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Additive Effect of Bromides and Chlorides on the Performance of Perovskite Solar Cells Fabricated via Sequential Deposition
Abstract
A two-step sequential deposition method has been applied to prepare the solar cells with two types of perovskites Cs0.15FA0.85Pb(I0.95Cl0.05)3 and Cs0.15FA0.85Pb(I0.95Br0.05)3. In order to obtain the perovskite layers, the different sources of bromine and chlorine atoms were used for synthesis. The performance and time stability of chloride-based photocells are worse in comparison to the bromide-based devices. It can be explained by the effect of an accumulation of Cl atoms at the interfaces between the chloride-based perovskites and the layer of PCBM. Such a process causes an increasing of interface recombination. Also, the bulk density of states and, consequently, the bulk recombination of charge carriers seem to be higher for the perovskite layers obtained with chlorine atoms. The two-step technique applied to create the bromide perovskites less influences the photocells performance as in the case of one-step deposition. We can explain this observation by an existence of nucleation sites in the inorganic layer which improve the growth of a perovskite material.
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Authors (9)
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Manon Verger
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Harrie Gorter Dr.
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Ilker Dogan
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Wiljan Verhees
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Mehrdad Najafi dr
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Sjoerd Veenstra Dr
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Yulia Galagan dr
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jpowsour.2021.230528
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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JOURNAL OF POWER SOURCES
no. 513,
ISSN: 0378-7753 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Szmytkowski J., Głowienka D., Verger M., Gorter H., Dogan I., Verhees W., Najafi M., Veenstra S., Galagan Y.: Additive Effect of Bromides and Chlorides on the Performance of Perovskite Solar Cells Fabricated via Sequential Deposition// JOURNAL OF POWER SOURCES -Vol. 513,iss. 230528 (2021), s.1-9
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jpowsour.2021.230528
- Sources of funding:
-
- NCN 2018/29/N/ST7/02326
- Verified by:
- Gdańsk University of Technology
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