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18.9% Efficient Org...
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Lin, YuanbaoKing Abdullah University of Science and Technology (KAUST),University Of Oxford
(författare)
18.9% Efficient Organic Solar Cells Based on n-Doped Bulk-Heterojunction and Halogen-Substituted Self-Assembled Monolayers as Hole Extracting Interlayers
- Artikel/kapitelEngelska2022
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Nummerbeteckningar
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LIBRIS-ID:oai:research.chalmers.se:2aca3f85-34fc-48f6-a15f-4c2b6e12d625
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https://doi.org/10.1002/aenm.202202503DOI
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https://research.chalmers.se/publication/532478URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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The influence of halogen substitutions (F, Cl, Br, and I) on the energy levels of the self-assembled hole-extracting molecule [2-(9H-Carbazol-9-yl)ethyl]phosphonic acid (2PACz), is investigated. It is found that the formation of self-assembled monolayers (SAMs) of [2-(3,6-Difluoro-9H-carbazol-9-yl)ethyl]phosphonic acid (F-2PACz), [2-(3,6-Dichloro-9H-carbazol-9-yl)ethyl]phosphonic acid (Cl-2PACz), [2-(3,6-Dibromo-9H-carbazol-9-yl)ethyl]phosphonic acid (Br-2PACz), and [2-(3,6-Diiodo-9H-carbazol-9-yl)ethyl]phosphonic acid (I-2PACz) directly on indium tin oxide (ITO) increases its work function from 4.73 eV to 5.68, 5.77, 5.82, and 5.73 eV, respectively. Combining these ITO/SAM electrodes with the ternary bulk-heterojunction (BHJ) system PM6:PM7-Si:BTP-eC9 yields organic photovoltaic (OPV) cells with power conversion efficiency (PCE) in the range of 17.7%-18.5%. OPVs featuring Cl-2PACz SAMs yield the highest PCE of 18.5%, compared to cells with F-2PACz (17.7%), Br-2PACz (18.0%), or I-2PACz (18.2%). Data analysis reveals that the enhanced performance of Cl-2PACz-based OPVs relates to the increased hole mobility, decreased interface resistance, reduced carrier recombination, and longer carrier lifetime. Furthermore, OPVs featuring Cl-2PACz show enhanced stability under continuous illumination compared to ITO/PEDOT:PSS-based cells. Remarkably, the introduction of the n-dopant benzyl viologen into the BHJ further boosted the PCE of the ITO/Cl-2PACz cells to a maximum value of 18.9%, a record-breaking value for SAM-based OPVs and on par with the best-performing OPVs reported to date.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Zhang, YadongUniversity of Colorado at Boulder,Georgia Institute of Technology
(författare)
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Zhang, JunxiangGeorgia Institute of Technology,University of Colorado at Boulder
(författare)
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Marcinskas, MantasKaunas University of Technology
(författare)
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Malinauskas, TadasKaunas University of Technology
(författare)
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Magomedov, ArtiomKaunas University of Technology
(författare)
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Nugraha, Mohamad InsanKing Abdullah University of Science and Technology (KAUST),National Research & Innovation Agency (BRIN)
(författare)
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Kaltsas, DimitrisNational Technical University of Athens (NTUA)
(författare)
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Naphade, Dipti R.King Abdullah University of Science and Technology (KAUST)
(författare)
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Harrison, George T.King Abdullah University of Science and Technology (KAUST)
(författare)
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El-Labban, AbdulrahmanKing Abdullah University of Science and Technology (KAUST)
(författare)
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Barlow, StephenGeorgia Institute of Technology,University of Colorado at Boulder
(författare)
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De Wolf, StefaanKing Abdullah University of Science and Technology (KAUST)
(författare)
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Wang, Ergang,1981Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ergang
(författare)
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McCulloch, IainKing Abdullah University of Science and Technology (KAUST),University Of Oxford
(författare)
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Tsetseris, LeonidasNational Technical University of Athens (NTUA)
(författare)
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Getautis, VytautasKaunas University of Technology
(författare)
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Marder, Seth R.University of Colorado at Boulder,Georgia Institute of Technology
(författare)
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Anthopoulos, Thomas D.King Abdullah University of Science and Technology (KAUST)
(författare)
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King Abdullah University of Science and Technology (KAUST)University Of Oxford
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Advanced Energy Materials: Wiley12:451614-68401614-6832
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Lin, Yuanbao
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Zhang, Yadong
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Zhang, Junxiang
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Marcinskas, Mant ...
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Malinauskas, Tad ...
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Magomedov, Artio ...
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Nugraha, Mohamad ...
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Kaltsas, Dimitri ...
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Naphade, Dipti R ...
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Harrison, George ...
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El-Labban, Abdul ...
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Barlow, Stephen
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De Wolf, Stefaan
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Wang, Ergang, 19 ...
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McCulloch, Iain
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Tsetseris, Leoni ...
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Getautis, Vytaut ...
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Marder, Seth R.
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Anthopoulos, Tho ...
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