Ultra-low p-doping of poly(3-hexylthiophene) and its impact on polymer aggregation and photovoltaic performance

Handle URI:
http://hdl.handle.net/10754/619763
Title:
Ultra-low p-doping of poly(3-hexylthiophene) and its impact on polymer aggregation and photovoltaic performance
Authors:
Said, Marcel M.; Zhang, Yadong; Dasari, Raghunath R.; Anjum, Dalaver H.; Munir, Rahim ( 0000-0002-6029-3760 ) ; Hu, Hanlin; Amassian, Aram ( 0000-0002-5734-1194 ) ; Barlow, Stephen; Marder, Seth R.
Abstract:
Poly(3-hexylthiophene) (P3HT) films and P3HT / fullerene photovoltaic cells have been p-doped with very low levels (< 1 wt. %) of molybdenum tris[1-(trifluoromethylcarbonyl)- 2-(trifluoromethyl)-ethane-1,2-dithiolene]. The dopants are inhomogenously distributed within doped P3HT films, both laterally and as a function of depth, and appear to aggregate in some instances. Doping also results in subtle changes in the local and long range order of the P3HT film. These effects likely contribute to the complexity of the observed evolutions in conductivity, mobility and work function with doping levels. They also negatively affect the open-circuit voltage and fill factor of solar cells in unexpected ways, indicating that dopant aggregation and non-uniform distribution can harm device performance.
KAUST Department:
Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC)
Citation:
Ultra-low p-doping of poly(3-hexylthiophene) and its impact on polymer aggregation and photovoltaic performance 2016, 4 (1):1 Organic Photonics and Photovoltaics
Publisher:
Walter de Gruyter GmbH
Journal:
Organic Photonics and Photovoltaics
Issue Date:
25-Apr-2016
DOI:
10.1515/oph-2016-0001
Type:
Article
ISSN:
2299-3177
Sponsors:
This work was supported by the Office of Naval Research (N00014- 14-1-0126) and the Air Force Office of Scientific Research (BIONIC Program, FA9550-09-1-0162). The author would like to thank Guy Olivier Ngongang and Kui Zhao for their generous assistance and input regarding photovoltaic and transistor measurements, and absorbance data modelling.
Additional Links:
http://www.degruyter.com/view/j/oph.2016.4.issue-1/oph-2016-0001/oph-2016-0001.xml
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorSaid, Marcel M.en
dc.contributor.authorZhang, Yadongen
dc.contributor.authorDasari, Raghunath R.en
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorMunir, Rahimen
dc.contributor.authorHu, Hanlinen
dc.contributor.authorAmassian, Aramen
dc.contributor.authorBarlow, Stephenen
dc.contributor.authorMarder, Seth R.en
dc.date.accessioned2016-09-04T07:30:45Z-
dc.date.available2016-09-04T07:30:45Z-
dc.date.issued2016-04-25-
dc.identifier.citationUltra-low p-doping of poly(3-hexylthiophene) and its impact on polymer aggregation and photovoltaic performance 2016, 4 (1):1 Organic Photonics and Photovoltaicsen
dc.identifier.issn2299-3177-
dc.identifier.doi10.1515/oph-2016-0001-
dc.identifier.urihttp://hdl.handle.net/10754/619763-
dc.description.abstractPoly(3-hexylthiophene) (P3HT) films and P3HT / fullerene photovoltaic cells have been p-doped with very low levels (< 1 wt. %) of molybdenum tris[1-(trifluoromethylcarbonyl)- 2-(trifluoromethyl)-ethane-1,2-dithiolene]. The dopants are inhomogenously distributed within doped P3HT films, both laterally and as a function of depth, and appear to aggregate in some instances. Doping also results in subtle changes in the local and long range order of the P3HT film. These effects likely contribute to the complexity of the observed evolutions in conductivity, mobility and work function with doping levels. They also negatively affect the open-circuit voltage and fill factor of solar cells in unexpected ways, indicating that dopant aggregation and non-uniform distribution can harm device performance.en
dc.description.sponsorshipThis work was supported by the Office of Naval Research (N00014- 14-1-0126) and the Air Force Office of Scientific Research (BIONIC Program, FA9550-09-1-0162). The author would like to thank Guy Olivier Ngongang and Kui Zhao for their generous assistance and input regarding photovoltaic and transistor measurements, and absorbance data modelling.en
dc.language.isoenen
dc.publisherWalter de Gruyter GmbHen
dc.relation.urlhttp://www.degruyter.com/view/j/oph.2016.4.issue-1/oph-2016-0001/oph-2016-0001.xmlen
dc.rightsArchived with thanks to Organic Photonics and Photovoltaics. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0). http://creativecommons.org/licenses/by-nc-nd/3.0en
dc.subjectorganic photovoltaicsen
dc.subjectmorphologyen
dc.subjectmolecular dopanten
dc.subjectX-ray scatteringen
dc.subjectp-dopingen
dc.titleUltra-low p-doping of poly(3-hexylthiophene) and its impact on polymer aggregation and photovoltaic performanceen
dc.typeArticleen
dc.contributor.departmentImaging and Characterization Core Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.identifier.journalOrganic Photonics and Photovoltaicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionSchool of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332-0400, United Statesen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAnjum, Dalaver H.en
kaust.authorMunir, Rahimen
kaust.authorHu, Hanlinen
kaust.authorAmassian, Aramen
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