Impact of the Crystallite Orientation Distribution on Exciton Transport in Donor–Acceptor Conjugated Polymers

Handle URI:
http://hdl.handle.net/10754/598568
Title:
Impact of the Crystallite Orientation Distribution on Exciton Transport in Donor–Acceptor Conjugated Polymers
Authors:
Ayzner, Alexander L.; Mei, Jianguo; Appleton, Anthony; DeLongchamp, Dean; Nardes, Alexandre; Benight, Stephanie; Kopidakis, Nikos; Toney, Michael F.; Bao, Zhenan
Abstract:
© 2015 American Chemical Society. Conjugated polymers are widely used materials in organic photovoltaic devices. Owing to their extended electronic wave functions, they often form semicrystalline thin films. In this work, we aim to understand whether distribution of crystallographic orientations affects exciton diffusion using a low-band-gap polymer backbone motif that is representative of the donor/acceptor copolymer class. Using the fact that the polymer side chain can tune the dominant crystallographic orientation in the thin film, we have measured the quenching of polymer photoluminescence, and thus the extent of exciton dissociation, as a function of crystal orientation with respect to a quenching substrate. We find that the crystallite orientation distribution has little effect on the average exciton diffusion length. We suggest several possibilities for the lack of correlation between crystallographic texture and exciton transport in semicrystalline conjugated polymer films.
Citation:
Ayzner AL, Mei J, Appleton A, DeLongchamp D, Nardes A, et al. (2015) Impact of the Crystallite Orientation Distribution on Exciton Transport in Donor–Acceptor Conjugated Polymers. ACS Applied Materials & Interfaces 7: 28035–28041. Available: http://dx.doi.org/10.1021/acsami.5b02968.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
KAUST Grant Number:
KUS-C1-015-21
Issue Date:
30-Dec-2015
DOI:
10.1021/acsami.5b02968
PubMed ID:
26292836
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
We thank the Bent group at Stanford University for help with ALD preparation of titania films. This work was partially supported by the Center for Advanced Molecular Photovoltaics, Award No. KUS-C1-015-21, made by King Abdullah University of Science and Technology. We also acknowledge support from the Global Climate and Energy Program at Stanford. GIXD measurements were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. N.K. and A.M.N. acknowledge funding from the Energy Frontier Research Center “Molecularly Engineered Energy Materials (MEEMs)” funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract Number DE-SC0001342:001.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorAyzner, Alexander L.en
dc.contributor.authorMei, Jianguoen
dc.contributor.authorAppleton, Anthonyen
dc.contributor.authorDeLongchamp, Deanen
dc.contributor.authorNardes, Alexandreen
dc.contributor.authorBenight, Stephanieen
dc.contributor.authorKopidakis, Nikosen
dc.contributor.authorToney, Michael F.en
dc.contributor.authorBao, Zhenanen
dc.date.accessioned2016-02-25T13:32:18Zen
dc.date.available2016-02-25T13:32:18Zen
dc.date.issued2015-12-30en
dc.identifier.citationAyzner AL, Mei J, Appleton A, DeLongchamp D, Nardes A, et al. (2015) Impact of the Crystallite Orientation Distribution on Exciton Transport in Donor–Acceptor Conjugated Polymers. ACS Applied Materials & Interfaces 7: 28035–28041. Available: http://dx.doi.org/10.1021/acsami.5b02968.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.pmid26292836en
dc.identifier.doi10.1021/acsami.5b02968en
dc.identifier.urihttp://hdl.handle.net/10754/598568en
dc.description.abstract© 2015 American Chemical Society. Conjugated polymers are widely used materials in organic photovoltaic devices. Owing to their extended electronic wave functions, they often form semicrystalline thin films. In this work, we aim to understand whether distribution of crystallographic orientations affects exciton diffusion using a low-band-gap polymer backbone motif that is representative of the donor/acceptor copolymer class. Using the fact that the polymer side chain can tune the dominant crystallographic orientation in the thin film, we have measured the quenching of polymer photoluminescence, and thus the extent of exciton dissociation, as a function of crystal orientation with respect to a quenching substrate. We find that the crystallite orientation distribution has little effect on the average exciton diffusion length. We suggest several possibilities for the lack of correlation between crystallographic texture and exciton transport in semicrystalline conjugated polymer films.en
dc.description.sponsorshipWe thank the Bent group at Stanford University for help with ALD preparation of titania films. This work was partially supported by the Center for Advanced Molecular Photovoltaics, Award No. KUS-C1-015-21, made by King Abdullah University of Science and Technology. We also acknowledge support from the Global Climate and Energy Program at Stanford. GIXD measurements were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. N.K. and A.M.N. acknowledge funding from the Energy Frontier Research Center “Molecularly Engineered Energy Materials (MEEMs)” funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract Number DE-SC0001342:001.en
dc.publisherAmerican Chemical Society (ACS)en
dc.subjectconjugated polymeren
dc.subjectcrystallographic orientationen
dc.subjectexciton diffusionen
dc.subjectfluorescence quenchingen
dc.subjecttextureen
dc.titleImpact of the Crystallite Orientation Distribution on Exciton Transport in Donor–Acceptor Conjugated Polymersen
dc.typeArticleen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionStanford University, Palo Alto, United Statesen
dc.contributor.institutionStanford Synchrotron Radiation Laboratory, Menlo Park, United Statesen
dc.contributor.institutionNational Institute of Standards and Technology, Gaithersburg, United Statesen
dc.contributor.institutionNational Renewable Energy Laboratory, Golden, United Statesen
dc.contributor.institutionUniversity of California, Santa Cruz, Santa Cruz, United Statesen
dc.contributor.institutionPurdue University College of Science, West Lafayette, United Statesen
dc.contributor.institutionSt. Petersburg College, St Petersburg, United Statesen
kaust.grant.numberKUS-C1-015-21en
kaust.grant.fundedcenterCenter for Advanced Molecular Photovoltaics (CAMP)en

Related articles on PubMed

All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.