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Mechanistic Insight...
Mechanistic Insights into the Role of the Bis(trifluoromethanesulfonyl) imide Ion in Coevaporated p-i-n Perovskite Solar Cells
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- Klipfel, Nadja (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Kanda, Hiroyuki (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Sutanto, Albertus Adrian (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Mensi, Mounir (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Igci, Cansu (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Leifer, Klaus, 1965- (författare)
- Uppsala universitet,Tillämpad materialvetenskap,Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Brooks, Keith (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Kinge, Sachin (författare)
- Toyota Motor Co Ltd, Adv Technol Div, Toyota Motor Tech Ctr, B-1930 Zaventem, Belgium.
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- Roldan-Carmona, Cristina (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.;Univ Valencia, Inst Ciencia Mol ICMol, C-J Beltran 2, Paterna 46980, Spain.
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- Momblona, Cristina (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Dyson, Paul J. (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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- Nazeeruddin, Mohammad Khaja (författare)
- Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland.
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Ecole Polytech Fed Lausanne EPFL Valais Wallis, Inst Chem Sci & Engn, Grp Mol Engn Funct Mat, CH-1951 Sion, Switzerland Tillämpad materialvetenskap (creator_code:org_t)
- 2021-10-27
- 2021
- Engelska.
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Ingår i: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 13:44, s. 52450-52460
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Hybrid lead halide perovskites have reached comparable efficiencies to state-of-the-art silicon solar cell technologies. However, a remaining key challenge toward commercialization is the resolution of the perovskite device instability. In this work, we identify for the first time the mobile nature of bis-(trifluoromethanesulfonyl)imide (TFSI-), a typical anion extensively employed in p-type dopants for 2,2'7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'spirofluorene (spiro-OMeTAD). We demonstrate that TFSI- can migrate through the perovskite layer via the grain boundaries and accumulate at the perovskite/electrontransporting layer (ETL) interface. Our findings reveal that the migration of TFSI- enhances the device performance and stability, resulting in highly stable p-i-n cells that retain 90% of their initial performance after 1600 h of continuous testing. Our systematic study, which targeted the effect of the nature of the dopant and its concentration, also shows that TFSI- acts as a dynamic defect-healing agent, which self-passivates the perovskite crystal defects during the migration process and thereby decreases nonradiative recombination pathways.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- perovskites
- spiro-OMeTAD
- dopant
- migration
- thermal evaporation
- surface passivation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Klipfel, Nadja
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Kanda, Hiroyuki
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Sutanto, Albertu ...
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Mensi, Mounir
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Igci, Cansu
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Leifer, Klaus, 1 ...
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visa fler...
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Brooks, Keith
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Kinge, Sachin
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Roldan-Carmona, ...
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Momblona, Cristi ...
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Dyson, Paul J.
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Nazeeruddin, Moh ...
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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ACS Applied Mate ...
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Uppsala universitet