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Poly(4,8-bis(2-ethylhexyloxy)benzo[1,2-b:4,5-b ]dithiophene vinylene): Synthesis, Optical and Photovoltaic Properties
Chinese Acadamy of Science.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Chinese Acadamy of Science.
Chinese Acadamy of Science.
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2010 (English)In: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, ISSN 0887-624X, Vol. 48, no 8, 1822-1829 p.Article in journal (Refereed) Published
Abstract [en]

A new benzodithiophene (BDT)-based polymer, poly(4,8-bis(2-ethylhexyloxy)benzo[1,2-b:4,5-b]dithiophene vinylene) (PBDTV), was synthesized by Pd-catalyzed Stille-coupling method. The polymer is soluble in common organic solvents and possesses high thermal stability. PBDTV film shows a broad absorption band covering from 350 nm to 618 nm, strong photoluminescence peaked at 545 nm and high hole mobility of 4.84 x 10(-3) cm(2)/Vs. Photovoltaic properties of PBDTV were studied by fabricating the polymer solar cells based on PBDTV as donor and PC70BM as acceptor. With the weight ratio of PBDTV: PC70BM of 1:4 and the active layer thickness of 65 nm, the power conversion efficiency of the device reached 2.63% with V-oc = 0.71 V, I-sc = 6.46 mA/cm(2), and FF = 0.57 under the illumination of AM1.5, 100 mW/cm(2).

Place, publisher, year, edition, pages
John Wiley and Sons, Ltd , 2010. Vol. 48, no 8, 1822-1829 p.
Keyword [en]
conjugated polymers, PC70BM, poly(benzodithiophene vinylene), polymer solar cells, synthesis, UV-Vis spectroscopy
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-56298DOI: 10.1002/pola.23952ISI: 000276976300017OAI: oai:DiVA.org:liu-56298DiVA: diva2:318309
Available from: 2010-05-07 Created: 2010-05-07 Last updated: 2015-05-29

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Zhou, YiZhang, FenglingInganäs, Olle

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Zhou, YiZhang, FenglingInganäs, Olle
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Biomolecular and Organic ElectronicsFaculty of Science & EngineeringThe Institute of Technology
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