Inverted photovoltaic cells of nanocolumnar C60 filled with solution processed small molecule 3-Q

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DOIResolve DOI: http://doi.org/10.1016/j.orgel.2012.07.039
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TypeArticle
Journal titleOrganic Electronics
ISSN15661199
Volume13
Issue11
Pages26472652
SubjectGlancing angle deposition; Small molecule thin films; Organic solar cells; C60 fullerene; Nanostructure; Inverted architecture
AbstractNanocolumnar C60 films for inverted organic photovoltaic cells (OPVs) were fabricated by glancing angle deposition (GLAD), and morphologies depending on variation in deposition angle were studied. To complete the OPV devices, small molecules of the donor material 3-Q were spin coated into the C60 films. In order to avoid the difficulties of solvent stability of the C60 films, acetone was used as the process solvent for spin coating. The nanocolumnar morphology improves exciton harvesting by increasing absorbance while providing an effective conductive path for charge carriers. The resulting GLAD C60/3-Q devices outperformed both planar devices and PC61BM:3-Q bulk heterojunctions with threefold and twofold short-circuit current increases, respectively.
Publication date
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; National Research Council Canada
Peer reviewedYes
IdentifierS1566119912003643
NPARC number21268836
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Record identifierdd22163b-c407-4520-9082-9f4cbb6f74aa
Record created2013-11-14
Record modified2016-05-09
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