BDF) chromophore have been synthesized by the introduction of thiophene/benzo[c][1,2,5]thiadiazole/9-phenylcarbazole comonomer units. These copolymers cover broad absorption ranges (250-700 nm) with narrow optical band gaps of 1.71-2.01 eV. Moreover, their band gaps as well as their mol. electronic energy levels are readily tuned by copolymg. the BDF core with different ?-conjugated electron-donating or withdrawing units in different ratios. Bulk heterojunction solar cell devices are fabricated using the copolymers as the electron donor and PCBM ([6,6]-phenyl-C61-butyric acid Me ester) as the electron acceptor. Preliminary research has revealed power conversion efficiencies of 0.17-0.59% under AM 1.5 illumination (100 mW/cm2). [on SciFinder(R)]
Faculties and Departments:05 Faculty of Science > Departement Chemie
05 Faculty of Science > Departement Chemie > Chemie > Makromolekulare Chemie (Meier)
UniBasel Contributors:Meier, Wolfgang P.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Chemical Soc.
ISSN:0024-9297
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 Sep 2012 07:19
Deposited On:14 Sep 2012 06:59

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