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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2770

Title: Synthesis and characterization of a poly(1,3-dithienylisothianaphthene) derivative for bulk heterojunction photovoltaic cells
Authors: VANGENEUGDEN, Dirk
VANDERZANDE, Dirk
Salbeck, J
van Hal, PA
Janssen, RAJ
Hummelen, JC
Brabec, CJ
Shaheen, SE
Sariciftci, NS
Issue Date: 2001
Publisher: AMER CHEMICAL SOC
Citation: JOURNAL OF PHYSICAL CHEMISTRY B, 105(45). p. 11106-11113
Abstract: The synthesis of a poly(1,3-dithienylisothianaphthene) (PDTITN) derivative obtained via oxidative polymerization of 5,6-dichloro-1,2-bis(3'-dodecylthienyl)isothianaphthene is described. PDTITN exhibits a band gap of 1.80-1.85 eV. The redox properties of PDTITN were characterized using cyclic voltammetry and spectroelectrochemisty. Photoexcitation of PDTITN results in photoluminescence (PL) in the near-IR region and the formation of a triplet state. In the presence of a methanofullerene (PCBM) as an electron acceptor, PL and triplet formation of PDTITN are quenched. In photovoltaic devices using blends of the polymer with PCBM, the observed incident-photon-to-collected-electron efficiency (IPCE) up to 24% at 400 nm and the 3 orders of magnitude increase of short circuit current as compared to the polymer alone prove the photoactivity of the PDTITN/PCBM blend in the device.
Notes: Eindhoven Univ Technol, Lab Macromol & Organ Chem, NL-5600 MB Eindhoven, Netherlands. Univ Groningen, Stratingh Inst, NL-9747 AG Groningen, Netherlands. Univ Groningen, MSC, NL-9747 AG Groningen, Netherlands. Johannes Kepler Univ, Linz Inst Organ Solar Cells, LIOS, A-4040 Linz, Austria. Univ Limburg, Div Chem, Inst Mat Res, Lab Organ & Polymer Chem, B-3590 Diepenbeek, Belgium. Gerhard Mercator Univ, FB 6 Chem Geog Electrochem & Optoelect Mat, D-47048 Duisburg, Germany.Janssen, RAJ, Eindhoven Univ Technol, Lab Macromol & Organ Chem, POB 513, NL-5600 MB Eindhoven, Netherlands.
URI: http://hdl.handle.net/1942/2770
DOI: 10.1021/jp013073t
ISI #: 000172206300009
ISSN: 1089-5647
Category: A1
Type: Journal Contribution
Validation: ecoom, 2002
Appears in Collections: Research publications

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