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Benzothiadiazole-Based Linear and Star Molecules: Design, Synthesis, and Their Application in Bulk Heterojunction Organic Solar Cells
CAS, Inst Chem, Lab Polymer Phys & Chem, Beijing .
CAS, Inst Chem, Lab Polymer Phys & Chem, Beijing .
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.
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2009 (English)In: CHEMISTRY OF MATERIALS, ISSN 0897-4756, Vol. 21, no 21, 5327-5334 p.Article in journal (Refereed) Published
Abstract [en]

Star molecules have many advantages, such as monodispersity, excellent solubility, and vast structures with different functional groups. A set of four-arm star molecules with benzothiadiazole as the core, oligothiophene its the arm, and triphenylamine its the end group and their linear counterparts were designed and synthesized Organic solar cells (OSCs) fabricated with these star molecules and [6,6]-phenyl C-71 butyric acid methyl ester (PC71BM) by spin-coating from solution demonstrate similar short circuit current density (J(sc)) and fill factor (FF) but larger open circuit voltage (V-oc) in comparison With solar cells fabricated with corresponding linear molecules and PC71BM A power conversion efficiency (PCE) of 18%, with J(sc) = 4.9 mA/cm(2), V-oc = 0 92 V, and FF = 0 41 was achieved with one of these star molecules

Place, publisher, year, edition, pages
2009. Vol. 21, no 21, 5327-5334 p.
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Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-51779DOI: 10.1021/cm902611bOAI: oai:DiVA.org:liu-51779DiVA: diva2:277393
Available from: 2009-11-18 Created: 2009-11-17 Last updated: 2015-05-18

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Li, FenghongZhou, YiFahlman, MatsZhang, Fengling

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