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dc.contributor.authorMica, Natalie
dc.contributor.authorAlmahmoud, S. A. J.
dc.contributor.authorKrishnan Jagadamma, Lethy
dc.contributor.authorCooke, G.
dc.contributor.authorSamuel, Ifor David William
dc.date.accessioned2018-11-23T13:30:05Z
dc.date.available2018-11-23T13:30:05Z
dc.date.issued2018-11-23
dc.identifier.citationMica , N , Almahmoud , S A J , Krishnan Jagadamma , L , Cooke , G & Samuel , I D W 2018 , ' An investigation of the role acceptor side chains play in the processibility and efficiency of organic solar cells fabricated from small molecular donors featuring 3,4-ethylenedioxythiophene cores ' , RSC Advances , vol. 8 , no. 69 , pp. 39231–39240 . https://doi.org/10.1039/C8RA07034Ben
dc.identifier.issn2046-2069
dc.identifier.otherPURE: 256592385
dc.identifier.otherPURE UUID: b8bbfd8d-3f5a-4aa6-8ce6-762ad00ff1fc
dc.identifier.otherScopus: 85057731587
dc.identifier.otherORCID: /0000-0002-4339-2484/work/60196633
dc.identifier.otherWOS: 000452116300002
dc.identifier.urihttps://hdl.handle.net/10023/16537
dc.descriptionThe authors are grateful for funding from EPSRC under grant codes EP/L012294/1, EP/L012170/1 and EP/L015110/1. Sondos Abdullah J Almahmoud acknowledges the Ministry of Higher education in Saudi Arabia for the funding and support.en
dc.description.abstractOrganic photovoltaic devices fabricated from small molecular donors continue to receive significant interest due to their desirable properties such as convenient synthesis, purification and batch-to-batch reproducibility. In this study, we have synthesized two small molecules based on an alternating A-D-A structure, utilizing a central EDOT donor moiety and either 2-ethylhexyl cyanoacetate ( SAM-80 ) or N-(2-ethylhexyl)cyanoacetamide ( SAM-72 ) units as acceptor termini. The small molecules were incorporated into bulk heterojunction solar cells with PC71BM . Our investigations have shown that the side chains utilized for SAM-80 only allow for solution processing using volatile solvents, such as chloroform, which limits the reproducibility of device fabrication. However, SAM-72 displays better solubility and devices fabricated using a SAM-72:PC71BM active layer reached average power conversion efficiencies of 1.9%, with fill factors reaching 60%. Post-processing methods such as thermal and solvent vapor annealing were found to significantly increase the stability of devices, but were not able to improve overall device performance.
dc.format.extent10
dc.language.isoeng
dc.relation.ispartofRSC Advancesen
dc.rightsCopyright 2018 the Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (http://creativecommons.org/licenses/by/3.0/)en
dc.subjectQC Physicsen
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subjectSDG 7 - Affordable and Clean Energyen
dc.subject.lccQCen
dc.subject.lccQDen
dc.titleAn investigation of the role acceptor side chains play in the processibility and efficiency of organic solar cells fabricated from small molecular donors featuring 3,4-ethylenedioxythiophene coresen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEPSRCen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doihttps://doi.org/10.1039/C8RA07034B
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/L012294/1en
dc.identifier.grantnumberEP/L015110/1en


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