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18.9% Efficient Org...
18.9% Efficient Organic Solar Cells Based on n-Doped Bulk-Heterojunction and Halogen-Substituted Self-Assembled Monolayers as Hole Extracting Interlayers
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- Lin, Yuanbao (författare)
- King Abdullah University of Science and Technology (KAUST),University Of Oxford
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- Zhang, Yadong (författare)
- University of Colorado at Boulder,Georgia Institute of Technology
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- Zhang, Junxiang (författare)
- Georgia Institute of Technology,University of Colorado at Boulder
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visa fler...
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- Marcinskas, Mantas (författare)
- Kaunas University of Technology
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- Malinauskas, Tadas (författare)
- Kaunas University of Technology
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- Magomedov, Artiom (författare)
- Kaunas University of Technology
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- Nugraha, Mohamad Insan (författare)
- King Abdullah University of Science and Technology (KAUST),National Research & Innovation Agency (BRIN)
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- Kaltsas, Dimitris (författare)
- National Technical University of Athens (NTUA)
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- Naphade, Dipti R. (författare)
- King Abdullah University of Science and Technology (KAUST)
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- Harrison, George T. (författare)
- King Abdullah University of Science and Technology (KAUST)
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- El-Labban, Abdulrahman (författare)
- King Abdullah University of Science and Technology (KAUST)
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- Barlow, Stephen (författare)
- Georgia Institute of Technology,University of Colorado at Boulder
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- De Wolf, Stefaan (författare)
- King Abdullah University of Science and Technology (KAUST)
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- Wang, Ergang, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- McCulloch, Iain (författare)
- King Abdullah University of Science and Technology (KAUST),University Of Oxford
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- Tsetseris, Leonidas (författare)
- National Technical University of Athens (NTUA)
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- Getautis, Vytautas (författare)
- Kaunas University of Technology
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- Marder, Seth R. (författare)
- University of Colorado at Boulder,Georgia Institute of Technology
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- Anthopoulos, Thomas D. (författare)
- King Abdullah University of Science and Technology (KAUST)
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(creator_code:org_t)
- 2022-10-03
- 2022
- Engelska.
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Ingår i: Advanced Energy Materials. - : Wiley. - 1614-6840 .- 1614-6832. ; 12:45
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- 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
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Andra medicinska och farmaceutiska grundvetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Other Basic Medicine (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- self-assembled monolayers
- molecular dopants
- organic solar cells
- organic semiconductors
- organic bulk-heterojunctions
- solution processing
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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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