Increased efficiency of organic solar cells by seeded control of the molecular morphology in the active layer

Simple item page
dc.contributor.authorRahaman, MHen_AU
dc.contributor.authorHolland, Jen_AU
dc.contributor.authorHossain, MAen_AU
dc.contributor.authorDuan, LPen_AU
dc.contributor.authorHoex, Ben_AU
dc.contributor.authorMota-Santiago, Pen_AU
dc.contributor.authorMitchell, VDen_AU
dc.contributor.authorUddin, Aen_AU
dc.contributor.authorStride, JAen_AU
dc.date.accessioned2022-05-03T01:32:48Zen_AU
dc.date.available2022-05-03T01:32:48Zen_AU
dc.date.issued2022-03-29en_AU
dc.date.statistics2022-04-22en_AU
dc.description.abstractThe performance of non-fullerene, polymer bulk heterojunction (BHJ) organic photovoltaic devices has a significant correlation with the molecular morphology of the donor and acceptor. The authors show that small organic molecules coordinated to a metal oxide, an electron transport seed layer (ETSL), can profoundly modify the donor:acceptor molecular morphology of inverted organic photovoltaic (OPV) devices. Using grazing incidence wide angle X-ray scattering (GIWAXS), the authors show that a PTB7-Th:IEICO-4F BHJ active layer has a higher degree of face-on molecular alignment on ETSL-1 (biphenyl-4,4′-dicarboxylic acid, coordinated to ZnO), whilst for naphthalene-2,6-dicarboxylic acid coordinated to ZnO (ETSL-2), it is reduced. Devices of PTB7-Th:IEICO-4F BHJ prepared on ETSL-1 had a 19.91% increase in the average power conversion efficiency (PCE), a 1.56% increase in the fill factor (FF), and a 16.66 ± 0.2% enhancement in the short circuit current density. The observed improvements are believed to be due to significant modifications to the oxide-BHJ interfacial region of ETSL-1, namely the elimination of nano-ridges and defect centers, along with an enhanced wettability. These factors can be correlated with the enhanced device performances, leading to the conclusion that the modulation of the molecular morphology of donor:acceptor blends by ETSL-1 has a broad impact on improving OPV cell efficiencies. © 2022 The Authors. Solar RRL published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution Licenceen_AU
dc.description.sponsorshipThe authors would like to highly express their sincere gratitude to Australian Nuclear Science and Technology Organization (ANSTO) and Dr. Valerie Mitchell for helping with the GIWAXS experiment. This research was undertaken on the SAXS/WAXS beamline at the Australian Synchrotron, part of ANSTO. The authors would also like to gratefully acknowledge the support from the staff of the School of Photovoltaic and Renewable Energy Engineering (SPREE), Dr. Yin Yao from the Electron Microscope Unit (EMU), and Dr. Anne Rich and Dr. Bill Bin Gong from surface analysis laboratory, Solid State and Elemental Analysis Unit (SSEAU) under Mark Wainwright Analytical Centre, University of New South Wales (UNSW). This work was also undertaken with the assistance of resources and services from the National Computational Infrastructure (NCI), which is supported by the Australian Government, and through the UNSW-NCI partner trial scheme. Open access publishing facilitated by University of New South Wales, as part of the Wiley - University of New South Wales agreement via the Council of Australian University Librarians.en_AU
dc.identifier.articlenumber2200184en_AU
dc.identifier.citationRahaman, M. H., Holland, J., Hossain, M. A., Duan, L., Hoex, B., Mota-Santiago, P., Mitchell, V. D., Uddin, A. & Stride, J. A. Increased efficiency of organic solar cells by seeded control of the molecular morphology in the active layer. Solar RRR, 6(7), 12, 2200184. doi:10.1002/solr.202200184en_AU
dc.identifier.issn2367-198Xen_AU
dc.identifier.issue7en_AU
dc.identifier.journaltitleSolar RRLen_AU
dc.identifier.pagination12en_AU
dc.identifier.urihttps://doi.org/10.1002/solr.202200184en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13092en_AU
dc.identifier.volume6en_AU
dc.language.isoenen_AU
dc.publisherWiley-VCH GmbHen_AU
dc.subjectOrganic solar cellsen_AU
dc.subjectMorphologyen_AU
dc.subjectPhotovoltaic cellsen_AU
dc.subjectMoleculesen_AU
dc.subjectMOS solar cellsen_AU
dc.subjectScatteringen_AU
dc.subjectElectric currentsen_AU
dc.titleIncreased efficiency of organic solar cells by seeded control of the molecular morphology in the active layeren_AU
dc.typeJournal Articleen_AU
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Solar RRL - 2022 - Rahaman - Increased Efficiency of Organic Solar Cells by Seeded Control of the Molecular Morphology in.pdf
Size:
2.22 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles