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dc.contributor.authorFirdaus, Yuliar
dc.contributor.authorLe Corre, Vincent M.
dc.contributor.authorKaruthedath, Safakath
dc.contributor.authorLiu, Wenlan
dc.contributor.authorMarkina, Anastasia
dc.contributor.authorHuang, Wentao
dc.contributor.authorChattopadhyay, Shirsopratim
dc.contributor.authorNahid, Masrur Morshed
dc.contributor.authorNugraha, Mohamad I.
dc.contributor.authorLin, Yuanbao
dc.contributor.authorSeitkhan, Akmaral
dc.contributor.authorBasu, Aniruddha
dc.contributor.authorZhang, Weimin
dc.contributor.authorMcCulloch, Iain
dc.contributor.authorAde, Harald
dc.contributor.authorLabram, John G.
dc.contributor.authorLaquai, Frédéric
dc.contributor.authorAndrienko, Denis
dc.contributor.authorKoster, L. Jan Anton
dc.contributor.authorAnthopoulos, Thomas D.
dc.date.accessioned2020-11-02T13:27:18Z
dc.date.available2020-11-02T13:27:18Z
dc.date.issued2020-10-15
dc.date.submitted2020-07-06
dc.identifier.citationFirdaus, Y., Le Corre, V. M., Karuthedath, S., Liu, W., Markina, A., Huang, W., … Anthopoulos, T. D. (2020). Long-range exciton diffusion in molecular non-fullerene acceptors. Nature Communications, 11(1). doi:10.1038/s41467-020-19029-9
dc.identifier.issn2041-1723
dc.identifier.pmid33060574
dc.identifier.doi10.1038/s41467-020-19029-9
dc.identifier.urihttp://hdl.handle.net/10754/665769
dc.description.abstractAbstract The short exciton diffusion length associated with most classical organic semiconductors used in organic photovoltaics (5-20 nm) imposes severe limits on the maximum size of the donor and acceptor domains within the photoactive layer of the cell. Identifying materials that are able to transport excitons over longer distances can help advancing our understanding and lead to solar cells with higher efficiency. Here, we measure the exciton diffusion length in a wide range of nonfullerene acceptor molecules using two different experimental techniques based on photocurrent and ultrafast spectroscopy measurements. The acceptors exhibit balanced ambipolar charge transport and surprisingly long exciton diffusion lengths in the range of 20 to 47 nm. With the aid of quantum-chemical calculations, we are able to rationalize the exciton dynamics and draw basic chemical design rules, particularly on the importance of the end-group substituent on the crystal packing of nonfullerene acceptors.
dc.description.sponsorshipThis publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2018-CARF/CCF-3079. The work by V.M.L.C. is supported by a grant from STW/NWO (VIDI 13476). This is a publication by the FOM Focus Group “Next Generation Organic Photovoltaics”, participating in the Dutch Institute for Fundamental Energy Research (DIFFER). D.A. acknowledges funding from the BMBF grants InterPhase and MESOMERIE (FKZ 13N13661, FKZ 13N13656) and the European Union Horizon 2020 research and innovation program “Widening materials models” under Grant Agreement No. 646259 (MOSTOPHOS). D.A. also acknowledges the KAUST PSE Division for hosting his sabbatical in the framework of the Division’s Visiting Faculty program. A.M. acknowledges postdoctoral support of the Alexander von Humboldt Foundation. H.A.and M.M.N. acknowledge the support from the University of North Carolina General Administration Research Opportunity Initiative (ROI) and U.S. Department of Energy (DE-AC02-05CH11231) for X-ray data acquisition at beamline 7.3.3 at the Advanced Light Source (ALS) in Berkeley National Laboratory, California.
dc.publisherSpringer Science and Business Media LLC
dc.relation.urlhttp://www.nature.com/articles/s41467-020-19029-9
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleLong-range exciton diffusion in molecular non-fullerene acceptors
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentKing Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Material Science and Engineering Program (MSE), 23955-6900, Thuwal, Kingdom of Saudi Arabia
dc.contributor.departmentMaterial Science and Engineering
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentChemical Science Program
dc.identifier.journalNature Communications
dc.identifier.pmcidPMC7562871
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionUniversity of Groningen, Zernike Institute for Advanced Materials, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
dc.contributor.institutionMax Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
dc.contributor.institutionDepartment of Physics, Imperial College London, South Kensington, London, SW7 2AZ, UK
dc.contributor.institutionElectrical Engineering and Computer Science, Oregon State University, 3103 Kelley Engineering Center, Corvallis, OR, 97331, USA
dc.contributor.institutionDepartment of Physics, Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, 27695, USA
dc.identifier.volume11
dc.identifier.issue1
kaust.personFirdaus, Yuliar
kaust.personKaruthedath, Safakath
kaust.personNugraha, Mohamad I.
kaust.personLin, Yuanbao
kaust.personSeitkhan, Akmaral
kaust.personBasu, Aniruddha
kaust.personZhang, Weimin
kaust.personMcCulloch, Iain
kaust.personLaquai, Frederic
kaust.personAnthopoulos, Thomas D.
kaust.grant.numberAward No. OSR-2018-CARF/CCF-3079.
dc.date.accepted2020-09-16
dc.identifier.eid2-s2.0-85092584343
refterms.dateFOA2020-11-02T13:28:49Z
kaust.acknowledged.supportUnitCCF
kaust.acknowledged.supportUnitOffice of Sponsored Research (OSR)
dc.date.published-online2020-10-15
dc.date.published-print2020-12


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This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
Except where otherwise noted, this item's license is described as This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.