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dc.contributor.authorKaruthedath, Safakath
dc.contributor.authorFirdaus, Yuliar
dc.contributor.authorScaccabarozzi, Alberto D.
dc.contributor.authorInsan Nugraha, Mohamad
dc.contributor.authorAlam, Shahidul
dc.contributor.authorAnthopoulos, Thomas D.
dc.contributor.authorLaquai, Frédéric
dc.date.accessioned2022-02-10T08:08:22Z
dc.date.available2022-02-10T08:08:22Z
dc.date.issued2022-02-09
dc.date.submitted2021-11-09
dc.identifier.citationKaruthedath, Firdaus, Y., Scaccabarozzi, A. D., Insan Nugraha, M., Alam, S., Anthopoulos, T. D., & Laquai, F. (2022). Trace Solvent Additives Enhance Charge Generation in Layer-by-Layer Coated Organic Solar Cells. Small Structures. Portico. https://doi.org/10.1002/sstr.202100199
dc.identifier.issn2688-4062
dc.identifier.issn2688-4062
dc.identifier.doi10.1002/sstr.202100199
dc.identifier.urihttp://hdl.handle.net/10754/675498
dc.description.abstractIn bulk heterojunction (BHJ) organic solar cells (OSC), the photoactive layer morphology controls charge carrier generation, transport, and extraction. Obtaining the ‘optimum’ morphology is often achieved by empiric optimization of processing conditions and post-processing treatment. Better control over the morphology can be achieved by sequential photoactive layer-by-layer (LbL) deposition techniques, creating a pseudo-bilayer OSC. Solvent additives can be used to modify the vertical component distribution, thereby enhancing OSC efficiency. However, the impact of solvent additives on device photophysics is often unclear. Here, the photophysics of LbL-coated PM6/Y6 organic solar cells are reported. Enhanced PCEs are observed when using 1-chloronaphthalene (CN) as solvent additive. Transient absorption (TA) spectroscopy indicates that the addition of 0.5% CN facilitates both exciton dissociation and charge separation, while excessive (>1%) use of CN causes fast geminate and non-geminate charge recombination and consequently deteriorates device performance. The results outline routes to fine-tune the morphology of LbL-coated photoactive layers of OSCs and provide insight into the reasons for increased PCEs.
dc.description.sponsorshipThis publication is based on work supported by the KAUST Office of Sponsored Research (OSR) under award numbers OSR-2019-CARF/CCF-3079and OSR-CRG2018-3746.GIWAXS experiments were performed at BL11 NCD-SWEET beamlineat ALBA Synchrotron (Spain) with the collaboration of ALBA staff.
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/10.1002/sstr.202100199
dc.rightsArchived with thanks to Small Structures
dc.titleTrace Solvent Additives Enhance Charge Generation in Layer-by-Layer Coated Organic Solar Cells
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentPhysical Sciences and Engineering Division (PSE) Material Science and Engineering Program (MSE) King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Thuwal 23955-6900 Kingdom of Saudi Arabia
dc.contributor.departmentMaterial Science and Engineering Program
dc.identifier.journalSmall Structures
dc.rights.embargodate2023-02-09
dc.eprint.versionPost-print
dc.contributor.institutionResearch Center for Electronics and Telecommunication National Research and Innovation Agency (BRIN) Jalan Sangkuriang Komplek LIPI Building 20 Level 4 Bandung 40135 Indonesia
dc.contributor.institutionCenter for Nano Science and Technology @PoliMi Istituto Italiano di Tecnologia Via G. Pascoli 70/3 Milano 20133 Italy
kaust.personKaruthedath, Safakath
kaust.personFirdaus, Yuliar
kaust.personScaccabarozzi, Alberto Davide
kaust.personInsan Nugraha, Mohamad
kaust.personAlam, Shahidul
kaust.personAnthopoulos, Thomas D.
kaust.personLaquai, Frederic
kaust.grant.numberOSR-2019-CARF/CCF-3079
kaust.grant.numberOSR-CRG2018-3746
dc.date.accepted2022-02-07
refterms.dateFOA2022-02-10T08:09:49Z
kaust.acknowledged.supportUnitCARF
kaust.acknowledged.supportUnitCCF
kaust.acknowledged.supportUnitCRG
kaust.acknowledged.supportUnitKAUST Office of Sponsored Research (OSR)


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