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Morphology in Dip-Coated Blend Films for Photovoltaics Studied by UV/VIS Absorption and Fluorescence Spectroscopy
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences (from 2013).ORCID iD: 0000-0002-0995-3823
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics (from 2013).
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics (from 2013).ORCID iD: 0000-0002-2589-4667
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics (from 2013).ORCID iD: 0000-0002-1609-8909
2018 (English)In: Organic Electronics and Photonics: Fundamentals and Devices / [ed] S. Reineke, K. Vandewal, SPIE-INT SOC OPTICAL ENGINEERING , 2018, article id UNSP 106870AConference paper, Published paper (Refereed)
Abstract [en]

Blend thin films, prepared by dip-coating, of polyfluorene (F8 or PFO), acting as an electron donor, and [6,6]-phenyl-C-61-butyric acid methyl ester (PC60BM), acting as the electron acceptor, have been characterized by UV/VIS absorption spectroscopy, static and dynamic fluorescence, and atomic force microscopy. Four different solvents were used for the film preparation; the monohalogenated fluorobenzene and chlorobenzene and their dihalogenated counterparts o-difluorobenzene and o-dichlorobenzene, respectively. Fluid mechanics calculations were used to determine the withdrawal speed for each solvent, in order to prepare wet films of comparable thicknesses. The resulting dry films were also of similar thicknesses. It was found that the choice of solvent influences the ability for F8 to form its beta-phase.

Place, publisher, year, edition, pages
SPIE-INT SOC OPTICAL ENGINEERING , 2018. article id UNSP 106870A
Series
Proceedings of SPIE, ISSN 0277-786X ; 10687
National Category
Physical Sciences Materials Engineering Chemical Sciences
Research subject
Physics; Chemistry
Identifiers
URN: urn:nbn:se:kau:diva-70966DOI: 10.1117/12.2306857ISI: 000453618300001ISBN: 978-1-5106-1901-2 (print)OAI: oai:DiVA.org:kau-70966DiVA, id: diva2:1286669
Conference
Conference on Organic Electronics and Photonics - Fundamentals and Devices, APR 24-26, 2018, Strasbourg, FRANCE
Available from: 2019-02-07 Created: 2019-02-07 Last updated: 2019-06-14Bibliographically approved

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van Stam, JanEricsson, LeifDeribew, DargieMoons, Ellen

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