Additive-Morphology Interplay and Loss Channels in “All-Small-Molecule” Bulk-heterojunction (BHJ) Solar Cells with the Nonfullerene Acceptor IDTTBM

Handle URI:
http://hdl.handle.net/10754/626634
Title:
Additive-Morphology Interplay and Loss Channels in “All-Small-Molecule” Bulk-heterojunction (BHJ) Solar Cells with the Nonfullerene Acceptor IDTTBM
Authors:
Liang, Ru-Ze; Babics, Maxime; Seitkhan, Akmaral; Wang, Kai; Geraghty, Paul Bythell; Lopatin, Sergei; Cruciani, Federico; Firdaus, Yuliar; Caporuscio, Marco; Jones, David J.; Beaujuge, Pierre
Abstract:
Achieving efficient bulk-heterojunction (BHJ) solar cells from blends of solution-processable small-molecule (SM) donors and acceptors is proved particularly challenging due to the complexity in obtaining a favorable donor–acceptor morphology. In this report, the BHJ device performance pattern of a set of analogous, well-defined SM donors—DR3TBDTT (DR3), SMPV1, and BTR—used in conjunction with the SM acceptor IDTTBM is examined. Examinations show that the nonfullerene “All-SM” BHJ solar cells made with DR3 and IDTTBM can achieve power conversion efficiencies (PCEs) of up to ≈4.5% (avg. 4.0%) when the solution-processing additive 1,8-diiodooctane (DIO, 0.8% v/v) is used in the blend solutions. The figures of merit of optimized DR3:IDTTBM solar cells contrast with those of “as-cast” BHJ devices from which only modest PCEs <1% can be achieved. Combining electron energy loss spectrum analyses in scanning transmission electron microscopy mode, carrier transport measurements via “metal-insulator-semiconductor carrier extraction” methods, and systematic recombination examinations by light-dependence and transient photocurrent analyses, it is shown that DIO plays a determining role—establishing a favorable lengthscale for the phase-separated SM donor–acceptor network and, in turn, improving the balance in hole/electron mobilities and the carrier collection efficiencies overall.
KAUST Department:
KAUST Solar Center (KSC); Physical Sciences and Engineering (PSE) Division; Imaging and Characterization Core Lab
Citation:
Liang R-Z, Babics M, Seitkhan A, Wang K, Geraghty PB, et al. (2017) Additive-Morphology Interplay and Loss Channels in “All-Small-Molecule” Bulk-heterojunction (BHJ) Solar Cells with the Nonfullerene Acceptor IDTTBM. Advanced Functional Materials: 1705464. Available: http://dx.doi.org/10.1002/adfm.201705464.
Publisher:
Wiley-Blackwell
Journal:
Advanced Functional Materials
KAUST Grant Number:
CRG_R2_13_BEAU_KAUST_1
Issue Date:
16-Dec-2017
DOI:
10.1002/adfm.201705464
Type:
Article
ISSN:
1616-301X
Sponsors:
R.-Z.L. and M.B. contributed equally to this work. This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. CRG_R2_13_BEAU_KAUST_1 and under the KAUST Solar Center programs. The authors also acknowledge concurrent support under Baseline Research Funding from KAUST. The authors thank KAUST ACL for technical support in the mass spectrometry analyses. Dr. D. J. Jones acknowledges the Australian Renewable Energy Agency, which funds the project grants within the Australian Centre for Advanced Photovoltaics. Responsibility for the views, information or advice expressed herein is not accepted by the Australian Government.
