Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films
Paul Fassl
1, 2, 3, 4, 5, 6, 7
,
Y. Zakharko
4, 5, 6, 8, 9
,
Lukas M Falk
1, 2, 3, 4, 5, 6, 7
,
Katelyn P Goetz
1, 2, 3, 4, 5, 6, 7
,
Fabian Paulus
1, 2, 8
,
Alexander D Taylor
1, 2, 3, 4, 5, 6, 7
,
Jana Zaumseil
2, 4, 5, 6, 7, 8, 9
,
Y. Vaynzof
1, 2, 3, 4, 5, 6, 7
3
Kirchhoff Institute for Physics
5
69120 Heidelberg
6
GERMANY
|
7
Centre for Advanced Materials
9
Physical Chemistry Institute
Publication type: Journal Article
Publication date: 2019-02-05
scimago Q1
wos Q1
SJR: 1.220
CiteScore: 9.3
Impact factor: 5.1
ISSN: 20507526, 20507534
Materials Chemistry
General Chemistry
Abstract
In this work we investigate the effect of tuning the density of surface defects of methylammonium lead triiodide (MAPbI3) perovskite films on their photoluminescence (PL) properties. Control over the density of defects is achieved by fractionally changing the perovskite precursor stoichiometry, which results in a gradual change in the I− and MA+ vacancy/interstitial densities. PL spectroscopy studies reveal that an increase in stoichiometry results in both a lower initial PL and a lower enhancement upon exposure to light in the ambient environment. Confocal PL microscopy and time resolved studies show that the heterogeneity in emission properties across the samples is also closely related to the spatial distribution of the density of surface defects. Our results show that while the overall density of defects dictates the initial PL, it is the density of shallow defects that determines the evolution of the PL with time.
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70
Total citations:
70
Citations from 2025:
6
(8.57%)
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GOST
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Fassl P. et al. Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films // Journal of Materials Chemistry C. 2019. Vol. 7. No. 18. pp. 5285-5292.
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Fassl P., Zakharko Y., Falk L. M., Goetz K. P., Paulus F., Taylor A. D., Zaumseil J., Vaynzof Y. Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films // Journal of Materials Chemistry C. 2019. Vol. 7. No. 18. pp. 5285-5292.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1039/c8tc05998e
UR - https://xlink.rsc.org/?DOI=C8TC05998E
TI - Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films
T2 - Journal of Materials Chemistry C
AU - Fassl, Paul
AU - Zakharko, Y.
AU - Falk, Lukas M
AU - Goetz, Katelyn P
AU - Paulus, Fabian
AU - Taylor, Alexander D
AU - Zaumseil, Jana
AU - Vaynzof, Y.
PY - 2019
DA - 2019/02/05
PB - Royal Society of Chemistry (RSC)
SP - 5285-5292
IS - 18
VL - 7
SN - 2050-7526
SN - 2050-7534
ER -
Cite this
BibTex (up to 50 authors)
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@article{2019_Fassl,
author = {Paul Fassl and Y. Zakharko and Lukas M Falk and Katelyn P Goetz and Fabian Paulus and Alexander D Taylor and Jana Zaumseil and Y. Vaynzof},
title = {Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films},
journal = {Journal of Materials Chemistry C},
year = {2019},
volume = {7},
publisher = {Royal Society of Chemistry (RSC)},
month = {feb},
url = {https://xlink.rsc.org/?DOI=C8TC05998E},
number = {18},
pages = {5285--5292},
doi = {10.1039/c8tc05998e}
}
Cite this
MLA
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Fassl, Paul, et al. “Effect of density of surface defects on photoluminescence properties in MAPbI3 perovskite films.” Journal of Materials Chemistry C, vol. 7, no. 18, Feb. 2019, pp. 5285-5292. https://xlink.rsc.org/?DOI=C8TC05998E.
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