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dc.contributor.authorAdhikari, Ten
dc.contributor.authorNunzi, JMen
dc.contributor.authorLebel, Olivieren
dc.date.accessioned2019-10-30T19:23:41Z
dc.date.available2019-10-30T19:23:41Z
dc.date.issued2017-07-05
dc.identifier.citationOrg. Electr. 49, 382-392 (2017)en
dc.identifier.urihttp://hdl.handle.net/1974/27425
dc.description.abstractOrganic photovoltaic cells incorporating a homogeneously blended amorphous active layer were fabricated using a novel glass-forming squarylium cyanine derivative (SQ-glass) as donor, and both a previously reported glass-forming diketopyrrolopyrrole (DPP-glass) and the benchmark PC61BM as acceptors. Whereas devices with DPP-glass always yielded an amorphous active layer, devices with PCBM could be either fully amorphous, or phase-segregated with crystalline PCBM, depending on processing conditions. Amorphous devices yielded efficiencies ranging up to 0.41-0.44 %, while the efficiency of devices with crystalline PCBM reached up to 0.56 %, which corresponds to only a 18 % increase relative to a fully amorphous active layer. Although phase-segregated active layers are known to show a higher efficiency, this difference is smaller than anticipated, and is mitigated by the absence in amorphous films of various defects common in their polycrystalline counterparts.en
dc.description.sponsorshipCanadian Defence Academic Research Programme (CDARP) of RMC Natural Sciences and Engineering Research Council (NSERC) Discovery Grants program (RGPIN-2015-05485) and CREATE program (Novel Chiral Materials: An International Effort in Research and Education)en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsThe final publication is available at Elsevier via https://doi.org/10.1016/j.orgel.2017.07.001 © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectOrganic Photovoltaic Cellsen
dc.subjectBulk Heterojunctionen
dc.subjectHomogeneous Blenden
dc.subjectMolecular Glassen
dc.subjectSquarylium Cyaninesen
dc.titleTowards amorphous solution-processed small-molecule photovoltaic cells by designen
dc.typejournal articleen
dc.identifier.doihttps://doi.org/10.1016/j.orgel.2017.07.001


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The final publication is available at Elsevier via https://doi.org/10.1016/j.orgel.2017.07.001 © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Except where otherwise noted, this item's license is described as The final publication is available at Elsevier via https://doi.org/10.1016/j.orgel.2017.07.001 © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license