Comparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cells

Handle URI:
http://hdl.handle.net/10754/622386
Title:
Comparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cells
Authors:
Kroon, Renee; Melianas, Armantas; Zhuang, Wenliu; Bergqvist, Jonas; Diaz De Zerio Mendaza, Amaia; Steckler, Timothy T.; Yu, Liyang; Bradley, Siobhan J.; Musumeci, Chiara; Gedefaw, Desta; Nann, Thomas; Amassian, Aram ( 0000-0002-5734-1194 ) ; Müller, Christian; Inganäs, Olle; Andersson, Mats R.
Abstract:
In this work, we compare the effect of incorporating selenophene versus thienothiophene spacers into pentacyclic lactam-based conjugated polymers for organic solar cells. The two cyclic lactam-based copolymers were obtained via a new synthetic method for the lactam moiety. Selenophene incorporation results in a broader and red-shifted optical absorption while retaining a deep highest occupied molecular orbital level, whereas thienothienophene incorporation results in a blue-shifted optical absorption. Additionally, grazing-incidence wide angle X-ray scattering data indicates edge- and face-on solid state order for the selenophene-based polymer as compared to the thienothiophene-based polymer, which orders predominantly edge-on with respect to the substrate. In polymer:PCBM bulk heterojunction solar cells both materials show a similar open-circuit voltage of ∼0.80-0.84 V, however the selenophene-based polymer displays a higher fill factor of ∼0.70 vs. ∼0.65. This is due to the partial face-on backbone orientation of the selenophene-based polymer, leading to a higher hole mobility, as confirmed by single-carrier diode measurements, and a concomitantly higher fill factor. Combined with improved spectral coverage of the selenophene-based polymer, as confirmed by quantum efficiency experiments, it offers a larger short-circuit current density of ∼12 mA cm. Despite the relatively low molecular weight of both materials, a very robust power conversion efficiency ∼7% is achieved for the selenophene-based polymer, while the thienothiophene-based polymer demonstrates only a moderate maximum PCE of ∼5.5%. Hence, the favorable effects of selenophene incorporation on the photovoltaic performance of pentacyclic lactam-based conjugated polymers are clearly demonstrated.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division
Citation:
Kroon R, Melianas A, Zhuang W, Bergqvist J, Diaz de Zerio Mendaza A, et al. (2015) Comparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cells. Polym Chem 6: 7402–7409. Available: http://dx.doi.org/10.1039/C5PY01245G.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Polym. Chem.
Issue Date:
8-Sep-2015
DOI:
10.1039/C5PY01245G
Type:
Article
ISSN:
1759-9954; 1759-9962
Sponsors:
We thank the Chalmers Areas of Advance Materials Science, Energy and Nanoscience and Nanotechnology as well as the Swedish Research Council, the Knut and Alice Wallenberg foundation through a Wallenberg Scholar grant to OI, Formas for funding. O.I., R.K. and M.R.A. further acknowledge the Swedish Energy Agency and R.K and M.R.A. the South Australian government for financial support. A.A. acknowledges SABIC for the Career Development SABIC Chair. Part of this work was done at the Cornell High Energy Synchrotron Source (CHESS), supported by the NSF & NIH/NIGMS via NSF award DMR-1332208.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorKroon, Reneeen
dc.contributor.authorMelianas, Armantasen
dc.contributor.authorZhuang, Wenliuen
dc.contributor.authorBergqvist, Jonasen
dc.contributor.authorDiaz De Zerio Mendaza, Amaiaen
dc.contributor.authorSteckler, Timothy T.en
dc.contributor.authorYu, Liyangen
dc.contributor.authorBradley, Siobhan J.en
dc.contributor.authorMusumeci, Chiaraen
dc.contributor.authorGedefaw, Destaen
dc.contributor.authorNann, Thomasen
dc.contributor.authorAmassian, Aramen
dc.contributor.authorMüller, Christianen
dc.contributor.authorInganäs, Olleen
dc.contributor.authorAndersson, Mats R.en
dc.date.accessioned2017-01-02T09:28:28Z-
dc.date.available2017-01-02T09:28:28Z-
dc.date.issued2015-09-08en
dc.identifier.citationKroon R, Melianas A, Zhuang W, Bergqvist J, Diaz de Zerio Mendaza A, et al. (2015) Comparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cells. Polym Chem 6: 7402–7409. Available: http://dx.doi.org/10.1039/C5PY01245G.en
dc.identifier.issn1759-9954en
dc.identifier.issn1759-9962en
dc.identifier.doi10.1039/C5PY01245Gen
dc.identifier.urihttp://hdl.handle.net/10754/622386-
dc.description.abstractIn this work, we compare the effect of incorporating selenophene versus thienothiophene spacers into pentacyclic lactam-based conjugated polymers for organic solar cells. The two cyclic lactam-based copolymers were obtained via a new synthetic method for the lactam moiety. Selenophene incorporation results in a broader and red-shifted optical absorption while retaining a deep highest occupied molecular orbital level, whereas thienothienophene incorporation results in a blue-shifted optical absorption. Additionally, grazing-incidence wide angle X-ray scattering data indicates edge- and face-on solid state order for the selenophene-based polymer as compared to the thienothiophene-based polymer, which orders predominantly edge-on with respect to the substrate. In polymer:PCBM bulk heterojunction solar cells both materials show a similar open-circuit voltage of ∼0.80-0.84 V, however the selenophene-based polymer displays a higher fill factor of ∼0.70 vs. ∼0.65. This is due to the partial face-on backbone orientation of the selenophene-based polymer, leading to a higher hole mobility, as confirmed by single-carrier diode measurements, and a concomitantly higher fill factor. Combined with improved spectral coverage of the selenophene-based polymer, as confirmed by quantum efficiency experiments, it offers a larger short-circuit current density of ∼12 mA cm. Despite the relatively low molecular weight of both materials, a very robust power conversion efficiency ∼7% is achieved for the selenophene-based polymer, while the thienothiophene-based polymer demonstrates only a moderate maximum PCE of ∼5.5%. Hence, the favorable effects of selenophene incorporation on the photovoltaic performance of pentacyclic lactam-based conjugated polymers are clearly demonstrated.en
dc.description.sponsorshipWe thank the Chalmers Areas of Advance Materials Science, Energy and Nanoscience and Nanotechnology as well as the Swedish Research Council, the Knut and Alice Wallenberg foundation through a Wallenberg Scholar grant to OI, Formas for funding. O.I., R.K. and M.R.A. further acknowledge the Swedish Energy Agency and R.K and M.R.A. the South Australian government for financial support. A.A. acknowledges SABIC for the Career Development SABIC Chair. Part of this work was done at the Cornell High Energy Synchrotron Source (CHESS), supported by the NSF & NIH/NIGMS via NSF award DMR-1332208.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleComparison of selenophene and thienothiophene incorporation into pentacyclic lactam-based conjugated polymers for organic solar cellsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPolym. Chem.en
dc.contributor.institutionIan Wark Research Institute, University of South Australia, Mawson Lakes Boulevard, Adelaide, SA, 5095, Australiaen
dc.contributor.institutionDepartment of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, 41296, Swedenen
dc.contributor.institutionDepartment of Physics, Chemistry and Biology, Linköping University, Linköping, 581 83, Swedenen
kaust.authorYu, Liyangen
kaust.authorAmassian, Aramen
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