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Black Polymers in Bulk-Heterojunction Solar Cells
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
University of Addis Ababa.
Chalmers.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
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2010 (English)In: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, ISSN 1077-260X, Vol. 16, no 6, 1565-1572 p.Article in journal (Refereed) Published
Abstract [en]

The active materials in polymer solar cells have a decisive role on the performance of the cells. Polymers with extended absorption, i.e., black polymers with absorption covering the whole visible region are desired in order to capture the important parts of the solar irradiation. Different ways of achieving black active materials are discussed and two new alternating polyfluorene (APFO) copolymers with broad absorption, APFO-Black 1 and APFO-Black 2, using two different design strategies are described. The UV-Vis absorption spectra of the polymers extend to approximately 850 nm, and the polymers were used as donors and [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM)[60] or PCBM[70] as acceptors in solar cell devices in various mixing ratios. The best combinations yielded an overall power conversion efficiency of 1.2% for APFO-Black 1 and 1.5% for APFO-Black 2.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2010. Vol. 16, no 6, 1565-1572 p.
Keyword [en]
Atomic force microscopy (AFM), charge-carrier mobility, fullerene, photovoltaic cell materials, solar energy
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-67161DOI: 10.1109/JSTQE.2010.2049002ISI: 000288488400008OAI: oai:DiVA.org:liu-67161DiVA: diva2:407797
Available from: 2011-04-01 Created: 2011-04-01 Last updated: 2015-06-01

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Zhou, YiZhang, FenglingInganäs, Olle

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Zhou, YiZhang, FenglingInganäs, Olle
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