Solution-processed small molecule:fullerene bulk-heterojunction solar cells: impedance spectroscopy deduced bulk and interfacial limits to fill-factors
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Other documents of the author: Guerrero, Antonio; Loser, Stephen; Garcia-Belmonte, Germà; Bruns, Carson J.; Smith, Jeremy; Miyauchi, Hiroyuki; Stupp, Samuel I.; Bisquert, Juan; Marks, Tobin J.
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
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http://dx.doi.org/10.1002/oby.2039910.1039/C3CP52363B |
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Title
Solution-processed small molecule:fullerene bulk-heterojunction solar cells: impedance spectroscopy deduced bulk and interfacial limits to fill-factorsAuthor (s)
Date
2013Publisher
Royal Society of ChemistryISSN
1463-9076; 1463-9084Type
info:eu-repo/semantics/articlePublisher version
http://pubs.rsc.org/en/content/articlepdf/2013/cp/c3cp52363bVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
Using impedance spectroscopy, we demonstrate that the low fill factor (FF) typically observed in small molecule solar cells is due to hindered carrier transport through the active layer and hindered charge transfer ... [+]
Using impedance spectroscopy, we demonstrate that the low fill factor (FF) typically observed in small molecule solar cells is due to hindered carrier transport through the active layer and hindered charge transfer through the anode interfacial layer (IFL). By carefully tuning the active layer thickness and anode IFL in BDT(TDPP)2 solar cells, the FF is increased from 33 to 55% and the PCE from 1.9 to 3.8%. These results underscore the importance of simultaneously optimizing active layer thickness and IFL in small molecule solar cells. [-]
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Phys. Chem. Chem. Phys., 2013, Volume 15, Issue 39Rights
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- FCA_Articles [501]