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dc.contributor.authorAdhikari, Ten
dc.contributor.authorLebel, Olivieren
dc.contributor.authorNunzi, JMen
dc.date.accessioned2019-10-31T13:12:08Z
dc.date.available2019-10-31T13:12:08Z
dc.date.issued2017-06-06
dc.identifier.citationOrg. Electr. 48, 230-240 (2017)en
dc.identifier.urihttp://hdl.handle.net/1974/27430
dc.description.abstractA novel glass-forming diketopyrrolpyrrole (DPP) derivative (DPP-glass) and a crystalline isoelectronic analogue were synthesized and their photophysical, electrochemical and photovoltaic properties were investigated. The compounds were processed into thin films that were further studied by Atomic force microscopy (AFM) and X-ray diffraction (XRD). Solution-processed inverted and regular bulk heterojunction photovoltaic cells were fabricated in different blend ratios with P3HT as donor. Both DPP derivatives show appreciable photovoltaic performance with power conversion efficiencies (PCE) ranging from 0.30 to 2.50%. The regular device with amorphous DPP-glass showed the highest efficiency (2.50%) in the blend ratio 1:2 whereas the device with crystalline DPP derivative shows an efficiency of 1.56% under simulated 1.5 solar irradiation of 100 mWcm-2. The better performance of DPP-glass in comparison to its crystalline analogue is attributed to a more uniform film morphology and fewer defects, leading to improved electron mobility.en
dc.description.sponsorshipNational Science and Engineering Research Council of Canada (NSERC) Discovery Grants program (RGPIN-2015-05485) and CREATE program (Novel Chiral Materials: An International Effort in Research and Education). Canadian Defence Academic Research Program (CDARP)en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsThe final publication is available at Elsevier via https://doi.org/10.1016/j.orgel.2017.06.008 © 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.subjectPhotovoltaic Cellen
dc.subjectBulk Heterojunctionen
dc.subjectNon-Fullerene Acceptoren
dc.subjectDiketopyrrolopyrroleen
dc.subjectThin Filmen
dc.subjectMolecular Glassen
dc.titleSolid-state showdown: comparing the photovoltaic performance of amorphous and crystalline small-molecule diketopyrrolopyrrole acceptorsen
dc.typejournal articleen
dc.identifier.doihttps://doi.org/10.1016/j.orgel.2017.06.008


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The final publication is available at Elsevier via https://doi.org/10.1016/j.orgel.2017.06.008 © 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.2017.06.008 © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license