Side-chain tunability of furan-containing low-band-gap polymers provides control of structural order in efficient solar cells

Handle URI:
http://hdl.handle.net/10754/562083
Title:
Side-chain tunability of furan-containing low-band-gap polymers provides control of structural order in efficient solar cells
Authors:
Yiu, Alan T.; Beaujuge, Pierre; Lee, Olivia P.; Woo, Claire; Toney, Michael F.; Frechet, Jean ( 0000-0001-6419-0163 )
Abstract:
The solution-processability of conjugated polymers in organic solvents has classically been achieved by modulating the size and branching of alkyl substituents appended to the backbone. However, these substituents impact structural order and charge transport properties in thin-film devices. As a result, a trade-off must be found between material solubility and insulating alkyl content. It was recently shown that the substitution of furan for thiophene in the backbone of the polymer PDPP2FT significantly improves polymer solubility, allowing for the use of shorter branched side chains while maintaining high device efficiency. In this report, we use PDPP2FT to demonstrate that linear alkyl side chains can be used to promote thin-film nanostructural order. In particular, linear side chains are shown to shorten π-π stacking distances between backbones and increase the correlation lengths of both π-π stacking and lamellar spacing, leading to a substantial increase in the efficiency of bulk heterojunction solar cells. © 2011 American Chemical Society.
KAUST Department:
Chemical Science Program; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC)
Publisher:
American Chemical Society
Journal:
Journal of the American Chemical Society
Issue Date:
Feb-2012
DOI:
10.1021/ja2089662
PubMed ID:
22191680
Type:
Article
ISSN:
00027863
Sponsors:
This work was supported in part by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, the Center for Advanced Molecular Photovoltaics (CAMP) under Award No. KUS-C1-015-21, supported by King Abdullah University of Science and Technology (KAUST), and the Frechet "various gifts" fund for the support of research in new materials. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource user facility, operated on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.
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.authorYiu, Alan T.en
dc.contributor.authorBeaujuge, Pierreen
dc.contributor.authorLee, Olivia P.en
dc.contributor.authorWoo, Claireen
dc.contributor.authorToney, Michael F.en
dc.contributor.authorFrechet, Jeanen
dc.date.accessioned2015-08-03T09:44:24Zen
dc.date.available2015-08-03T09:44:24Zen
dc.date.issued2012-02en
dc.identifier.issn00027863en
dc.identifier.pmid22191680en
dc.identifier.doi10.1021/ja2089662en
dc.identifier.urihttp://hdl.handle.net/10754/562083en
dc.description.abstractThe solution-processability of conjugated polymers in organic solvents has classically been achieved by modulating the size and branching of alkyl substituents appended to the backbone. However, these substituents impact structural order and charge transport properties in thin-film devices. As a result, a trade-off must be found between material solubility and insulating alkyl content. It was recently shown that the substitution of furan for thiophene in the backbone of the polymer PDPP2FT significantly improves polymer solubility, allowing for the use of shorter branched side chains while maintaining high device efficiency. In this report, we use PDPP2FT to demonstrate that linear alkyl side chains can be used to promote thin-film nanostructural order. In particular, linear side chains are shown to shorten π-π stacking distances between backbones and increase the correlation lengths of both π-π stacking and lamellar spacing, leading to a substantial increase in the efficiency of bulk heterojunction solar cells. © 2011 American Chemical Society.en
dc.description.sponsorshipThis work was supported in part by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, the Center for Advanced Molecular Photovoltaics (CAMP) under Award No. KUS-C1-015-21, supported by King Abdullah University of Science and Technology (KAUST), and the Frechet "various gifts" fund for the support of research in new materials. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource user facility, operated on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.en
dc.publisherAmerican Chemical Societyen
dc.titleSide-chain tunability of furan-containing low-band-gap polymers provides control of structural order in efficient solar cellsen
dc.typeArticleen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.identifier.journalJournal of the American Chemical Societyen
dc.contributor.institutionMaterials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United Statesen
dc.contributor.institutionDepartments of Chemistry, University of California, Berkeley, CA 94720-1460, United Statesen
dc.contributor.institutionDepartments of Chemical Engineering, University of California, Berkeley, CA 94720-1460, United Statesen
dc.contributor.institutionStanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, United Statesen
kaust.authorBeaujuge, Pierreen
kaust.authorFrechet, Jeanen

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