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Title: Topographical and morphological aspects of spray coated organic photovoltaics
Authors: Hoth, Claudia N. 
Steim, Roland 
Schilinsky, Pavel 
Choulis, Stelios A. 
Tedde, Sandro F. 
Hayden, Oliver 
Brabec, Christoph J. 
Major Field of Science: Engineering and Technology
Field Category: Environmental Engineering
Keywords: Spray coating;Photovoltaics;Solar cells;Polymers;Fullerenes;P3HT
Issue Date: Jul-2009
Source: Organic Electronics, 2009, vol. 10, no. 4, pp. 587-593
Volume: 10
Issue: 4
Start page: 587
End page: 593
Journal: Organic Electronics 
Abstract: Herein we discuss the topographical and nanomorphological aspects of spray deposited organic photovoltaics. We show that the solvent properties have a massive impact on the topography, but less on the nanomorphology formation of composites based on the electron donor poly(3-hexylthiophene) (P3HT) and the electron acceptor [6,6]-phenyl C61 butyric acid methyl ester (PCBM). An adapted solvent mixture consisting of ortho-dichlorobenzene (oDCB) and 1,3,5-trimethylbenzene (mesitylene) allows us to demonstrate spray coated organic photovoltaic devices with 3.1% power conversion efficiency (PCE). Moreover, we show that spray coating is a feasible technology to deposit all solution processable layers of organic solar cells, including the hole transporting layer poly(3,4-ethylene dioxythiophene) doped with polystyrene sulphonic acid (PEDOT:PSS) as well and demonstrate fully spray coated devices with 2.7% PCE.
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2009.02.010
Collaboration : Konarka Technologies
University of Oldenburg
University of Karlsruhe
Cyprus University of Technology
Siemens AG
Rights: © Elsevier
Type: Article
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