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|Title:||Topographical and morphological aspects of spray coated organic photovoltaics||Authors:||Hoth, Claudia N.
Choulis, Stelios A.
Tedde, Sandro F.
Brabec, Christoph J.
|Keywords:||Spray coating;Photovoltaics;Solar cells;Polymers;Fullerenes;P3HT||Category:||Nano-technology||Field:||Engineering and Technology||Issue Date:||2009||Publisher:||Elsevier B.V||Source:||Organic Electronics, Volume 10, Issue 4, July 2009, Pages 587-593||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.||URI:||http://ktisis.cut.ac.cy/handle/10488/835||ISSN:||1566-1199||DOI:||http://dx.doi.org/10.1016/j.orgel.2009.02.010||Rights:||Copyright © 2009 Elsevier B.V. All rights reserved.||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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