onr:"swepub:oai:DiVA.org:uu-469017"
Search: onr:"swepub:oai:DiVA.org:uu-469017" > Surface Reconstruct...
- 1 of 1
- Previous record
- Next record
- To hitlist
Surface Reconstruction Engineering with Synergistic Effect of Mixed-Salt Passivation Treatment toward Efficient and Stable Perovskite Solar Cells
-
- Suo, Jiajia (author)
- Ecole Polytech Fed Lausanne, Lab Photomol Sci LSPM, Inst Chem Sci & Engn, Sch Basic Sci, CH-1015 Lausanne, Switzerland.
-
- Yang, Bowen (author)
- Ecole Polytech Fed Lausanne, Lab Photomol Sci LSPM, Inst Chem Sci & Engn, Sch Basic Sci, CH-1015 Lausanne, Switzerland.
-
- Mosconi, Edoardo (author)
- Ist CNR Sci & Tecnol Chim Giulio Natta CNR SCITEC, Computat Lab Hybrid Organ Photovolta CLHYO, I-06123 Perugia, Italy.
- show more...
- show less...
- Ecole Polytech Fed Lausanne, Lab Photomol Sci LSPM, Inst Chem Sci & Engn, Sch Basic Sci, CH-1015 Lausanne, Switzerland Ist CNR Sci & Tecnol Chim Giulio Natta CNR SCITEC, Computat Lab Hybrid Organ Photovolta CLHYO, I-06123 Perugia, Italy. (creator_code:org_t)
- 2021-06-17
- 2021
- English.
- In: Advanced Functional Materials. - : John Wiley & Sons. - 1616-301X .- 1616-3028. ; 31:34
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Surface passivation treatment is a widely used strategy to resolve trap-mediated nonradiative recombination toward high-efficiency metal-halide perovskite photovoltaics. However, a lack of passivation with mixture treatment has been investigated, as well as an in-depth understanding of its passivation mechanism. Here, a systematic study on a mixed-salt passivation strategy of formamidinium bromide (FABr) coupled with different F-substituted alkyl lengths of ammonium iodide is demonstrated. It is obtained better device performance with decreasing chain length of the F-substituted alkyl ammonium iodide in the presence of FABr. Moreover, they unraveled a synergistic passivation mechanism of the mixed-salt treatment through surface reconstruction engineering, where FABr dominates the reformation of the perovskite surface via reacting with the excess PbI2. Meanwhile, ammonium iodide passivates the perovskite grain boundaries both on the surface and top perovskite bulk through penetration. This synergistic passivation engineer results in a high-quality perovskite surface with fewer defects and suppressed ion migration, leading to a champion efficiency of 23.5% with mixed-salt treatment. In addition, the introduction of the moisture resisted F-substituted groups presents a more hydrophobic perovskite surface, thus enabling the decorated devices with excellent long-term stability under a high humid atmosphere as well as operational conditions.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- mixed-salt passivation
- perovskite solar cells
- surface reconstruction engineering
- synergistic effects
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Advanced Functional Materials (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Suo, Jiajia
- Yang, Bowen
- Mosconi, Edoardo
- Choi, Hyeon-Seo
- Kim, YeonJu
- Zakeeruddin, Sha ...
- show more...
- De Angelis, Fili ...
- Grätzel, Michael
- Kim, Hui-Seon
- Hagfeldt, Anders
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Condensed Matter ...
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Chemical Science ...
- and Materials Chemis ...
- Articles in the publication
- Advanced Functio ...
- By the university
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
