Chalcogenophene comonomer comparison in small band gap diketopyrrolopyrrole-based conjugated polymers for high-performing field-effect transistors and organic solar cells

Handle URI:
http://hdl.handle.net/10754/564023
Title:
Chalcogenophene comonomer comparison in small band gap diketopyrrolopyrrole-based conjugated polymers for high-performing field-effect transistors and organic solar cells
Authors:
Ashraf, Raja Shahid; Meager, Iain; Nikolka, Mark; Kirkus, Mindaugas; Planells, Miquel; Schroeder, Bob C.; Holliday, Sarah; Hurhangee, Michael; Nielsen, Christian Bergenstof; Sirringhaus, Henning; McCulloch, Iain ( 0000-0002-6340-7217 )
Abstract:
The design, synthesis, and characterization of a series of diketopyrrolopyrrole-based copolymers with different chalcogenophene comonomers (thiophene, selenophene, and tellurophene) for use in field-effect transistors and organic photovoltaic devices are reported. The effect of the heteroatom substitution on the optical, electrochemical, and photovoltaic properties and charge carrier mobilities of these polymers is discussed. The results indicate that by increasing the size of the chalcogen atom (S < Se < Te), polymer band gaps are narrowed mainly due to LUMO energy level stabilization. In addition, the larger heteroatomic size also increases intermolecular heteroatom-heteroatom interactions facilitating the formation of polymer aggregates leading to enhanced field-effect mobilities of 1.6 cm2/(V s). Bulk heterojunction solar cells based on the chalcogenophene polymer series blended with fullerene derivatives show good photovoltaic properties, with power conversion efficiencies ranging from 7.1-8.8%. A high photoresponse in the near-infrared (NIR) region with excellent photocurrents above 20 mA cm-2 was achieved for all polymers, making these highly efficient low band gap polymers promising candidates for use in tandem solar cells. (Graph Presented).
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Solar and Photovoltaic Engineering Research Center (SPERC)
Publisher:
American Chemical Society (ACS)
Journal:
Journal of the American Chemical Society
Issue Date:
28-Jan-2015
DOI:
10.1021/ja511984q
Type:
Article
ISSN:
00027863
Sponsors:
This work was carried out primarily with funding and supports from the X10D Project (EC 287818) and The Leventis Foundation with support from EPSRC (EP/G037515/1 and EP/L016702/1). M.K. acknowledges support from Nano-matcell Project (EU 308997), and M.P. acknowledges support from the Artesun Project (EU 604397).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorAshraf, Raja Shahiden
dc.contributor.authorMeager, Iainen
dc.contributor.authorNikolka, Marken
dc.contributor.authorKirkus, Mindaugasen
dc.contributor.authorPlanells, Miquelen
dc.contributor.authorSchroeder, Bob C.en
dc.contributor.authorHolliday, Sarahen
dc.contributor.authorHurhangee, Michaelen
dc.contributor.authorNielsen, Christian Bergenstofen
dc.contributor.authorSirringhaus, Henningen
dc.contributor.authorMcCulloch, Iainen
dc.date.accessioned2015-08-03T12:28:50Zen
dc.date.available2015-08-03T12:28:50Zen
dc.date.issued2015-01-28en
dc.identifier.issn00027863en
dc.identifier.doi10.1021/ja511984qen
dc.identifier.urihttp://hdl.handle.net/10754/564023en
dc.description.abstractThe design, synthesis, and characterization of a series of diketopyrrolopyrrole-based copolymers with different chalcogenophene comonomers (thiophene, selenophene, and tellurophene) for use in field-effect transistors and organic photovoltaic devices are reported. The effect of the heteroatom substitution on the optical, electrochemical, and photovoltaic properties and charge carrier mobilities of these polymers is discussed. The results indicate that by increasing the size of the chalcogen atom (S < Se < Te), polymer band gaps are narrowed mainly due to LUMO energy level stabilization. In addition, the larger heteroatomic size also increases intermolecular heteroatom-heteroatom interactions facilitating the formation of polymer aggregates leading to enhanced field-effect mobilities of 1.6 cm2/(V s). Bulk heterojunction solar cells based on the chalcogenophene polymer series blended with fullerene derivatives show good photovoltaic properties, with power conversion efficiencies ranging from 7.1-8.8%. A high photoresponse in the near-infrared (NIR) region with excellent photocurrents above 20 mA cm-2 was achieved for all polymers, making these highly efficient low band gap polymers promising candidates for use in tandem solar cells. (Graph Presented).en
dc.description.sponsorshipThis work was carried out primarily with funding and supports from the X10D Project (EC 287818) and The Leventis Foundation with support from EPSRC (EP/G037515/1 and EP/L016702/1). M.K. acknowledges support from Nano-matcell Project (EU 308997), and M.P. acknowledges support from the Artesun Project (EU 604397).en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleChalcogenophene comonomer comparison in small band gap diketopyrrolopyrrole-based conjugated polymers for high-performing field-effect transistors and organic solar cellsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.identifier.journalJournal of the American Chemical Societyen
dc.contributor.institutionDepartment of Chemistry and Centre for Plastic Electronics, Imperial College LondonLondon, United Kingdomen
dc.contributor.institutionCavendish Laboratory, University of CambridgeCambridge, United Kingdomen
kaust.authorMcCulloch, Iainen
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