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Benzothiadiazole-Based Linear and Star Molecules : Design, Synthesis, and Their Application in Bulk Heterojunction Organic Solar Cells
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- Li, Weiwei (author)
- CAS, Inst Chem, Lab Polymer Phys & Chem, Beijing
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- Du, Chun (author)
- CAS, Inst Chem, Lab Polymer Phys & Chem, Beijing
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- Li, Fenghong (author)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
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- (creator_code:org_t)
- 2009-10-12
- 2009
- English.
- In: CHEMISTRY OF MATERIALS. - : American Chemical Society (ACS). - 0897-4756 .- 1520-5002. ; 21:21, s. 5327-5334
- Journal article (peer-reviewed)
Abstract
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- 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
Keyword
- NATURAL SCIENCES
- NATURVETENSKAP
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- art (subject category)
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- Li, Weiwei
- Du, Chun
- Li, Fenghong
- Zhou, Yi
- Fahlman, Mats
- Bo, Zhishan
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- Zhang, Fengling
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