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OH - ions can reduc...
OH - ions can reduce the iodide migration in MAPI
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- Brophy, Rachel Elizabeth (author)
- Reykjavik University
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- Kateb, Movaffaq, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ghitiu, I. (author)
- Universitatea din Bucuresti,National Institute for Laser, Plasma and Radiation Physics
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- Filipoiu, N. (author)
- Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering,Universitatea din Bucuresti
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- Torfason, Kristinn (author)
- Reykjavik University
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- Svavarsson, Halldor Gudfinnur (author)
- Reykjavik University
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- Nemnes, George Alexandru (author)
- Universitatea din Bucuresti,Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
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Pintilie, Ioana (author)
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- Manolescu, Andrei (author)
- Reykjavik University
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Proceedings of the International Semiconductor Conference, CAS. ; , s. 139-142
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Abstract
Subject headings
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- One of the main degradation mechanisms of methylammonium lead iodine (MAPI), which is an important material for perovskite based solar cells, is the migration of iodide ions. It is believed that this phenomenon is in fact dominated by the diffusion of iodide vacancies. In this paper, we suggest that the addition of a small amount of OH- ions can help suppress the migration of iodide and increase the overall stability of the material. Through the use of molecular dynamics simulations, we show that the OH- ions can bind to the positively charged iodide vacancies and can block the access of the negative iodide ions into those vacancies.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- MAPI material
- molecular dynamics simulations
- iodide migration
Publication and Content Type
- kon (subject category)
- ref (subject category)
To the university's database
- By the author/editor
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Brophy, Rachel E ...
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Kateb, Movaffaq, ...
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Ghitiu, I.
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Filipoiu, N.
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Torfason, Kristi ...
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Svavarsson, Hall ...
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show more...
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Nemnes, George A ...
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Pintilie, Ioana
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Manolescu, Andre ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
- Proceedings of t ...
- By the university
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Chalmers University of Technology