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|Title:||Synergistic effects of buffer layer processing additives for enhanced hole carrier selectivity in inverted Organic Photovoltaics||Authors:||Savva, Achilleas
Choulis, Stelios A.
|Keywords:||Interfaces;Inverted organic solar cells;PEDOT:PSS buffer layers;Printed electronics;Processing additives;Solution based electronic materials||Category:||Electrical Engineering - Electronic Engineering - Information Engineering||Field:||Engineering and Technology||Issue Date:||19-Aug-2013||Publisher:||Elsevier||Source:||Organic Electronics: physics, materials, applications, 2013, vol. 14, no. 11, pp. 3123-3130||DOI:||http://dx.doi.org/10.1016/j.orgel.2013.07.024||Journal:||Organic Electronics: physics, materials, applications||Abstract:||Solution based inverted Organic Photovoltaic (OPVs) usually use Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) derivatives combined with pristine processing additives as hole selective contact on top of the hydrophobic conjugated polymer:fullerene active layer. In this study, PEDOT:PSS based hole selective contact is treated with two different boiling point additives, 2,5,8,11-tetramethyl-6-dodecyn-5,8-diol ethoxylate (Dynol) and Zonyl FS-300 fluorosurfactant (Zonyl). Although corresponding inverted OPVs using the above PEDOT:PSS:Additives show similar power conversion efficiency (PCE) values, the mechanisms of their implementation on inverted OPV operation are not identical. By understanding the synergistic effects of PEDOT:PSS processing additives on the hole selectivity of inverted OPVs we demonstrate a novel combination of PEDOT:PSS additives mixture as an effective route to further increase the hole selectivity, reliability andpower conversion efficiency of inverted OPVs.||ISSN:||1566-1199||DOI:||10.1016/j.orgel.2013.07.024||Rights:||© 2013 Elsevier||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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