Additional Links:
http://onlinelibrary.wiley.com/doi/10.1002/adfm.201705464/full
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorLiang, Ru-Zeen
dc.contributor.authorBabics, Maximeen
dc.contributor.authorSeitkhan, Akmaralen
dc.contributor.authorWang, Kaien
dc.contributor.authorGeraghty, Paul Bythellen
dc.contributor.authorLopatin, Sergeien
dc.contributor.authorCruciani, Federicoen
dc.contributor.authorFirdaus, Yuliaren
dc.contributor.authorCaporuscio, Marcoen
dc.contributor.authorJones, David J.en
dc.contributor.authorBeaujuge, Pierreen
dc.date.accessioned2018-01-01T12:19:04Z-
dc.date.available2018-01-01T12:19:04Z-
dc.date.issued2017-12-16en
dc.identifier.citationLiang R-Z, Babics M, Seitkhan A, Wang K, Geraghty PB, et al. (2017) Additive-Morphology Interplay and Loss Channels in “All-Small-Molecule” Bulk-heterojunction (BHJ) Solar Cells with the Nonfullerene Acceptor IDTTBM. Advanced Functional Materials: 1705464. Available: http://dx.doi.org/10.1002/adfm.201705464.en
dc.identifier.issn1616-301Xen
dc.identifier.doi10.1002/adfm.201705464en
dc.identifier.urihttp://hdl.handle.net/10754/626634-
dc.description.abstractAchieving efficient bulk-heterojunction (BHJ) solar cells from blends of solution-processable small-molecule (SM) donors and acceptors is proved particularly challenging due to the complexity in obtaining a favorable donor–acceptor morphology. In this report, the BHJ device performance pattern of a set of analogous, well-defined SM donors—DR3TBDTT (DR3), SMPV1, and BTR—used in conjunction with the SM acceptor IDTTBM is examined. Examinations show that the nonfullerene “All-SM” BHJ solar cells made with DR3 and IDTTBM can achieve power conversion efficiencies (PCEs) of up to ≈4.5% (avg. 4.0%) when the solution-processing additive 1,8-diiodooctane (DIO, 0.8% v/v) is used in the blend solutions. The figures of merit of optimized DR3:IDTTBM solar cells contrast with those of “as-cast” BHJ devices from which only modest PCEs <1% can be achieved. Combining electron energy loss spectrum analyses in scanning transmission electron microscopy mode, carrier transport measurements via “metal-insulator-semiconductor carrier extraction” methods, and systematic recombination examinations by light-dependence and transient photocurrent analyses, it is shown that DIO plays a determining role—establishing a favorable lengthscale for the phase-separated SM donor–acceptor network and, in turn, improving the balance in hole/electron mobilities and the carrier collection efficiencies overall.en
dc.description.sponsorshipR.-Z.L. and M.B. contributed equally to this work. This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. CRG_R2_13_BEAU_KAUST_1 and under the KAUST Solar Center programs. The authors also acknowledge concurrent support under Baseline Research Funding from KAUST. The authors thank KAUST ACL for technical support in the mass spectrometry analyses. Dr. D. J. Jones acknowledges the Australian Renewable Energy Agency, which funds the project grants within the Australian Centre for Advanced Photovoltaics. Responsibility for the views, information or advice expressed herein is not accepted by the Australian Government.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/adfm.201705464/fullen
dc.subjectBulk heterojunctionsen
dc.subjectNonfullerenesen
dc.subjectOrganic photovoltaicsen
dc.subjectSmall moleculesen
dc.subjectSolar cellsen
dc.titleAdditive-Morphology Interplay and Loss Channels in “All-Small-Molecule” Bulk-heterojunction (BHJ) Solar Cells with the Nonfullerene Acceptor IDTTBMen
dc.typeArticleen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentImaging and Characterization Core Laben
dc.identifier.journalAdvanced Functional Materialsen
dc.contributor.institutionSchool of Chemistry; Bio21 Institute; The University of Melbourne; Parkville Victoria 3010 Australiaen
kaust.authorLiang, Ru-Zeen
kaust.authorBabics, Maximeen
kaust.authorSeitkhan, Akmaralen
kaust.authorWang, Kaien
kaust.authorLopatin, Sergeien
kaust.authorCruciani, Federicoen
kaust.authorFirdaus, Yuliaren
kaust.authorCaporuscio, Marcoen
kaust.authorBeaujuge, Pierreen
kaust.grant.numberCRG_R2_13_BEAU_KAUST_1en
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